1999 GMC Sonoma Problems

VIN Decoder

Premium Report

Complaints Reported

OBD2 Scanner Jump Starter Car Vacuum Tire Inflator Phone Mount Emergency Kit

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Complaints by Component

SERVICE BRAKES, HYDRAULIC

12 complaints

I WAS TRAVELING ON MY JOB. I WAS IN ATLANTA GA. AND IT WAS RAINING. TRAFFIC SLOWED DOWN AND I LIGHTLY APPLIED MY BRAKES AND THEY LOCKED DOWN CAUSING THE YUKON TO SLIDE. I ALMOST HIT THE VEHICLE IN FRONT OF ME. THIS HAS HAPPENED 5 TIMES AND IT WAS RAINING EVERYTIME. THE RECALL SAID IT WAS ONLY FOR UP NORTH. I TRAVEL NORTH ALL THE TIME ON MY JOB. BUT I LIVE IN ALABAMA. SO I THINK THE RECALL SHOULD COVER MY 99 GMC YUKON ALSO.*JB

Sep 05, 2005

REAR BRAKE ROTORS DISINTEGRATED AFTER 22,000 MILES. HAD TO BE TURNED AND PADS REPLACED. FRONT ROTORS REPLACED AT 32,000 MILES SAME CONDITION. MASTER CYLINDER FAILED AND NEEDED TO BE REPLACED AT 32,800 MILES. PEDAL WENT TO THE FLOOR AND NEARLY WENT IN FRONT OF A SEMI. PEDAL CAN BE PUMPED UP BUT GRADUALLY GOES TO FLOOR. *TT

May 02, 2003

LEFT FRONT BRAKE CALIPER FAILED CLOSED AND CAUSED EXCESSIVE WEAR REQUIRING REPLACEMENT OF CALIPERS AND ROTORS ON BOTH SIDES AS ABS SYSTEM COMPENSATED FOR FAILURE THIS DISGUISING THE PROBLEM. DT

Nov 18, 2002

CONSUMER COMPLAINS OF THE REPEATED REPAIRS MADE TO CORRECT THE GRINDING NOISE HEARD IN THE BRAKES. THE BOOSTER ASSEMBLY WAS REPLACED. THE PROBLEM STILL EXISTS. *JG

Oct 30, 2002

I NOTICED THAT THE ABS PUMP UNDER THE DRIVERS SEAT WAS RUNNING ALL THE TIME. I'M CONFIDENT THAT THE ABS WAS NOT WORKING. MY WIFE DIDN'T NOTICE THE SOUND BECAUSE IT WASN'T REALLY LOUD. I UNPLUGGED THE ABS UNDER THE TRUCK AND DROVE IT TO A REPAIR SHOP. I WAS TOLD THIS IS A COMMON PROBLEM. WHEN THE GARAGE PICKED UP THE PART AT THE GMC DEALERSHIP, THEY WERE TOLD THIS IS A COMMON PROBLEM AND THEY COULDN'T KEEP ENOUGH CONTROL MODULES IN STOCK. THIS IS A DEALER PART #88935872 "ABS CONTROL MODULE WITH A COST OF $682.50. TOTAL COST OF THE REPAIR WAS $839.77. (THE DEALER WOULD HAVE CHARGED MORE). MY FIRST CONCERN IS THAT MANY DRIVERS WOULD NOT HAVE NOTICED THE PROBLEM AND SECONDLY I CAN'T IMAGINE THAT AN ABS CONTROL SYSTEM WOULD FAIL IN JUST OVER 2 YEARS AND AT ONLY 44,000 MILES. BECAUSE THIS IS OBVIOUSLY SUCH A COMMON PROBLEM I FEEL THAT GENERAL MOTORS SHOULD BE REQUIRED TO UPGRADE THE SYSTEM AND/OR OFFER AN EXTENDED WARRANTY ON THE ABS. THE DEALER SAID MANY PEOPLE JUST DISCONNECT THE ABS RATHER THAN PAY THE HIGH COST OF REPAIR.

