2018 KIA Optima Problems & Complaints
Real owner complaints and problems reported to the National Highway Traffic Safety Administration (NHTSA). View common issues by component.
212
Complaints Reported
Complaints by Component
ENGINE
80 complaints
While driving my 2018 Kia Optima S, the car suddenly jerked, lost power, and stalled in traffic. Multiple warning lights came on at the same time including the oil light, battery light, and check engine light. I had no acceleration and the brakes became very hard to press. The vehicle had to be towed for safety reasons. The Kia dealership inspected the vehicle and confirmed internal engine failure due to “cylinder failure” and stated the engine needs complete replacement. This failure occurred without any external leaks and without warning other than the sudden loss of power. The dealer stated the issue is not covered, even though it is clearly an internal engine malfunction. This is a major safety hazard because the stall happened while I was in active traffic. A sudden loss of power and braking ability puts me and others at risk of an accident. The problem has been confirmed by the Kia dealership through diagnostic testing. The vehicle is still available for inspection. Warning lamps appeared only at the moment of failure, giving no advance warning. This appears to be related to the ongoing engine defects in Kia vehicles involving oil starvation, loss of compression, cylinder scoring, and internal engine failure. Cylinder failure and sudden stalling should be investigated as part of the known safety-related engine defects affecting this model.
Dec 10, 2025
Car keeps stalling while driving
Nov 26, 2025
I’ve had my car for 6 months and it constantly burns oil I’ve had 4 oil changes because it Is completely disappearing but my mechanics can not find any leaks. Then I changed all my spark plugs and two were completely burnt and they were changed a month ago and now one of them went again and this time is completely covered in oil
Oct 07, 2025
The engine of my 2018 Kia Optima is burning oil. When it started, I had 72,000 miles, and it's burning one quart of oil every thousand miles. There is no oil leak. I will take it back to Kia on October 2, 2025. The mechanic reported that it has an internal engine issue.
Sep 28, 2025
The oil consumption is burning at a faster rate than normal. My oil changes are always on time but for months I have been having to take it for an oil change about 2,000 miles below mileage time. I have had it inspected but found no oil leaks. This is a major problem for the engine and safety.
Sep 24, 2025
+ 75 more complaints for this component
UNKNOWN OR OTHER
14 complaints
Paint on all four door handles are bubbling and chipping. I rarely use the backseat handles and passenger door, which makes it more likely to be a malfunction in whatever paint was used for the handles. There is no fading, chipping, or bubbling on other parts of my car.
Dec 03, 2025
Trunk latch broke leaving it impossible for someone in the trunk to get out and very difficult for someone on the outside to open the trunk
Oct 13, 2025
Sudden loss of acceleration at freeway speed. Unable to start after incident. Unknown cause. Shop unable to diagnose.
Jun 24, 2024
Trunk latch is broken. Car doesn’t alert that trunk is open.
Oct 06, 2023
When we drive the car it hesitates as if it’s going to cut off and it keep burning oil. We have to put in at least 2-3 quarts in per week.
Jul 12, 2023
+ 9 more complaints for this component
ENGINE AND ENGINE COOLING
9 complaints
The contact owns a 2018 Kia Optima. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal with the oil warning light flashing on the instrument panel. The contact's friend initially inspected the vehicle and discovered that the engine oil was empty. The vehicle was taken to a dealer where a diagnostic test was performed, and the mechanic discovered oil around the engine; however, the source of the leak was not discovered. The contact was informed that an engine valve was sealed and that the failure was repaired. Despite the repair, the failure persisted, and the oil light was frequently illuminated on the instrument panel. The engine oil level was checked and was extremely low. The dealer had not offered any additional assistance for the repair. The vehicle was not repaired. The contact made several attempts to reach the manufacturer but was unsuccessful. The failure mileage was approximately 10,000.
Aug 18, 2025
The contact owns a 2018 Kia Optima. The contact stated that while driving 65 MPH, the check engine warning light illuminated, and the vehicle shuddered and stalled. The contact was able to pull over to the side of the road. The vehicle was able to restart but was shuddering significantly. The vehicle was towed to the dealer, where it was diagnosed with a fractured valve in cylinder #1. The dealer determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was notified of the failure and confirmed that the maintenance records of the vehicle were satisfactory; however, the manufacturer denied assistance and informed the contact that the failure was not a factory defect but was due to wear and tear. The failure mileage was approximately 109,000.
Mar 19, 2025
The contact owns a 2018 Kia Optima. The contact stated that while his daughter was driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle went into LIMP Mode. The vehicle was towed to an independent mechanic, who related the failure to NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 106,000.
Dec 20, 2024
The contact owns a 2018 Kia Optima. The contact stated that the vehicle was consuming an excessive amount of engine oil. The engine and oil warning lights were flashing on the instrument panel. The vehicle was taken to the local dealer, who performed an oil consumption test. The vehicle failed the oil consumption test and determined that the vehicle was consuming an excessive amount of engine oil. The vehicle was not repaired. The vehicle was taken to another local dealer, Monroeville Kia (3721 William Penn Hwy, Monroeville, PA 15146); who informed the contact there was no recall coverage on the VIN for the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown.
Sep 26, 2024
The contact owns a 2018 Kia Optima. The contact stated that after starting the vehicle, there was an abnormal amount of smoke coming from the exhaust pipe. The contact inspected the dipstick and discovered that the engine oil level was low. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000.
May 23, 2024
+ 4 more complaints for this component
POWER TRAIN
8 complaints
It burns oil constantly. I constantly have to get new filters put on because they become black very quickly same with the oil itself. The engine has a tic and I know other people with optima’s that have the same problem. I burn through 4 quarts in two weeks- less than 600 miles.
Jan 18, 2025
The contact owns a 2018 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle was jerking. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was then taken to Battleground Kia of Greensboro (2927 Battleground Ave, Greensboro, NC 27408) but no cause for the failure was found. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.
Mar 03, 2023
UNKNOWN When slowing to a stop, the vehicle spontaneously makes a sudden jolt, throwing passengers forward. It’s as if the the transmission malfunctions when down shifting and results in engine braking.
Oct 26, 2022
THIS ISSUE HAS HAPPENED MULTIPLE TIMES TO NOT ONLY MYSELF. IT MY WIFE AS WELL. AS WE'RE DRIVING ANYWHERE ABOVE 45MPH. A WARNING DISPLAY COMES ON TELLING US TO CHECK THE HEV, TO PULL OVER, AND TURN OFF OUR VEHICLE. WE COMPLY TO THE WARNING AND WHEN RESTARTING THE VEHICLE, CHECK ENGINE LIGHT COMES ON AND THEN SAME ISSUE HAPPENS AGAIN A FEW MINUTES AFTER DRIVING. ONE OUT OF THE FOUR TIMES THAT THIS ISSUE HAS OCCURED TO US, THE VEHICLE COMPLETELY DIED ON MY WIFE DUE TO THE BATTERY NOT CHARGING. SO WHEN SHE PULLED OVER AND TRIED TO TURN THE VEHICLE BACK ON, IT WOULDN'T RESTART. CODE ON CAR IS P2600 GENERIC COOLANT PUMP CIRCUIT A OPEN. EVERYWHERE SAYS RECALL ISN'T AVAILABLE FOR OUR CAR BUT AM SEEING THAT SAME ISSUE WITH OUR YEAR, MAKE, AND MODEL IS OCCURRING. WHICH IS THE HYBRID PROPULSION SYSTEM IS BEING AFFECTED. THE VOLTAGE PROTECTION DEVICE (VPD), DESIGNED TO PROTECT THE HIGH VOLTAGE BATTERY MODULE IS BEING ACTIVATED INADVERTENTLY.
Nov 11, 2020
THE CV AXLE ASSEMBLIES SNAP LIKE THE 2016 MODELS DO KIA'S RECALL NUMBER SC139.
Dec 24, 2019
+ 3 more complaints for this component
EXTERIOR LIGHTING
8 complaints
Kia Optima headlights turn off randomly while on automatic. This dangerous issue has been investigated on other Kia models by the NTSB, which them prompted Kia to issue a recall. I have found many, many posts on car and Kia forums about headlights shutting off while driving at night with the Kia Optima (as well as other Kia items). It's very scary and very hazardous. This is a widespread issue.
Oct 23, 2024
My grandson was driving home last night on our Clay County West Virginia narrow unlighted road when his 2018 Kia Optima Headlights went out completely. He wrote that he was scared but finally was able to get lights back on before running off the road. Also, several nights while car is locked with one in the car: the headlights came on. He had to unlock the car and start it up to finally get the headlights off. The lights were off when he first entered the house. I have a service call set up for 09-27-24 with Dutch Miller Kia, but there is a $180.96 + tax diagnostic charge and then the cost to repair the situation. I see there are many NHTSA complaints on your website for this problem. Kia apparently has not issued a statement or recall. HELP!
Sep 09, 2024
Headlights randomly turn off while driving. To get them back on you have to switch on and off before they turn back on. Very dangerous for my 17 yr old daughter driving down a highway at night. The lights will also turn on in the middle of the night and if we happen to notice, we have to go to the car and turn the lights on and off to get them fixed. There are numerous reports on this when Google. I am not the only one. Really dangerous!
Apr 12, 2023
When driving with headlights set to Auto the headlights turn off whenever the blinker is used. I've found many complaints however my vehicle has not been inspected. This poses a hazard of driving at night with no headlights, then having to fiddle with the switch to turn them back on.
Feb 23, 2022
while driving, all lights (headlights, instrument, etc) would randomly go dark. Lighting usually restored after toggling the instrument control arm from on-to-off-on. Obviously super dangerous as driver can't see roadway and other drivers can't see the car.
Nov 07, 2021
+ 3 more complaints for this component
ELECTRICAL SYSTEM
7 complaints
Oil pressure switch faulty only has 58168
Sep 22, 2024
The engine consumes all the oil within 1000 miles. The oil light comes on around 800 miles after oil change. The dealership did the 3 separate tests and they all failed. Dealership stated the engine is faulty however Kia corporate denied the claim. There is already a class action lawsuit in progress in California.
Apr 27, 2023
Normally, when the doors are open my car will tell me. The doors notify me that they're open but my trunk was not showing that it was open. It blinks when it is. Due to that I was driving and my trunk seemed closed and it just flew open. So the problems I'm having is that my trunk will not show its open but it also will not close AT ALL due to the latch. I literally had to bungee it closed. This is dangerous. I have seen many recalls in other kia's and hyundai's just like this. This is very dangerous and needs to be recalled and/or fixed.
Nov 14, 2022
The electrical components connected to the headlights seem to be faulty. When lights are set to AUTO, the lights will turn off completely when switching on turn signal. At times the light will not come on at all when set to AUTO or On without cycle back to off.
Mar 27, 2022
Vehicle is making a noise when trying to accelerate. Have replaced all spark plugs and coil #4. It is making noise still and shaking. Coil has been switched and issues are reading fuel injector or air intake or electrical. Previous reading was head gasket... Only on spark plug 4 coil is it reporting an issue...All dealerships locally are booked to even get a diagnostic test.
Sep 17, 2021
+ 2 more complaints for this component
SERVICE BRAKES
6 complaints
Driver side brake light will only work with headlights off. Turn headlights on and it goes out and doesn't start to work until turning off headlights. Also brakes give out when trying to stop, you have to actually shift to neutral for brakes to work again.
Jul 28, 2024
I slowly pulled into the parking lot at work coming around a corner with my break song slowly to see if anything was coming from the other side, pull it around to THE back looking straight ahead to pull into my parking spot as I pulled into my parking spot mind you I have had my foot on the break before. I got there and I got into the park spot. I hit the brakes and the brakes went to the floor multiple times and the car just searched straightforward into the brick wall of the building.
Oct 18, 2023
The braking system "catches" at 13mph regularly. It feels like the brakes are being applied or the vehicle is downshifting when it is decelarating to around 13mph without any actual braking being manually applied. So far no safety risk, but if the brakes fail at any point for any reason, there will be potential for great risk. The local Kia dealer was able to reproduce this but had no explanation, no recommendation, and no further advice or assistance was offered. At this point, the Kia dealership is the only entity to inspect this issue. There are no warning lights or indicators of failure or problems, but this issue has been ongoing since the vehicle was purchased.
Jul 13, 2023
Front brake calipers seize and burning smell and smoke coming for front wheels. Have replaced the rotors, calipers and brake pads(twice) and it does not seem to fix the problem.
Dec 23, 2022
THIS HAS HAPPED NOW 5 TIMES!! WHEN APPLYING MY BRAKES, THE PEDAL GETS FIRM WHICH LITTLE TO NO REDUCTION IN SPEED! THEN PEDAL GOES ALMOST ALL THE WAY TO THE FLOOR AND WHEELS LOCK UP, COMING TO AN ABRUPT STOP! EACH TIME THIS HAPPENED WAS COMPLETELY RANDOM AND WITHOUT ANY TYPE OF WARNING! EACH TIME I WAS APPROACHING A STOPS SIGN OR COMING UP TO AN OFF RAMP! BROUGHT MY CAR INTO THE KIA DEALERSHIP AND THEY CHECKED IT OUT FOR HOURS AND THEY DID NOT COME UP WITH ANYTHING BUT TOLD ME THEY WOULD REPORT IT! SO STILL HAVING PROBLEMS AND THEY CAN'T FIND ANYTHING WRONG WITH IT! I DON'T FEEL I CAN SAFELY DRIVE MY VEHICLE ANYMORE ESPECIALLY WITH MY KIDS!!! THIS NEEDS TO BE ADDRESSED BEFORE SOMEONE GETS HURT!!! BUT OF COURSE KIA WON'T DO THE EXTRA WORK TO HELP SOLVE THE PROBLEM!!
Jul 13, 2020
+ 1 more complaint for this component
AIR BAGS
4 complaints
I was rearended, all air bags deployed except steeringwheel
Nov 26, 2025
The contact called on behalf of his son who owned a 2018 Kia Optima. The contact stated that while driving at approximately 25 MPH, the front of the vehicle crashed into the rear end of the vehicle that was in front of him whom made a sudden stop. The contact was concerned that the air bags were not deployed. No warning lights was illuminated. A police report was filed. No medical attention was sought, and no injuries were sustained. The vehicle was pronounced totaled at the scene. The contact attempted to contact the manufacturer however, received no response. The failure mileage was 96,145.
May 22, 2025
ON NOVEMBER 18, 2019 @ 6:38 PM IN PHOENIX, ARIZONA ON 59TH AVE HEADING WEST I WAS IN A VERY TERRIBLE CAR COLLISION WHERE I WAS AT A STAND STILL AT A RED LIGHT AND WAS REAR ENDED BY A TOYOTA TACOMA GOING 45-60 MPH, UPON IMPACT I WAS FORCED FORWARD AND HIT THE BACK OF A FLAT BED TOW TRUCK AND COMPLETELY DESTROYED THE FRONT OF THE VEHICLE. THE AIRBAGS DID NOT DEPLOY UPON IMPACT.
Dec 05, 2019
TL* THE CONTACTS DAUGHTER WAS A PASSENGER IN A 2018 KIA OPTIMA. THE CONTACT STATED THAT THE VEHICLE WAS REAR ENDED AND CRASHED INTO A TREE. THE FRONTAL DRIVER AND PASSENGER AIR BAGS DID NOT DEPLOY. THE CONTACT'S DAUGHTER AND THE DRIVER WERE INJURED AND TREATED AT A HOSPITAL. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED AND TOWED. THE DEALER AND THE MANUFACTURER WERE NOT CONTACTED. THE FAILURE MILEAGE AND VIN WERE UNKNOWN.
Aug 24, 2018
ELECTRICAL SYSTEM,EXTERIOR LIGHTING
4 complaints
My cars bulbs have been blowing on a regular basis for two years..some of the bulb connections are catching fire and exploding .Ive changed on numerous occasions but doesn’t matter even with new fittings…obviously an electric problem
Aug 19, 2025
While driving at night if the headlights will randomly turn completely off
Oct 22, 2024
When headlight switch is set to automatically come on, the light will sometimes randomly turn off. No warning or indicator on the dash appears showing that they are off. Technicians are unable to reproduce the issue in the shop. Have recommended replacing the entire headlight switch on the turn signal stick.
Sep 15, 2022
The headlights on my 2018 Kia Optima have been turning off and on randomly by themselves while in motion. Each time it's happened has been in different areas at different times of the night. The headlight switch is kept in the auto position most of the time. When the headlights turn off, the screen in the dash for the headlight function switches from auto to off by itself. Sometimes if the turn signal switch is jiggled the lights will come back on. Other times the headlight switch, located on the end of the turn signal switch, has to be turned to the on position to get the lights to turn on. The car has been in for service but each time the technician is unable to reproduce the fault. It is occurring more frequently and becoming a safety issue.
Apr 08, 2022
UNKNOWN OR OTHER,ENGINE
4 complaints
I’ve had the 2018 Kia Optima for a little over a year. I purchased it as a used vehicle. I’ve noticed that the car is utilizing an excessive amount of oil. Each time I get an oil change for the vehicle I am having to purchase oil to refill the vehicle about 2weeks to a month after. I’ve made multiple road trips where I’ve gotten the oil changed before leaving and I drove around 350 miles; halfway through the drive the oil was half empty on the dipstick. The first time this happened I was unaware of this issue and when I arrived to my destination after around 350 miles of driving, the car had little to no oil. I will provide store receipts of each time I had to purchase oil for the vehicle. I will also provide service interval receipts upon request. Dates of oil purchase are as follows: 1.7/18/23 2.8/16/23 3.10/20/23 4.12/18/23 5.2/7/24 6.2/29/24 7.3/18/24 8.5/4/24 9.5/11/24 10.7/9/24 Service intervals for oil changes are kept up with every 3-5k miles and can provide maintenance receipt.
Sep 15, 2024
Excessive oil consumption 1-1.5 months approx. 1,000 miles into new oils change. It is available for inspection. Safety was put at risk due to not knowing there was no oil in my vehicle while constantly driving it as it did not display the oil warning sign on the dash board. The oil change dealership has confirmed an oil consumption issue two separate times. I am familiar with multiple people having this same issue with Kia and hyuandia vehicles. The dealership is requiring multiple steps to be paid out of pocket prior to using the full warranty i purchased to cover the issue even though they know what the issue is and how to fix it.