Jan 03, 2002

+ 7 more complaints for this component

SEATS

10 complaints

THE DRIVER'S SEAT ADJUST FAILED. NO PRESSURE--COULD BE PUT ON THE SEAT WITHOUT IT MOVING TO THE FULL BACK POSITION. THE DEALER INITIALLY REPLACED THIS IN MAR 05 AFTER ME AND DEALER SPEAKING WITH GMC CUSTOMER SATISFACTION. GMC REIMBURSED ME FOR COSTS. 15 MONTHS [!!] LATER, IT FAILED AGAIN. THE DEALER HAD ONLY SEEN THIS ISSUE TWICE, BOTH TIMES WITH MY CAR. GMC INITIALLY DECLINED TO PAY FOR THE REPAIR. THEN, AFTER DISCUSSION WITH ME, THEY OFFERED TO PAY FOR IT WITH ME UNDERSTANDING THAT THEY HAD NO LIABILITY AND WOULD NOT PAY FOR ANY FUTURE REPAIRS OR WOULD OFFER ME $500 CERTIFICATE DISCOUNT ON A NEW GMC TRUCK. WHEN I MENTIONED THE SAFETY ISSUE POTENTIAL, THEY WANTED ME TO UNDERSTAND THAT IF I ACCEPTED THE MONEY, I WOULD HAVE NO STANDING IN FUTURE PROBLEMS OF THE SAME NATURE. I DECLINE. I AM CONCERNED ABOUT THE SAFETY POTENTIAL OF THIS. THEY HAVE TWICE CORRECTED THE SYMPTOMS. IS THERE AN UNDERLYING CAUSE??? ARE OTHERS HAVING SIMILAR ISSUES. I HOPE YOU CAN HELP TO GET A HANDLE ON THIS FOR ME AND, POTENTIALLY, FOR OTHERS, TOO. THANK YOU. *JB

Aug 09, 2006

ADJUSTMENT HANDLE BROKE OFF AT THE BASE. AS A RESULT, SEAT COULD NOT BE ADJUSTED. *AK

Apr 13, 2004

BOTH DRIVER AND PASSENGER SEAT RECLINE HANDLES HAVE COMPLETELY LEAVING BOTH SEATS INCAPABLE OF RECLINING. UNFORTUNATELY, LEAVING THE OCCUPANTS VULNERABLE IF AN ACCIDENT WERE TO OCCUR. DRIVERS SIDE BROKE TWICE. 1ST TIME REPAIRED UNDER WARANTY. DRIVERS SIDE BROKE AFTER WARANTY HAD EXPIRED. PASSANGERS SIDE SAME AFTER WARNTY EXPIRED. NEATHER REPLACED AT THIS TIME. *AK

Jul 08, 2003

BOTH DRIVER AND PASSENGER SEAT RECLINE HANDLES HAVE COMPLETELY BROKE OFF LEAVING BOTH SEATS INCAPABLE OF RECLINING. UNFORTUNATELY, THE PASSENGER SIDE SEAT IS STUCK IN A FORWARD POSITION LEAVING THE PASSENGER SOMEWHAT VULNERABLE IF AN ACCIDENT WERE TO OCCUR.*JB

Feb 25, 2003

CONSUMER STATED THE POSITIONING OF THE DRIVER'S SEAT ADJUSTMENT PANEL AT THE FRONT OF THE SEAT CAN LEAD TO A SERIOUS ACCIDENT IF THE DRIVER TRIES TO ADJUST THE SEAT WHILE THE VEHICLE IS IN MOTION, ONE CAN NOT ADJUST THE SEAT WITHOUT BENDING DOWN AND LOOKING AWAY FROMT HE ROAD.*JG

Oct 30, 2002

+ 5 more complaints for this component

STRUCTURE

9 complaints

WHILE STEPPING OFF OF TAILGATE, BOTH CABLES SNAPPED AND THE TAILGATE FELL OFF OF PICKUP. NO BROKEN BONES, BUT BUMPS AND SCRAPES. CABLES ARE SEALED, EXCEPT FOR THE ENDS, WHERE WATER MUST HAVE GOTTEN INTO THEM AND CORRODED THE CABLE FROM THE INSIDE. *TR