Aug 22, 2023
Vehicle is burning excessive amounts of oil rapidly. Date of Purchase: 04/13/2023 - mileage : 94,000-96,000 Oil light and engine light began flashing about 1-2 weeks after purchase, then went off after first oil change. noticed burning smell on occasion. First oil change 05/23/2023 - mileage: 98,045 Mechanic reported no oil in vehicle. Traveled out of town, checked oil. no oil in vehicle upon arrival. Second oil change: 06/19/2023 - mileage ~99,641 Mechanic reported no oil leak. Checked oil: 07/18/2023 - no oil in vehicle, mileage: 100,790 Having to schedule an oil change before future date and mileage listed below. Next date of oil change: 09/17/2023 - future mileage: 102,641
Jul 19, 2023
At around 40,000 miles my car started burning oil rapidly. No leaks were found and I would get an oil indicator light then the car would shut down while driving. I couldn’t get it to accelerate. Mechanic said Kia’s and Hyundais have been having those issues. I have needed oil changes every 3 weeks to keep in functioning.
Nov 05, 2022
STRUCTURE
3 complaints
Paint peeling from driver side door.
Nov 29, 2025
I WAS DRIVING ON THE FREEWAY AT ABOUT 60MPH AND SUDDENLY THE FRONT PART OF MY PANORAMIC SUNROOF EXPLODED. THERE WAS NO IMPACT OR ACCIDENT THAT CAUSED THIS. WE WEREN'T HIT BY ANY ROAD DEBRIS OR ANYTHING IT JUST EXPLODED WHILE DRIVING.
Apr 20, 2021
WHILE DRIVING ON THE INTERSTATE HIGHWAY WITH NO OTHER TRAFFIC AROUND THE PANORAMIC SUNROOF EXPLODED. THERE WAS A SOUND LIKE A GUNSHOT AND THEN A RUSH OF AIR INTO THE DRIVER/PASSENGER COMPARTMENT. THANKFULLY I HAD THE INTERIOR SHADE (PANEL) CLOSED AND WAS NOT RIDDLED WITH BROKEN GLASS.
Mar 16, 2019
ELECTRICAL SYSTEM,ENGINE
3 complaints
The car is literally burning through oil so bad every other week I am putting more in, the electrical system continues to fail and shorts, the motor sounds like it is ticking now due to the oil consumption.
Jul 09, 2025
Engine is burning oil at a high rate have to add at least three quarts twice a week and headlights and brake lights got out twice a month
Oct 14, 2024
My car has been at the dealership since February 10th. The dealer has been giving me the run around. Didn’t have any transportation for over two months and car hasn’t moved since the day I dropped it off. I’m really getting impatient, as I am making monthly payments on a car that I can’t even use. Nearing four months and I’m totally lost on what to do. Thank you for any assistance
May 26, 2022
ELECTRICAL SYSTEM,UNKNOWN OR OTHER
3 complaints
In case of a vehicle lockout and keys are locked in the trunk when car is opened by locksmith there is no way to unlock the trunk from inside of the car the locks become disabled and you have to reset the master switch very inconvenient for emergencies. There is no trunk release or emergency Button to open the trunk from inside the vehicle. 2018 kia optima lx
Mar 05, 2024
2018 KIA OPTIMA EX. SOMETIMES HESITATES WHEN TRYING TO START, UNTIL TODAY. ALL LIGHTS ON DASH LIT UP BUT NO IGNITION. I TRIED SEVERAL TIMES, THEN STEERING AND BRAKE PEDAL LOCKED UP AND I HEARD CLICKING NOISE. HAD SOMEONE JUMP MY BATTERY AND THE CAR STARTED UP, BUT WHEN I TURNED IT OFF, IT WOULD NOT START AGAIN. NOTHING WAS LEFT ON ALL NIGHT, CAR WAS LOCKED AND UNLOCKED WITH HANDLE. I AM CONTACTING THE DEALER THIS AFTERNOON TO SEE HOW THEY HANDLE THIS.
Oct 22, 2020
THIS HAS OCCURRED ON 3 TIMES SO FAR. I WAS AT A GAS STATION FILLING UP THE TANK, THE KEY WAS IN THE IGNITION, THE CAR WAS IN PARK, THE ENGINE WAS RUNNING, AND MY CAR DOOR WAS CLOSED. WHEN I FINISHED GETTING GAS, I TRIED TO OPEN THE DRIVER SIDE DOOR AND IT WAS LOCKED. ALL DOORS WERE LOCKED. I WAS 20 MILES FROM HOME FORTUNATELY SOMEONE WAS AT HOME TO BRING A SPARE KEY FOR ME TO OPEN THE TRUNK, PUSH THE REAR PASSENGER SEATS DOWN AND CLIMB THRU TO THE FRONT TO TURN THE IGNITION OFF AND UNLOCK THE DOOR. THE SAME SCENARIO OCCURED THIS PAST WEEK WHEN I HAD GONE OUTSIDE TO WARM UP MY CAR BY TURNING ON THE DEFROST FOR THE FRONT AND BACK WINDOWS. ONCE AGAIN, THE ENGINE WAS RUNNING AND I CLOSED THE DOORS. ONCE THE CAR WAS WARM, I TRIED TO OPEN THE DOOR AND IT WAS LOCKED. I HAD TO GO IN THE HOUSE TO GET THE OTHER SET OF KEYS, OPEN THE TRUNK PUSH THE BACK SEATS DOWN AND CLIMB THRU THE TO THE FRONT, TURN OFF THE IGNITION AND UNLOCK THE DOOR. THIS LAST OCCURENCE WAS ONCE AGAIN AT A GAS STATION, THIS TIME IT WAS LATE AT NIGHT, IT WAS 20 DEGREES OUTSIDE AND HAD TO WAIT FOR SOMEONE FROM MY HOUSE BRING THE SPARE KEYS. THE QUESTION I HAVE FOR MYSELF IS, WHAT AM I GOING TO DO IF NO ONE IS AT MY HOUSE TO BRING THE EXTRA KEY. SURELY, I DONT PLAN TO BRING TWO SETS OF KEYS WITH ME. EVERYTIME I'VE TAKEN IT TO THE KIAOFDAYTON SERVICE CENTER, I AM TOLD THEY CANNOT RECREATE THE ISSUE. I'VE TAKEN IT TO THE DEALERSHIP TWICE. IT'S VERY FRUSTRATING. IN EVERY INSTANCE THE CAR WAS IN PARK, THE ENGINE WAS RUNNING, AND THE DOORS WERE UNLOCKED WHEN I HAD EXITED THE VEHICLE. WHEN I ATTEMPTED TO GET BACK IN, I COULD NOT BECAUSE THE DOORS HAD LOCKED BY THEMSELVES.
Jan 05, 2019
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE
3 complaints
Was driving on the interstate. The only light on was the ABS light and the car started smoking. Had to come to a stop as they were sparks coming from out under the car through it into park at around 15 mph steel jumped out of the car and within a minute the car was fully engulfed in flames.
Oct 20, 2023
Rough idle, chugged along before killing engine power. Has happened a couple of times. No check engine light has come on
Sep 27, 2022
Me and my family just returned home from the laundry mat and took 2 children inside our house and turned around for our belongings and clothing/bedding for the family as the wheels spun out being followed by a silver hyundaii. Just a matter of seconds to 2 minutes. The keys were not in the vehicle. 2 childrens carseats and almost ALL of my family's belongings were stolen inside of the vehicle. 2018 kia optima dark slate grey in color with dark tinted windows and sun strip at the top of windshield, black rims. CR 21077 IL LICENSE PLATE This seems to be an ongoing issue with kia and hyundaii vehicles being stolen and somehow im still not being offered a loaner vehicle with full coverage insurance
Jul 06, 2022
STEERING
3 complaints
Turned on my car and steering wheel was stuck , it didn’t turn, turn the engine off and back on and it went back to normal.
Nov 21, 2021
TL* THE CONTACT OWNS A 2018 KIA OPTIMA. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE POWER STEERING LOCKED IN MID TURN WITH THE POWER STEERING WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT CALLED PERRIS VALLEY KIA (707 E 4TH ST, PERRIS, CA 92570) AND WAS INFORMED THAT THE ONLY WAY TO REPAIR THE DEFECT WAS TO DUPLICATE THE FAILURE. THE CONTACT WAS ADVISED TO LEAVE THE VEHICLE WITH THE DEALER FOR AN EXTENDED PERIOD. THE CONTACT DECLINED THE OFFER. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 35,000.
Jan 12, 2021
THE STEERING WHEEL DOESN'T LOCK WHEN I PUT IT IN PARK, TURN THE CAR OFF AND REMOVE THE KEY.