Nov 04, 2009

Injuries: 1

THIS MESSAGE WAS ORIGINALLY SENT TO MY BROTHER ADVISING HIM OF THIS PROBLEM. BELOW IS THE EXPLANATION. IMAGINE THE TRUCK HAS A COUPLE OF TOW HOOKS ON THE FRONT END LIKE MINE DID. I WOULD BE CAREFUL USING THEM TO PULL THE VEHICLE OUT OF A HOLE ,USING ANYTHING OTHER THAN A CHAIN. CONVERSELY THE SAME WOULD APPLY IF ON WAS USING THEM TO PULL SOMETHING.*AK I HAVE BEEN USING MINE TO PULL THINGS FROM TIME TO TIME BUT MOSTLY TO RAISE THE FRONT OF THE TRUCK FOR OIL CHANGES ETC. TODAY LIKE ALWAYS, I USED MY AIR BUMPER JACK TO ENGAGE THE TWO HOOKS AND LIFT THE VEHICLE TO WORK ON. BECAUSE THE AIR JACK IS OLD AND LEAKS, WHEN YOU GET TO THE HEIGHT YOU WANT, IN A MOMENT OR TWO, THE JACK WILL USUALLY SETTLE BACK DOWN A BIT UNTIL IT ENGAGES THE SAFETY STOP. THIS USUALLY RESULTS IN A CLUNK AND SOME G LOAD TO THE HOOKS WHEN IT STOPS. TODAY WHEN IT SETTLED ONTO THE STOP, BOTH HOOKS FAILED AT THE FIRST ATTACHING BOLTS! THE AIR JACK VAULTED INTO THE AIR AND THE TRUCK CAME CRASHING DOWN TO THE GROUND. IN ANOTHER MOMENT, I WOULD HAVE BEEN HALF UNDER IT PLACING THE JACK STANDS! WHEN I THINK BACK, THERE HAVE BEEN TIMES WHEN I CHANGED THE OIL AND DID OTHER SERVICE WORK ON IT WITH NO SAFETY STANDS, AS THE AIR JACK HAS A SECURE SAFETY LATCH AND THE JACK PADS AND THE TOW HOOKS HAVE A POSITIVE ENGAGEMENT. IN LOOKING AT THE FAILURE, THERE ISN'T MUCH MEAT IN THE HOOK ASSEMBLY WHERE THE ATTACHMENT BOLTS ARE THREADED INTO THE SHANK OF THE HOOK. THE MATERIAL IS QUITE HARD AS THERE IS NO VISIBLE DEFORMATION IN THE FAILURE AREA. I GUESS IN RETROSPECT, THE HOOKS ARE THERE FOR PULLING AND NOT LIFTING BUT IF YOUR TRUCK WAS DOWN IN A DITCH YOU WOULD USE THESE HOOKS TO PULL/LIFT THE VEHICLE OUT. I WOULDN'T WANT TO BE STANDING IN THE WAY IF ONE OF THEM FAILED AND LAUNCHED A HOOK OF CONSIDERABLE MASS INTO THE AIR. JOHN

Mar 25, 2007

DT*: THE CONTACT STATED THE STEEL TAILGATE SUPPORT CABLES FRACTURED UPON OPENING THE TAILGATE WITHOUT WARNING. ALTHOUGH THE PROBLEM PERSISTED, THE VEHICLE WAS NOT SEEN BY A DEALER. THERE IS A NHTSA RECALL, # 04V129000, REGARDING THE TAILGATE HINGE AND ATTACHMENTS. THE VIN WAS NOT INCLUDED IN THE RECALL. UPDATED 05/31/06. *TT

Apr 25, 2006

DT*: THE CONTACT STATED WHEN THE TAILGATE WAS OPENED THE HINGES BROKE. THE TAILGATE CAME TO REST ON THE BUMPER OF THE VEHICLE. THE VEHICLE HAS NOT BEEN INSPECTED. THERE IS A NHTSA RECALL, # 06V066000, REGARDING THE TAILGATE: HINGE AND ATTACHMENTS. THE VEHICLE HAS THE SAME PROBLEM AS INDICATED IN THE RECALL; HOWEVER IT IS NOT INCLUDED IN THE RECALL DUE TO THE MODEL AND YEAR. THE MANUFACTURER HAS BEEN CONTACTED. THE CONTACT WROTE TO GMC INQUIRING WHY THEY WERE ONLY RECALLING 1999-2000 MODELS. WHAT ABOUT OTHER MODELS OF GMC TRUCKS THAT HAVE THE SAME PROBLEM LIKE THE 19999-2000 SONOMA'S. *AK