Mar 06, 2020
ENGINE,FUEL/PROPULSION SYSTEM
2 complaints
My 2018 Kia Optima LX began using excessive oil (>3 quarts/1000 miles) just over 100K miles. I researched and found that the Theta II engine in my car is known for this. When I took my car to dealership (Stokes Hodges Kia, North Augusta, SC), with the check engine light on, they told me me plugs were fouled (they were just replaced 1 yr prior), cylinder 3 misfiring, and that I needed to pay a few thousand dollars to have repaired. When I asked them to guarantee the soaking process they recommended, they responded that they couldn't, that it "only worked 80% of the time." I have the KSDS download since 2019 and asked them to follow the guidelines of their TSB ENG 222 for the class action lawsuit and start a 1000 mile oil consumption test. they refused, basically telling me the only way to get a new engine from Kia, since my car is over 100K miles, is to drive it until the engine seizes. I expressed my fear for personal safety, but they wouldn't help me. I am original owner and have all services, etc documented. I called Kia customer affairs, then was told only local dealership could help. they stuck me in a loop between them without helping. Please help me.
Jul 18, 2025
purchased my car in june of 2019. Ive scheduled regular oil changes and maintenance until june of 2020 where the engine light began to flicker and the car would shake. I took to Koons Kia owings mills md and it was repaired. Next year same thing. Oil compression issues all year round where i have to keep putting oil in. Now my car starts and shakes violently. the kia service modurator on the car indicated there were an engine issue. I cannot keep dishing money into this car with so many recalls (current fuel pump recall and anti theft issue) is also included. Please help
Aug 19, 2023
SEAT BELTS
2 complaints
Passenger seat belt goes off when no one is sitting there.
Feb 22, 2025
THERE IS A PROBLEM WITH THE PASSENGER'S SEAT BELT. OFTEN TIMES THE ALARM GOES OFF WHEN NO ONE IS SEATING IN THE SEAT ESPECIALLY WHILE DRIVING. ALSO, WHEN SOMEONE IS SITTING IN THE SIT IT OVERLY LOCKS NO MATTER THE SPEED OF THE CAR, THUS CAUSING THE PASSENGER TO HAVE TO UNDO AND REDO THE SEAT BELT WHILE DRIVING. THE SEAT BELT HAS ITS OWN MIND.
May 31, 2019
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE
2 complaints
My engine burns oil very bad. Black smoke comes out of my tailpipe and I burn through 5 quarts in less than a thousand miles. I just got my oil changed two weeks again and I just had to add more oil to my car bc it was empty. I’ve had to replace the spark plugs twice due to soot build up. I can’t afford a new car I’m 17 and can barely afford the maintenance let alone a whole new engine. Have spoken to many mechanics and they all say the same thing “it’s a Kia it’s gonna burn oil” ITS A KNOWN ISSUE. And yet Kia will not resolve it bc they don’t want to spend their own money to fix their mistake. I got an estimate for a new engine which is basically crucial and it’s over three grand. No matter where I take it everyone always says the same thing- to get rid of it before it’s too late. But I simply cannot afford to do that and I know my car is not the only one with this issue so many other people with the same car/engine have the same issue. 2.4 L GDI !!!!! I wish someone would have warned me before buying Kia. A recall to fix this issue is needed now. I lose control of the speed sometimes. I will keep my foot at a set position on the throttle and the engine will take off because it’s jumping to the usual power it should have. ( it has reduced power most of the time bc of the struggling engine) sometimes on the highway I’ll get a sudden burst of power and I have to let off the accelerator. Not safe at all
Jan 20, 2025
Car will NOT go pat 60mph and i haven’t had this car just over 6 months. And the camshaft sensors are gone out. Smoke comes out the pipe when mash on gas…. It is really a bad vehicle. And Southeast auto refuses to fix it. I really honestly think the motor is bad in it. Because I been having issues with it since I had it
Sep 20, 2023
STEERING,ENGINE
2 complaints
Check engine light began flashing halfway down the highway. Oil changes and maintenance are done regularly. Vehicle handling seemed to be unsafe. Vehicle would not accelerate. Had inspection done in September.
Nov 25, 2024
We would like to know what Kia is planning to do to address the fact that Kia built a car without the basic immobilizer circuit making it very easy to steal. Over the last few months, local and national news reports, as well as many social media sites, have reported on this security flaw which likely emboldens others to attempt a theft of a Kia and/or Hyundai. As I do not live in Milwaulkee, I would like to know how the company will fix this problem for the rest of us. It will not be restricted to just one city. There are numerous articles by victims that have detailed how their car theft cost them thousands of dollars in insurance deductibles, rental cars, and repairs. Many of the articles explain how thieves as young as 12 years old are able to still these cars in under a minute in broad daylight and driving recklessly creating a serious safety hazzard. Please advise what Kia will do to negate this serious security flaw.
Dec 12, 2021
FUEL/PROPULSION SYSTEM
2 complaints
THE FUEL PUMP HAS AN ACTIVE RECALL. TOOK ITIN TO DEALER AND WE ARE BEING ADVISED KIA WILL NOT COVER THE COST. THEY HAVE AN ARTICLE OUT THAT CLEARLY STATES THEY WILL COVER THE COSTS. THE CAR WREAKS OF THE SMELL OF GAS AND WE ARE SCARED IT WILL CATCH FIRE.
Nov 01, 2023
Leaking gas at the firewall when running.
Aug 25, 2023
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM
2 complaints
I'm reporting these issue pertaining to the engine within the first 3 weeks AFTER the engine replacement recall was serviced and completed. The vehicle was exhibiting the same defects and major health and safety hazards as before the new engine. Intermittent engine failure, even worse, while i was trying entering the hwy at speeds of 45-50 miles it jerked very violently and loss total power while vehicles were behind me nearly rear ended. Prior to this I reached out multiple times to have it serviced at again. The original service department didn't respond, so I called other service departments and was told it needed to be serviced by the original dealership/service department that replaced the engine. I had the vehicle in normal working conditions a few days before it began exhibiting the same problems as before the engine replacement. It was in operable condition but still stalling and refusing to crank unless primed, until it ultimately just would not crank at all and is back in the same condition it was before the new engine but it is not locked up currently. The time frame and Milage between first experiencing the issues to now, March 2023-64745 Started shuddering, loss of power while driving, but would crank right back up without issues. Happened a few times, charged up battery thinking is was am electrical issue. April 2023 More frequently the issues occurred, still same severity levels. May 2023 Began happening every time at an idle, whether I was at a fast food in drive through placing an order, or to wash the car. Every time at an idle this would happen, and would take a few times of trying to start the vehicle and after about 5 seconds of cranking it would catch and work. I began placing the vehicle in neutral while at idle and it would assist In the stalling out sometimes. After a few days of this it refused to crank due to the engine locking up. Milage at this time was 68048. Aug 2023-New engine, drove about 2k miles-70207 current
Aug 08, 2023
WHEN DRIVING THIS VEHICLE RATTLES AND SHAKES IT HAS A BURNING SMELL/GAS SMELL. IT CUTS OFF WHILE DRIVING. LOOSES OIL.OIL AT LOW LEVEL BEFORE DUE. THIS MAKE AND MODEL IS NO LONGER BEING MANUFACTURED. IT HAS A KNOWN HISTORY OF ENGINE PROBLEMS. WHY WERE CONSUMERS ALLOWED TO BUY THIS CAR. PROBLEMS ARE ACTIVE AND ONGOING. STARTED ABOUT A YEAR OR CLOSE TO A YEAR AFTER PURCHASE. IT IS A LEMON . THE DEALER WANTS TO DIAGNOSE THE ENGINE, BUT THEY ALREADY KNOW THE ENGINE IS NO GOOD.
May 14, 2021
VEHICLE SPEED CONTROL,ENGINE
2 complaints
Knock sensor detection system. Driving and all the sudden felt like it hard down shifted… car behind me almost hit me. Engine light started flashing so I pulled into autozone and plugged it in and got the knock sensor code. It’s had oil consumptions issues for a while. It’s so dangerous to drive with limited power and speed
Jun 19, 2023
Car smoking white , and driving slow after I hit a pothole when it was raining hard.
May 29, 2023
UNKNOWN OR OTHER,SERVICE BRAKES
2 complaints
3 TIMES INTERMITTENTLY BRAKE PEDAL ON MY 2018 KIA OPTIMA FROZE AND TO IT WONT BRAKE. NO LIGHTS CAME ON DASHBOARD. I HAVE ONLY 22.000 MILES ON IT. I TOOK THE CAR TO NEAREST KIA DEALER TWICE. ACCORDING TO THEM THEY ARE UNABLE TO DUPLICATE THE PROBLEM AND COMPUTER NOT READING ANY ERROR CODES VEHICLE UNSAFE TO DRIVE
Jan 22, 2020
RANDOMLY BRAKE PEDAL ON MY KIA OPTIMA FREEZES AND IM UNABLE TO APPLY AND STOP VEHICLE IT HAPPENED TWICE ONCE IT HAPPENED ON HWY AND ONCE ON CITY STREET. CURRENTLY VEHICLE IS IN DEALERSHIP SINCE JAN 2ND AND DEALER STATING THEY ARE UNABLE TO DUPLICATE ISSUE
Jan 09, 2020
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
On August 26, 2025, I brought my 2018 Kia Optima Plug-In Hybrid to an authorized dealer for recall SC218 (engine inspection and KSDS software update). The dealer verbally stated both SC218 and SC278 recalls were completed, and the repair order (RO #XXX) lists them as performed. In September 2025, Kia America emailed me showing recall SC218 still open, and a warranty coverage report dated September 26, 2025, again listed SC218 as unclosed. On November 4, 2025, NHTSA’s official VIN lookup confirmed the recall remains “Incomplete.” On October 21, 2025, Kia America emailed me under Case #XXX stating that SC218 was “confirmed completed” and that the dealer performed a software update to the ECU, referencing RO #XXX. However, NHTSA’s database still lists recall SC218 as incomplete. This contradiction between Kia America’s internal record, the dealer’s invoice, and the federal NHTSA database raises a serious safety concern that the recall inspection or software update was never actually performed or was never reported correctly. I have requested written proof and diagnostic data (Battery SOH report) multiple times but have not received them. If accurate, this means I was led to believe my vehicle’s engine-safety recall had been repaired when federal records still list it as open. I am requesting NHTSA to review this reporting discrepancy, ensure Kia America and the dealer produce verifiable proof of completion, and confirm that the federal record is corrected. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Nov 05, 2025
VEHICLE SPEED CONTROL,SERVICE BRAKES,FUEL/PROPULSION SYSTEM
1 complaint
Purchased car about 4 months ago, before warranty ran out, the shop looked at it told me it was fine, it wouldn't accelerate. Few weeks later same issue but all my oil was gone, they found 11 things wrong with the vehicle, told me warranty wouldn't take care of it unless the engine blow up. The salesman Scottie Mitchell told me check Kia for recalls, called Kia 3 recalls, they were trying to finance another car higher, back wanted to know why the dealership didn't know about recalls, Kia place did call a Robert. One of the owners did know about recalls, why dealership didn't pass them on. They trying to sell me a higher vehicle to keep cover the cost of the one I got 1st
Jul 10, 2025
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE
1 complaint
There is already the theta 2 campaign on my Kia optima but Kia is not upholding their warranty for a new engine. Kia customer care told me that untill my car actually throws a rod then they will not fix it. So I could be doing 80 down the freeway and jeopardize not only my safety but everyone else's for them to uphold their lifetime warranty? Also upon doing further investigation and I don't know how many cars this pertains to but the fuse box in my 2018 actually belongs to a 2016 which if you look it up yes they are comparable but don't offer all the same functions or power that my 2018 needs to run I fully believe Kia knew this when they were being built on the factory line because it just so happens that there is about 6 different versions to the pcb relay that can fit from a 2016 to a 2020 k5 but for some odd reason every car got something different why?
Jun 04, 2025
ENGINE AND ENGINE COOLING,ENGINE
1 complaint
The contact owns a 2018 Kia Optima. The contact stated that while his wife was driving at an undisclosed speed, the vehicle went into LIMP Mode, and the check engine warning light was illuminated. The vehicle was restarted; however, the failure recurred while driving. The vehicle was taken to the dealer, where it was diagnosed and determined that the spark plugs had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred while driving. The vehicle was towed to the dealer, where it was diagnosed that the engine had failed and needed to be replaced. The contact was informed by the dealer that the repair could not be covered due to the poor maintenance of the vehicle; however, upon providing all the maintenance records, the dealer informed the contact that the vehicle could not be repaired unless the engine had fully seized. The dealer offered a trade-in offer; however, the contact declined the offer. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 111,000.
Nov 26, 2024
POWER TRAIN,ENGINE
1 complaint
The contact owns a 2018 Kia Optima. The contact stated while driving approximately 40 MPH, the accelerator pedal was depressed; however, the vehicle failed to respond as needed. The contact stated that there was an abnormal growling sound coming from under the floorboard, and the engine was making an abnormal knocking sound. The contact stated that the RPM gauge was revving high while depressing the accelerator pedal; however, the vehicle failed to respond. The contact pulled over and turned off and restarted the vehicle; however, the vehicle was not running normally. The contact stated that the failure was a recurring failure. Additionally, the contact stated that vehicle was consuming approximately one quart of engine oil per week and the transmission was hesitating and was making the vehicle jerk while shifting gear. The contact had taken the vehicle to an independent dealer, but the vehicle was not diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was 76,270.
Oct 01, 2024
SUSPENSION,ENGINE,LANE DEPARTURE
1 complaint
I purchased my 2018 Kia Optima directly from the dealership, brand new. I've had the vehicle since then and have followed all of the warranty guidelines and only went to them for oil changes & other maintenance issues. Since February 2023 I've noticed where i've been having oil loss, but no sign of an oil leak. When I first noticed this, I would take a turn and my oil light would come on. I'd check the oil and it'd be low so I would refill my oil. However, this was happening 2 months after my last oil change which wasn't normal. I took the vehicle to Kia and they did an "Engine Consumption Test" where I had to drive for 1000 miles with a seal on the drain plug. After the 1000 miles, I came back and I was only 1/2 quart low. According to Kia it didn't meet the guidelines for engine replacement so they topped off my oil and I left. About 2 weeks after, my oil light came back on. I went back to Kia and spoke with the Shop Manager who stated I was 3 1/2 quarts low! He added oil to my engine and we did another round of the consumption test. When I came back in after that, I was 2 quarts low so that meant I qualified for a "Consumption Cleaning". They kept my vehicle overnight & I had to drive another 1000 miles. When I came in after my 1000 miles again I was only 1/2 quart low and therefore Kia said there wasn't an issue. I've reached out to multiple auto repair shops who state it is a Kia problem, that the engine is using it and processing it out of the exhaust. I don't know what else I have to do in order for Kia to honor the 20 year, 200k warranty. I have all documentation for all of my oil changes and from the consumption tests also.
Oct 16, 2023
VEHICLE SPEED CONTROL
1 complaint
What component or system failed or malfunctioned, and is it available for inspection upon request? ******Speed Control- Vehicle will stall while on road/ highway causing rear vehicles to brake. How was your safety or the safety of others put at risk? *****Several times I was forced to pull over to side lanes to avoid being rear ended. *****Has the problem been reproduced or confirmed by a dealer or independent service center? I have called dealership several times in regards to this issue, all I was told was to do not use A/C or heater as that will make the vehicle lose power. Refused to conduct was full inspection of vehicle. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? *****No, no it has not been inspected Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? *****No warning lamps not symptoms of the problem prior to the failure.
Oct 02, 2023
ENGINE,ENGINE AND ENGINE COOLING
1 complaint
My engine is under a million mile warranty because it burns 1qt oil/1,000 miles. My engine burns just under 2 quarts of oil about 800 miles. For long trips, this is very unsafe because my engine is going seize or burnout on the highway at some point. This will put my life and possibly that of other drivers at significant risk.
Sep 27, 2023
AIR BAGS,UNKNOWN OR OTHER,ENGINE
1 complaint
Unknown
Sep 26, 2023
VISIBILITY/WIPER
1 complaint
Was driving vehicle on freeway, around 65 mph, smooth road, no bumps, no indication of any road debris and suddenly heard a loud cracking/exploding noise which was extremely startling. After hearing some outside wind noise and the sound of glass pieces rattling, I realized that the glass panoramic sunroof must have broken somehow. Luckily I had the interior fabric shade closed, so no glass pieces entered the cabin to injure anyone. After getting out of the car, I could see around a 12 inch diameter hole in the sunroof glass. The remaining glass that was still attached was full of cracks. I have created a case with Kia Consumer Affairs and waiting to hear back from them. The vehicle has not received any outside inspection as of yet for this incident. There was no prior warning to this issue, no creaking noises or visible cracks.
Jul 10, 2023
STEERING,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
High injector fuel pump top engine mount went out at 68000 miles. It caused the vehicle to stall and lose power and basically cut the car off while driving.
Jun 06, 2023
POWER TRAIN,VEHICLE SPEED CONTROL,UNKNOWN OR OTHER
1 complaint
Ever since I got my car I’ve had black oil since the start . Second my car breaks on its own at times 3rd my car system keep breaking down as the sparks leaking in some where has this issue since bought it 2 years ago low miles
Jun 01, 2023
VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
-Knock Sensor Detection System - ECU Logic Improvement - I Was driving with my infant son in the backseat. I was going 70 mph when my car started rapidly losing speed. This happened again with just myself after receiving the car from mechanic. There was heavy traffic and I had to swerve to avoid being hit by an 18-wheeler. - I can see on the website where I received the car from, there is a recall for my exact make and model with the same code but they say there is no recall for my specific car. - The check engine light started flashing and Kia Systems starts talking.
May 31, 2023
ENGINE,ELECTRICAL SYSTEM
1 complaint
The contact owns a 2018 Kia Optima. The contact stated that the vehicle was sputtering while being started. The contact stated that the vehicle also sputtered while driving at various speeds, and while reversing. The check engine warning light was illuminated. The vehicle was taken to the dealer and the contact was informed that oil was getting onto the spark plugs and ignition coils. The spark plugs and ignition coils were replaced; however, the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,000.