Mar 14, 2006

DT*: THE CONTACT STATED THE PASSENGER SIDE CABLE BROKE WHILE ATTEMPTING TO OPEN THE TAILGATE. THERE IS A NHTSA RECALL, # 06V066000, REGARDING THE TAILGATE: HINGE AND ATTACHMENTS. THE VEHICLE HAS THE SAME PROBLEMS AS INDICATED IN THE RECALL; HOWEVER IT IS NOT INCLUDED IN THE RECALL DUE TO THE VIN. NO REPAIRS HAVE BEEN MADE. UPDATED 03/28/06. *JB

Mar 13, 2006

+ 4 more complaints for this component

AIR BAGS

6 complaints

TL* THE CONTACT OWNED A 1999 GMC SONOMA. WHILE DRIVING 5 MPH ON A FLOODED DIRT ROAD, THE CONTACT CRASHED INTO A DITCH. AFTER THE CRASH, THE VEHICLE CAME TO A COMPLETE STOP. THE AIR BAG DEPLOYMENT WAS DELAYED. THE CONTACT SUSTAINED A CRACKED PELVIS, BROKEN FACIAL BONES, OPTIC NERVE DAMAGE, AND OTHER SEVERE INJURIES TO THE FACE. MEDICAL ATTENTION WAS REQUIRED. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VIN WAS NOT INCLUDED IN ANY RECALLS. THE VEHICLE WAS DESTROYED AND TOWED. THE LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 140,000. *TT THE CONSUMER STATED BACK WINDSHIELD EXPLODED AND FRAME WAS BENT. *TR

Dec 28, 2017

Crash: 1

Injuries: 1

TL* THE CONTACT OWNS A 1999 GMC SONOMA. THE CONTACT STATED THAT THE AIR BAG WARNING INDICATOR ILLUMINATED WHILE DRIVING OVER UNLEVELED LAND. THE CONTACT WAS UNABLE TO DETERMINE THE ORIGIN OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 180,000.

Jul 10, 2015

WHILE DRIVING 65 MPH CONSUMER HIT A COW IN THE ROAD, AND THE AIR BAGS DID NOT DEPLOY. TOOK VEHICLE TO DEALERSHIP, WHERE THE MECHANIC HAD NOT RESOLVED THE PROBLEM.*AK

Oct 28, 2003

Crash: 1

WHILE DRIVING AT HIGHWAY SPEED VEHICLE HYDROPLANED INTO A TREE AND NEITHER AIR BAG DEPLOYED. DEALER AND MANUFACTURER WERE NOT NOTIFIED AT THIS TIME. FEEL FREE TO PROVIDE ANY FURTHER INFORMATION.*AK

Aug 08, 2002

Crash: 1

VEHICLE STRUCK THE REAR OF ANOTHER VEHICLE AT 35MPH, NEITHER DRIVER'S SIDE NOR PASSENGER'S SIDE AIR BAG DEPLOYED. MANUFACTURER HAS BEEN CONTACTED. *AK

Mar 24, 2000

Crash: 1

Injuries: 1

+ 1 more complaint for this component

POWER TRAIN

6 complaints

DIFERENTIAL HAS A ZUMING VIBRATING AND CLIKING NOISE WHEN DRIVING BOTH AJUSTABLE SEAT HANDELS BROKE AND 3RD SMALL DOOR HANDEL HAS NEVER WORK PROPERLY AND KEEPS BREAKING. *AK