May 17, 2023
ENGINE,FIRERELATED
1 complaint
The car caught on fire in our driveway
Mar 08, 2023
STEERING,ELECTRICAL SYSTEM,ENGINE
1 complaint
Just Started Having Problems On It’s On The Car Only Has 38,000 Miles
Sep 26, 2022
EXTERIOR LIGHTING,FUEL/PROPULSION SYSTEM
1 complaint
Trying to cut off and jerks when stopping vehicle
Sep 02, 2022
FUEL/PROPULSION SYSTEM,LANE DEPARTURE
1 complaint
ECM telling fuel pump to put too much gas, causing exhaust into cabin, unnoticed while in car, but hair and cloth reak of exhaust and getting headaches. Reduced mileage by 20+mpg from 30+ to 11mpg. BSD- no lights or codes thrown by 3rd party, but dealer said there was a code on the BSD. BSD was not working and no codes appeared. NO LIGHTS OR CODES FOR FUEL ISSUE OR BSD, but dealer said there is a recall that I cannot find for fuel and said there was a code for BSD, but it didn’t pop up on my husband’s code reader previously.
Aug 05, 2022
POWER TRAIN,ENGINE,LANE DEPARTURE
1 complaint
Engine overhead and stopped working in addition to it consuming massive amounts of oil without physically putting oil in. I've went to 2 dealerships who refuse to provide me with a new engine even though I'm covered under the engine extension warranty due to me having the knock sensor update done. I am now involving my attorney and will go to the news channels to inform how kia manufacturer has become a disgrace with not providing quality engines in their vehicles and don't want to be responsible for it. there's already a settlement going on for kia optimas and other cars they've made because of faulty engines. They can better believe I'm coming for them next with a lawsuit.
May 09, 2022
POWER TRAIN,UNKNOWN OR OTHER
1 complaint
I purchased my Kia optima brand new I believe it had 7 miles on it when I purchased it, shortly after it was purchased it started having a problem with the transmission, I would go to takeoff and it was lunch and jerk pretty hard to where it was very noticeable. I took it into the shop they thought that it was something a computer program could reset they performed that I did not fix it, I don’t drive my Kia very much I barely have 25,000 miles on it right now I am a real live in care provider so I don’t drive very much my job is at home. I have taken the car into several dealerships repeatedly to have it fixed, IA really was at a loss and did not know what to do because I had taken it to two different dealerships and the problem was never resolved. I contacted an attorney they got nowhere because apparently I needed to take my car in one more time within a timeframe for them to be able to do anything about it? And any right, still to this day the car does the same thing it’s been in the shop four or five times for this problem. One time I took it to Kia and Elk Grove they kept it looked at it said they couldn’t find the problem. Every time I’m renting a car paying for the insurance going through the inconvenience of renting a car paying extra insurance etc. just to have nothing done with my car. When I went to pick up my car from the Elk Grove dealership I threw a fit because I was tired of it and I said look somethings wrong with the car I’m not a mechanic I can’t tell you what it is but I need this car fixed, the service manager came out and said I’ll take a a ride with you and we’ll see if maybe I can see what the problem is we didn’t even get out of the parking lot and it jerked so hard at the service manager noted it in the file had me drop it back off and leave it it’s still wasn’t fixed. I took it in again after that the new service manager took it on an hour drive on the freeway hooked up to a computer with Kia and of course it didn’t do anything while h
Feb 10, 2022
ELECTRICAL SYSTEM,SEAT BELTS
1 complaint
While driving, car in motion, Front Passenger Seat belt Audio Warning Periodically goes off without reason. Indicating seat is occupied & seat belt needs putting on. When seat has been unoccupied / clear from any type of weight on seat to trigger sensor. Audio warning will continue until seat belt is latched over the empty seat. Local KIA Service Dept was informed & could neither confirm or deny its faulty behavior for it did not present itself during time of service. They said, wiring looked fine but did no further testing. To be honest they showed no interest into seeing any real importance for my concern for them to feel any further investigation was warranted. Its happened again twice since that service visit be it last incident Aug 7th. My concern is.... if there is faulty wiring or sensor signals being crossed somewhere, whats to say there is a passenger or no passenger in that seat, to ensure the correct signal is getting to the passenger side air bags of when to correctly deploy if an accident should happen with passenger in seat? This situ is only recent starting about a year a go. So something has changed from being fine for 2 yrs up to the last year that's now showing some kind of seat belt / sensor failure. I'm unfamiliar with how that wiring system works & linked within it for me know what other things I might need to pay more attn to, looking for other signs that could be saying is direct cause to the prob. Unsure if this a simple solution or is something that others are experiencing with this year & model car & poss be a Manufacturer Part Default
Sep 05, 2021
SERVICE BRAKES,ENGINE
1 complaint
LOUD RATTELING WHEN CRANKING, CONTINUOUS RATTELING WHEN ACCELERATING UNDER DRIVERSIDE FLOOR BOARD MADE A CLUNK SOUND WHEN APPLYING BRAKES AND NOW ITS LIKE A SLIDING SOUND BEFORE IT CATCHES BRAKE
Jan 30, 2021
STEERING,ELECTRICAL SYSTEM,SERVICE BRAKES
1 complaint
I HAVE 63,826 MILES ON MY 2018 KIA OPTIMA S AND I DROVE IT TO THE STORE AND ALL MY LIGHT ON THE DASH CAME ON WHEN I WOULD COME TO A STOP AND MY POWER STEERING WOULD GO OUT AND ABOUT CAUSE ME TO WRECK. I WAS TOLD THAT IT WAS MY ALTERNATOR BUT AFTER GETTING A NEW ALTERNATOR I THEN DROVE IT TO GET DINNER A FEW DAYS LATER WHEN THE SAME THING STARTED HAPPENING AGAIN AND MY POWER STEERING KEPT GOING OUT AGAIN. I HAVE TWO NEWBORN BABIES, A 5 YEAR OLD AND A 10 YEAR OLD IN THE VEHICLE WITH ME AND HAD I WRECKED WHEN THE POWER STEERING WENT OUT IT COULD HAVE BEEN A BAD SITUATION.
Dec 12, 2020
AIR BAGS,SEAT BELTS
1 complaint
I WAS IN A CAR ACCIDENT AS I WAS DRIVING ON I65 AND MY AIR BAGS DID NOT DEPLOY AND MY SEAT BELT DIDN'T LOCK UP
Nov 25, 2020
TIRES
1 complaint
ON NOVEMBER 7 WHILE DRIVING ON A FREEWAY IN SC I HAD A CATOSTROPHIC FAILURE IN MY FRONT LEFT TIRE AT 55 MILES PER HOUR. FORTUNATELY I WAS ABLE TO EXIT SAFELY AND GET MY VEHICLE OFF THE ROAD. THE TIRE WAS FILLED TO MANUFACTURER PSI AND WAS DRIVEN ONLY 13,151 MILES. THE SIDEWALL WAS BLOWN OUT. I DID NOT HIT ANYTHING TO CAUSE THIS FAILURE THE TIRE IS A KUMHO 215 R17 94 V. MY VEHICLE IS A 2018 KIA OPTIMA S. I BELIEVE I SHOULD HAVE A FULL REPLACEMENT FOR THIS FAILURE.
Nov 08, 2020
ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES
1 complaint
WHEN I GO TO ACCELERATE FROM A STOPPED POSITION; THE CAR STALLS AND TURNS OFF AND THEN IT TURNS ITSELF BACK ON. ADDITIONALLY, WHEN I DRIVE OVER 50 MPH THE CAR/TIRES START TO VIBRATE.
Sep 22, 2020
AIR BAGS,ENGINE
1 complaint
TL* THE CONTACT OWNS A 2018 KIA OPTIMA HYBRID. THE CONTACT STATED THAT WHILE DRIVING THE VEHICLE STARTED TO MAKE AN UNKNOWN NOISE, THE CONTACT COSTED TO THE SIDE OF THE ROAD AND CHECK UNDERNEATH AND AROUND THE VEHICLE TO SEE WHERE THE NOISE WAS COMING FROM BUT DID NOT FIND ANYTHING. THE CONTACT STATED THAT THE AIR BAG WARNING LIGHT ILLUMINATED. THE VEHICLE STATED THAT SHE WAS ON A WAY TO TAKEN THE VEHICLE FOR AN OIL CHANGE. THE TECHNICIAN HEARD THE NOSE AND INFORMED THE CONTACT THAT HE WAS WOULD NEED TO CHECK EVERYTHING BEFORE HE CAN COMPLETE AN OIL CHANGE. THE TECHNICIAN REMOVED THE PROTECTIVE SHIELD UNDERNEATH THE VEHICLE AND NOTICED OIL WAS ALL OVER AND METAL SHAVING WAS IN THE OIL AROUND THE OIL PRESSURE SENSOR. THE TECHNICIAN INFORMED THE CONTACT IT MAYBE WAS COMING FROM THE ENGINE. THE CONTACT CALLED NAPLETON'S MID RIVERS KIA, 4955 VETERANS MEMORIAL PKWY, ST PETERS, MO 63376, AND INFORMED THEM OF THE FAILURE AND THE CONTACT WAS INFORMED TO SCHEDULE AND APPOINTMENT. THE CONTACT STATED THAT SHE HAD THE VEHICLE TOWED TO AUFFENBERG HYUNDAI, 1300 CENTRAL PARK DR, O'FALLON, IL 62269, AND THE TECHNICIAN COULD NOT FIND A FAILURE. THE CONTACT WAS INFORMED THAT THE MANUFACTURER WOULD SEND AND ENGINEER TO INSPECT THE VEHICLE. THE VEHICLE WAS NOT REPAIRED YET. THE CONTACT MENTIONED THAT SHE WAS EXPERIENCING ELECTRIC SHACK FROM THE STEERING WHEEL AND THE ACCELERATOR PEDAL. AND THAT THE ACCELERATOR WAS LOSING PRESSURE AND THAT SMOKE WAS COMING THROUGH THE VENT OF THE CABIN. THE FAILURE MILEAGE WAS APPROXIMATELY 27,573.