Jan 20, 2004

DEALER WHERE VEHICLE WAS TOWED FOR REPAIRS SAYS THE AUTOMATIC TRANSMISSION MUST BE PULLED AND DISASSEMBLED TO DETERMINE WHAT IS BROKEN AND THE FACTORY WILL NOT PROVIDE WARRANTY RELIEF SINCE THE TRUCK IS OVER 4 YEARS OLD EVEN THOUGH THE VEHICLE HAS ONLY 36,489 MILES. ORIGINAL WARRANTY WAS 3 YEARS OR 36,000 MILES WHICH EVER COMES FIRST. VEHICLE HAS BEEN SERVICED BY DEALER SINCE PURCHASE. THE TRUCK GAVE A HIGH SCREECHING NOISE AND LOSS OF POWER IN THE TRANSMISSION, FORWARD DRIVE GEAR. I PULLED OFF THE FAIRFAX COUNTY PARKWAY IN HERNDON AND PULLED INTO A PARKING LOT. NEXT DAY TRIED TO BACK UP TRUCK AND TRANSMISSION GAVE SCREECHING NOISE AND VEHICLE WOULD NOT MOVE. IF VEHICLE IS 2, 3 OR 4 YEARS OLD BUT ONLY HAS 36,489 MILES WHY CAN'T GMC PROVIDE RELIEF FOR A VEHICLE DEFECT IN THE TRANSMISSION WHICH IS SAFETY RELATED DUE TO LOSS OF POWER AND MANEUVER ABILITY WHEN IT OCCURRED? VEHICLE IS AT A GMC DEALER WHICH I DID NOT PURCHASE FROM FOR REPAIRS AS I HAVE HAD IT TOWED TO THE NEAREST DEALER FOR REPAIRS. CAN YOU PROVIDE SOME ASSISTANCE WITH GMC ON WARRANTY OR SECRET WARRANTY REPAIRS? *JB

May 03, 2003

DRIVERS SIDE AND PASSENGER SIDE HUB BEARINGS FAILED. *AK

Jul 27, 2002

THIS VEHICLE HAS ALREADY HAD ONE TRANSMISSION REPLACED AT 5800 MILES AND THE BRAKES HAVE BEEN A PROBLEM FOR AS LONG AS WE HAVE LEASING THE VEHICLE. I HAVE BEEN TOLD THAT THERE IS NOTHING WRONG WITH THEM. THEY SQUEAK AND SOMETIMES GO TO THE FLOOR. I AM PREPARING TO GET A BREAK-JOB THIS WEEK AT MY OWN EXPENSE. THE TRANSMISSION IS ACTING UP AGAIN (NEW TRANS) AND I HAVE AN APPOINTMENT TO TAKE IT TO THE DEALER AGAIN. THIS VEHICLE HAS BEEN NOTHING BUT PROBLEMS SINCE WE HAVE OWNED IT. COMPLAINTS THE FIRST WEEK OF OWNERSHIP TO THE DEAL FOR PAINT SCRATCHING WITH HAND WASHING IT. MAYBE NO TOP COAT WAS APPLIED AT THE FACTORY??? I AM GETTING NOWHERE WITH THE DEALSHIP WHICH IS MARTIN BUICK/GMC IN FENTON WHERE I TAKE IT FOR SERVICE, BUT IT IS NOT THE DEALER WE PURCHASED IT FROM (I DON'T RECALL), BUT I THINK THE DEALER WAS IN PONTIAC, MICH. *AK

May 24, 2000

WHEN IN 2 OR 4WD ON A STEEP HILL IN 2ND GEAR TRUCK DOES NOT MOVE. THE TRANS. WILL SLIP AND THE TRUCK SHAKES.THE OWNERS MANUAL SAID TO USE 2ND FOR. *AK

Jan 09, 2000

+ 1 more complaint for this component

ENGINE AND ENGINE COOLING

5 complaints

I HAVE ENCOUNTERED SEVERAL DIFFERENT CHEVY/GMC VEHICLES THAT ARE EXPERIENCING A LAGGING START AND IN SOME CASES NO START WITHOUT A BOOST. MY SONOMA HAS THE LAG AND I HAVE A FEW FRIENDS THAT HAVE BLAZERS AND FULL SIZE TRUCKS AS WELL. THE VARIATION OF ENGINE SIZES THAT ARE AFFECTED HAS ME PERPLEXED. I HAVE ATTEMPTED TO RUN CODES WITH NO FAULT RESULTS. THIS OCCURS EVERY TIME I ATTEMPT A STARTUP. *TR