Sep 03, 2020
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,UNKNOWN OR OTHER
1 complaint
WHILE DRIVING AT NIGHT LIGHTS WENT COMPLETELY OUT ON HIGHWAY WHILE IN AUTO MODE
Aug 02, 2020
STRUCTURE,WHEELS,SERVICE BRAKES
1 complaint
I WAS DRIVING ON A HIGHWAY AND STARTED TO HEAR AN NOISE FROM THE FRONT RIGHT WHILE I WAS ON A ROAD TRIP. HAD BEEN DRIVING FOR ABOUT 45 MILES AND MOVED OVER ONE LANE TO THE RIGHT AND FRONT RIGHT TIRE BLEW - HAD LESS THAN 16,000 MILES ON CAR. I GOT THE TIRE REPLACED AT A KIA DEALERSHIP AND WHEELS ALIGNED. THEN,DRIVING ON A MAIN ROAD, 45 MPH A FEW WEEKS LATER, GOT TO A PASSING ZONE, AND PASSED THE CAR IN FRONT OF ME AFTER ACCELERATING TO 65 DURING THE SHORT PASSING ZONE. AFTER PASSING THE CAR I TAPPED THE BREAKS TO SLOW BACK DOWN TO 45 AND THE TRACTION, BRAKE, AND TMZ LIGHTS ALL CAME ON. WHEN BRAKE ENGAGED, CAR DID NOT BRAKE AS NORMAL AND A ODD NOISE LIKE A GRINDING SOUND COULD BE HEARD COMING FROM THE FRONT RIGHT WHEEL AREA. TOOK THE CAR INTO DEALERSHIP, THEY RAN DIAGNOSTICS, SAID IT WAS A 'MISS-TRIPPED' SENSOR AND CLEARING IT CORRECTED THE ISSUE. I DROVE MY CAR LESS THAN 5 MILES DOWN THE ROAD AND ENGAGED THE BRAKE ON A 40 MPH ROAD AT A STOP LIGHT, ALL THREE LIGHTS CAME RIGHT BACK ON. HAD TO CALL AND TAKE CAR BACK IN AND THEY ENDED UP KEEPING MY CAR SEVERAL DAYS BEFORE SAYING I HAD A BAD TIRE SENSOR, BUT CAR WAS SAFE TO DRIVE. DROVE AGAIN, TO A NEIGHBORING CITY AND HAD BEEN DRIVING ABOUT 40 MILES AND FRONT LEFT TIRE BLEW. GOT IT TOWED BACK TO THE DEALERSHIP, WHO SAID TIRES BLOWING HAD NOTHING TO DO WITH CENSOR. GOT TIRE CHANGED AND ROTATION. PICKED UP CAR AND TIRE PRESSURE LIGHT CAME ON -LOW PRESSURE. NITRO WAS ADDED BY DEALERSHIP AND LIGHT WENT OFF. TURNED MY PRESSURE READER ON AND 2 MILES DOWN THE ROAD THE CAR WENT FROM 37 TO 45 PSI. I THINK BAD SENSOR IS CAUSING OVER INFLATING OF TIRES AT THE DEALERSHIP LEADING TO BLOWN TIRES.TESTED PRESSURE WITH SEPARATE PRESSURE READER AND TOO HIGH SO LET SOME AIR OUT, DROVE DOWN A HIGHWAY AT 50 MPH AND CAR 'BOTTOMED OUT' ON A ROLLING DIP IN THE ROAD SCRAPPING THE PLASTIC PROTECTION PIECE BEHIND THE FRONT RIGHT TIRE UNDER THE CAR
Feb 06, 2020
STEERING,ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE
1 complaint
I HAVE NEVER HAD ANY ISSUES WITH MY CAR, I GET MAINTENANCE AS SCHEDULED SO IT'S ODD THAT THIS IS EVEN HAPPENING. ON DECEMBER 6TH I WENT TO MOVE MY CAR. I CRANK THE CAR WITH NO PROBLEM. I NOTICED IT KIND OF HESISTATED SLIGHTLY, BUT CONTINUED ON WITH NO PROBLEM. WHEN I WENT TO PUT MY CAR IN REVERSE IN ORDER TO PARK IT STALLED AND ABOUT 5 OR 6 OF THE LIGHTS ON THE DASH CAME ON, THE STEERING WHEEL WENT HARD TO MANAGE/STEER AND AS 6 OTHER LIGHTS STARTED BLINKING, I COULD NO LONGER MANIPULATE MY WHEEL SO I ALLOWED THE CAR TO ROLL INTO THE SPOT BECAUSE I WAS ON A SLIGHT INCLINE AND PUT IT IN PARK. THE MOMENT I DID THAT THE CAR CUT OFF. IT WOULD NOT TURN OVER, IT WOULD NOT DO ANYTHING BESIDES CLICK WHEN I TRIED TO CRANK THE CAR AGAIN. I EVENTUALLY ASKED SOMEONE FOR A JUMP AND MANAGED TO MAKE IT HOME. THE NEXT DAY I GOT UP AND DROVE AS I NORMALLY WOULD AND THATS WHEN THE ELETRIC POWER STEERING WARNING LIGHT CAME ON. WHEN THAT LIGHT COMES ON THE CAR BECOMES HARD TO MANEUVER. THANKFULLY THAT TIME IT WENT OFF AND PROCEEDED TO DRIVE AS IT WOULD NORMALLY. THIS ISSUE HAPPENS UNEXPECTEDLY WITHOUT ANY WARNING. SO AT ANY MOMENT I COULD BE DRIVING AND THE CAR CAN STOP ON ME. I HAVE 4 KIDS AND LIVE IN A REALLY BUSY AREA SO EVEN THE THOUGHT OF THIS HAPPENING HAS ME SECOND THINKING EACH TIME I HAVE TO MOVE MY CAR!! I'VE SEEN MORE THAN ONE OF THE SAME COMPLAINT AND I NOTICE OUR VIN #'S ARE SIMILAR SO SOMETHING SHOULD REALLY BE DONE ABOUT THIS AS IT SEEMS THIS IS A TREND WITH THE YEAR, MAKE, AND MODEL OF THIS CAR.
Dec 07, 2019
STEERING,ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC)
1 complaint
HELLO I AM NYCHOLE AND IN OCTOBER OF 2017 I PURCHASED A BRAND NEW 2018 KIA OPTIMA . NEVER REALLY HAD ANY ISSUES WITH IT UNTIL FRI NOV 22. AS I WAS LEAVING FROM WORK MY CAR DID A VERY ABRUPT JERK THAT I ACKNOWLEDGED BUT DIDN'T THINK ANYTHING OF IT BECAUSE MY GAS LIGHT HAD JUST CAME ON. BUT TODAY WHICH IS SUNDAY MY CAR'S EPS (ELECTRIC POWER STEERING) LIGHT FLASHED. WEIRDED OUT I LOOK AT THE MANUAL IN THE GLOVE COMPARTMENT. AS I EASED INTO MY APARTMENT COMPLEX THE CAR DID THAT SAME JERK, THE STEERING WHEEL WENT HARD TO MANAGE/STEER AND 6 OTHER LIGHTS STARTED BLINKING( PARKING BREAK LIGHT,EPB LIGHT ,ABS LIGHT,ESC LIGHT ,BATTERY CHARGE LIGHT, AND THE MASTER MALFUNCTION LIGHT) . I COULD NO LONGER MANIPULATE MY WHEEL SO I PULL FORWARD ONTO A OPEN SPOT AND PUT IT IN PARK. THE MOMENT I DID THIS THE CAR CUT OFF. IT WILL NOT TURN OVER, IT WILL NOT DO ANYTHING BESIDES TICK. I HAVE BEEN GREAT WITH MAINTENANCE BECAUSE IT WAS EITHER FREE OR DIRT CHEAP SO I ALWAYS TOOK IT TO THE DEALERSHIP. I HAVE READ MORE REVIEWS OF PEOPLE GOING THROUGH SIMILAR THINGS. JUST IMAGINE IF I HAD MY CHILD IN THE CAR, ON THE INTERSTATE AND COULD NO LONGER CONTROL MY STEERING WHEEL OR THE CAR JUST DYING MID DRIVE ON THE INTERSTATE HOW DANGEROUS THIS ISSUE IS. MY CAR IS BASICALLY 3 YEARS OLD AND HAS LESS THAT 50 K. IT HAS NEVER BEEN WRECKED , TOWED OR DAMAGED STILL PRACTICALLY NEW. I HAVE ALSO READ SIMILAR RECALLS ABOUT ELECTRONIC ISSUES THAT ARE ONLY RELEVANT TO THE HYBRIDS . THE RECALL SEEMS SIMILAR.
Nov 24, 2019
STEERING,VEHICLE SPEED CONTROL,ENGINE
1 complaint
I PURCHASED A BRAND NEW 2018 KIA OPTIMA IN NOVEMBER 2018. I HAVE PUT APPROXIMATELY 22,500 MILES ON IT AND HAVE BEEN KEEPING UP WITH UPDATED OIL CHANGE MAINTENANCE PER THE SCHEDULE RECOMMENDED BY THE DEALER. ON SATURDAY 9/28 I DROPPED THE CAR OFF FOR A ROUTINE OIL CHANGE, AND AS I DROVE IT OFF THE LOT IT SPUTTERED AS IF IT WAS GOING TO DIE, BUT IT DIDN'T. THE CAR CONTINUED TO RUN AND IT GOT ME HOME. THE NEXT DAY, SUNDAY 9/29, IT DROVE WITHOUT PROBLEMS FOR ABOUT AN HOUR, BUT WHILE DRIVING THE CAR COMPLETELY POWERED DOWN AND STOPPED WORKING. IT WAS A TERRIFYING EXPERIENCE AS I WAS IN THE MIDDLE OF A MAJOR CITY ROAD AND ALMOST CAUSED A SERIOUS ACCIDENT. I PUT THE CAR INTO PARK AND WAS ABLE TO START IT BACK UP, AND I WAS LUCKY ENOUGH NOT TO BE STRUCK BY ANOTHER VEHICLE. THE DEALERSHIP WAS CLOSED AT THIS TIME SO I CALLED THEM FIRST THING MONDAY 10/1 TO REPORT THE ISSUE AND DROPPED IT OFF. THE DEALERSHIP IS CLAIMING TO BE UNABLE TO RECREATE THE ISSUE SO READY TO GIVE ME THE CAR BACK. THIS IS A HUGE SAFETY CONCERN AND I CAN'T BELIEVE WE AS CONSUMERS HAVE TO PUT OUR LIVES AT RISK TO WAIT FOR THE PROBLEM TO HAPPEN AGAIN BEFORE ANY RECOURSE CAN BE TAKEN. FROM MY RESEARCH ON THE INTERNET, IT IS VERY COMMON FOR THE DEALERSHIP NOT TO BE ABLE TO RECREATE THE PROBLEM SO UNABLE TO PROVIDE A FIX. KIA HAD 5+ YEARS OF ENGINE STALL PROBLEMS THAT WERE NOT ACKNOWLEDGED UNTIL MANY YEARS LATER, AND THE DEALERSHIP CERTAINLY WILL NOT VALIDATE THIS. FURTHERMORE, WHEN THE ENGINE STALLS, THE POWER STEERING AND BRAKES BOTH GO OUT, SO YOU HAVE NOTHING BUT PRAYERS TO RELY ON TO KEEP YOU ALIVE.
Oct 02, 2019
POWER TRAIN,UNKNOWN OR OTHER,ENGINE
1 complaint
WHILE I WAS DRIVING MY VEHICLE ON THE STREETS; ITS AN 2018 KIA OPTIMA.ON AUGUST 2,2019 MY CAR ENGINE CAUGHT ON FIRE.PEOPLE WALKING ON THE SIDEWALK AND OTHER DRIVERS STOP TO ALERT ME THAT THEY SAW FIRE FROM THE BOTTOM OF THE CAR.THEN WHILE DRIVING I START TO NOTICE EXTREME SMOKE COMING FROM THE HOOD SO MUCH I COULDNT NO LONGER LOOK WHERE I WAS GOING.I PANICKED AND MIND WAS RACING Q HOW COULD THIS HAPPEN I GOT THIS CAR NEW LAST YEAR MAY 1,2018. WHEN I JUMPED OUT TO LOOK AT THE HOOD I SAW MY ENGINE ENGULFED WITH FLAMES.NEARBY DRIVER THREW ME A BOTTOLE OF WATER,LUCKILY I HAD JUST BOUGHT 24 CASE OF WATER, ANOTHER DRIVER PULLED OVER AND WAS HELPING ME POUR WATER TO REDUCE THE DAMAGE OF THE FIRE.NO ENGINE LIGHT WAS ON OR ANY OTHER WARNING LIGHTS BEFORE OR AFTER THE FIRE AND I HAD MY RECENTLY OIL CHANGE.
Sep 09, 2019
ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC),ENGINE
1 complaint
TAKARA RECALL VEHICLE POWER DOWN WHILE I WAS DRIVING 45 MPH ON A CITY STREET THE CAR WAS STATIONARY IN MOTION THEN POWERED BACK UP WITHOUT ME TURNING THE IGNITION.WAS A VERY SCARY EXPERIENCE
Jun 05, 2019
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE
1 complaint
WHEN I GOT IN MY CAR THE CHECK ENGINE CAN ON. I STARTED DRIVING MY CAR TO WORK, BECAUSE I WAS NOT SURE WHY THIS LIGHT CAME ON BECAUSE THIS WAS/IS A NEW CAR. I HAVE LESS THAN 19K MILES ON MY CAR. AS I ATTEMPTED TO GET ON THE HIGHWAY THE CAR REFUSED TO SPEED UP. THE MAX THAT I COULD DRIVE WAS 60 MPH. I HAD TO PULL OVER TO THE SIDE OF THE ROAD BECAUSE MY CAR WOULD NOT PICK UP SPEED. SO I CALLED THE SERVICE DEPARTMENT, WHO INFORMED ME THAT WHEN I BROUGHT MY CAR IN FOR AN OIL CHANGE IN JANUARY THAT THEY HAS PLACE A SAFTEY FEATURE ON MY CAR TO KEEP THE ENGINE FROM BLOWING UP. ACCORDING TO THE DEALERSHIP, THERE IS POSSIBLY SOMETHING WRONG WITH THE ENGINE, HOWEVER, THEY ARE STARTING OUT BY CHANGING THE WIRING FIRST. I CAN NOT EXPLAIN HOW DIFFERENT THIS DRIVES SINCE THE WIRES HAVE BEEN CHANGED. IT IS THE WORST DRIVE. THE CAR IS VERY LOUD IT DOES NOT PICK UP SPEED WHEN IT SHOULD AND IT DOES NOT SLOW DOWN AS FAST AS IT USE TO. NEEDLESS TO SAY, I AM HAVING ISSUES WITH THIS CAR AND SEEMINGLY EVERY TIME I TAKE IT IN FOR REPAIRS, THE CAR GETS WORST. I WILL NEVER EVER BUY A NEW/USED KIA AGAIN.
May 31, 2019
AIR BAGS,STRUCTURE,SERVICE BRAKES
1 complaint
TAKATA RECALL. I WAS INVOLVED IN AN ACCIDENT WHERE I WAS COMING OFF THE HIGHWAY, SLID ON WATER AND CRASHED INTO A STEEL POLE. THE BREAKS DID NOT WORK AT ALL AND WHEN I GOT OUT TO LOOK AT THE DAMAGE THE BREAK PADS WERE IN THE MIDDLE OF THE STREET LIKE THEY HAD JUST FALL OFF. NONE OF THE AIRBAGS DEPLOYED AND MY FRIEND'S HEAD CRACKED THE WINDSHIELD. CAR WAS TOTALED.
Nov 21, 2018
FORWARD COLLISION AVOIDANCE
1 complaint
TL* THE CONTACT OWNS A 2018 KIA OPTIMA. WHILE OPERATING THE VEHICLE AT VARIOUS SPEEDS, THE FORWARD COLLISION WARNING SYSTEM AND THE FORWARD COLLISION BRAKING SYSTEM DID NOT OPERATE AS INTENDED. WHILE DRIVING APPROXIMATELY TWO FEET BEHIND ANOTHER VEHICLE, THE CONTACT WAS NOT WARNED OF THE OTHER VEHICLE AND THE SYSTEM DID NOT STOP THE VEHICLE WHEN NECESSARY. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (MORITZ KIA FORT WORTH, 8501 I-30 WEST, FORT WORTH, TX) WHO WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURES. THE MANUFACTURER WAS NOTIFIED AND NO SOLUTION WAS OFFERED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 300. *TT
Jul 12, 2018
Frequently Asked Questions
How many problems does the 2018 KIA Optima have?
The 2018 KIA Optima currently has 212 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.
What are the most common problems with 2018 KIA Optima?
The most common problems reported for the 2018 KIA Optima are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.
Where does this 2018 KIA Optima problem data come from?
All problem and complaint data for the 2018 KIA Optima comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.
Other Years - KIA Optima
2020 Problems
2019 Problems
2017 Problems
2016 Problems
2015 Problems
2014 Problems
2013 Problems
2012 Problems
2011 Problems
2010 Problems
2009 Problems
2008 Problems
2007 Problems
2006 Problems
2005 Problems
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