Jan 05, 2009

NOT SURE IF BELT BROKE FIRST OR FAN BLADE THE BLADE BROKE OFF AND FLEW INSIDE OF TRUCK CAUSING DAMAGE TO PARTS UNDER THE HOOD IT WAS 1000.00 TO FIX ALL THE PARTS BROKEN BY THIS. I HAVE ALL THE OLD PARTS. THE BELT WAS OK BUT SOMETHING CAUSED THE BLADE TO BRAKE OFF AND THERE ARE NOTICEABLE CRACKS IN THE BLADE AROUND THE NUT. BECAUSE OF THIS FAILURE I HAD TO REPLACE A LOT OF COMPONENTS UNDER THE HOOD. *NM

May 13, 2006

VEHICLE MAY EXPERIENCE ENGINE BACKFIRE DUE TO DAMAGE TO THE ENGINE AIR INTAKE SYSTEM.*MR IF THIS OCCURRED, IT WOULD RESULT IN ENGINE COMPARTMENT FIRE. *PH. THE CONSUMER STATED THE AIR FILTER AND AIR CLEANER WAS REPLACED. THE CONSUMER WAS INSTRUCTED TO TAKE THE VEHICLE TO A GMC DEALER TO VERIFY THAT THE AIR CLEANER AND AIR FILTER HAD BEEN REPLACED, THE CONSUMER RECEIVED A RECALL FROM GMC WHO STATED REIMBURSEMENT WOULD BE ISSUED ONCE ALL THE NECESSARY PAPER WAS RECEIVED. ONE MONTH LATER, THE CONSUMER WAS INFORMED THE CLAIM WAS FOR GENERAL MAINTENANCE AND GENERAL MOTORS DID NOT PAY FOR THAT AND THE CLAIM WAS FOR A WARRANTY ITEM AND THE WARRANTY HAD EXPIRED, THEREFORE THE CLAIM WAS DENIED. *JB

Sep 03, 2003

THE HEATER ON MY VEHICLE HAS STOPPED WORKING AND THE MANUFACTURE (GMC) AND THE DEALERSHIP REFUSE TO COVER IT UNDER WARRANTY. THERE IS A NHTSA BULLERIN ON THIS (634218). I WOULD LIKE TO KNOW HOW MANY OTHER VEHICLES LIKE MINE (1999 GMC SONOMA) HAVE EXPERIENCED THIS PROBLEM.

May 29, 2003

WE HAVE A 1999 GMC WITH A CRACKED ENGINE BLOCK AND CRACKED CRANKSHAFT. *TS *JB ****DIMSII IVOQ ENTRY POSTED AFTER 12-12-02 CUT OVER TO ARTEMIS****761432

May 01, 2002

VEHICLE SPEED CONTROL

4 complaints

AFTER STARTING VEHICLE, CONSUMER STATES THE FUEL INDICATOR READS VEHICLE IS FULL OF GAS. WHEN IN ACTUALITY VEHICLE IS EMPTY. AND WHEN TANK IS EMPTY IT READS FULL. DEALER HAS BEEN CONTACTED. PLEASE PROVIDE ANY FURTHER INFORMATION. TS

Dec 30, 2002

THE THROTTLE CABLE COMES OFF ACCELERATOR PEDAL WHILE DRIVING, ALMOST CAUSING AND ACCIDENT ON 3 SEPARATE OCCASIONS. NLM

May 29, 2001

THE THROTTLE CABLE COMES OFF ACCELERATOR PEDAL WHILE DRIVING, ALMOST CAUSING AND ACCIDENT ON 3 SEPARATE OCCASIONS. NLM

May 29, 2001

THE ACCELERATOR PEDAL STICKS WHEN STARTING ON DRIVE OR REVERSE CAUSING THE VEHICLE TO JUMP. YH

May 30, 2000

FUEL SYSTEM, GASOLINE

3 complaints

MY 1999 GMC SONOMA HAS HAD A FAULTY FUEL GAUGE SINCE THE VEHICLE WAS PURCHASED. IT WAS TAKEN INTO JIM CAUSLEY'S PONTIAC/GMC IN CLINTON TOWNSHIP MI ONCE FOR WARRANTY REPAIRS BUT THE PROBLEM WAS NEVER FIXED. SERVICE REP INFORMED ME THAT IT WAS CAUSED BY A BAD VEHICLE GROUND. PROBLEM STILL PERSISTS TO THIS DAY. THE ONLY WAY I CAN AVOID RUNNING OUT OF GAS IS TO RESET THE TRIP ODOMETER EVERY TIME I FILL-UP. *TR

Apr 29, 2011

FUEL GAUGE IS INACCURATE AND FLUCTUATES WHEN TRUCK IS IN PARK OR NEUTRAL READS BETWEEN 3/4 AND FULL WHEN DRIVING EVEN IF TANK IS CLOSE TO EMPTY. DROPS TO SHOW TANK IS EMPTY WHEN IN PARK EVEN IF FULL. *NM

Oct 07, 2004

THIS TRUCK HAS BEEN AT THE DEALER SINCE FEB 10, 2000. NO ONE KNOWS WHAT HAS GONE WRONG. WE WERE TOLD THAT WHEN THE FUEL PRESSURE IS RAISED IT RUNS FINE, BUT CANNOT BE LEFT AT THAT PRESSURE, WILL CAUSE FIRE. *AK

Mar 21, 2000

EQUIPMENT

3 complaints

CONSUMER COMPLAINS OF THE REPEATED REPAIRS MADE TO CORRECT THE MALFUNCTIONING AIR CONDITIONER, BOTH FRONT AND REAR. *JG

Oct 30, 2002

MANUFACTURE MALFUNCTION ASSEMBLED WRONG AND RUBBED THROUGH ALUMINIUN HOSE IN LESS THAT 1 1/2 YEARS. *AK

Jul 18, 2000

THE AURAGEN IS A NEW TYPE OF A/C GENERATOR BUILT BY AURA SYSTEMS, INC. (WWW.AURASYSTEMS.COM). I AM A FORMER EMPLOYEE AND IT HAS NOT BEEN SAFETY TESTED FOR FATIGUE LIFE. A FAILURE COULD KILL INNOCENT BYSTANDERS ON THE ROAD. I SUGGEST YOU ASK FOR FATIGUE ANALYSIS OR FATIGUE TEST DATA BEFORE YOU ALLOW THEM TO BE INSTALLED IN VEHICLES.

Nov 16, 1999

SEAT BELTS

3 complaints

THE DRIVERSIDE AND PASSENGER SIDE SEAT RECLINER LEVERS IN MY VEHICLE HAVE BROKEN FOUR TIMES. WHEN THESE BREAK, THE SEAT LAYS FLAT BACK AND YOU CANNOT MOVE IT UP AND DOWN. I HAD THE ORIGINALS REPLACED AT DIFFERENT TIMES, AND NOW AGAIN THEY ARE BOTH BROKEN. THE PART IS JUNK, AND NEEDS REMODELING. IT IS VERY UNSAFE TO HAVE THIS LEVER BROKEN, BECAUSE THEN THE SEAT IS BROKEN. WILL THE SEAT BELT WORK CORRECTLY IF I GET INTO AN ACCIDENT? GENERAL MOTORS HAS TOLD ME TO PAY FOR THE PARTS, BUT I BELIEVE THE PART IS FAULTY AND THEY SHOULD RE-DESIGN AND FIX THE PROBLEM AFTER FOUR TIMES.

Jan 03, 2002

SHOULDER BELT GETS CAUGHT BETWEEN SEAT AND DOOR CAUSING UNNECESSARY OPENING OF DOOR. THE BELT HANGS OUT OF DOOR BECAUSE WSHEN BELT IS REMOVED IT TWISTS AT BRACKET, CAUSING NO RETRACTION. *AK

Jan 22, 2000

THE SHOULDER BELT ON THE DRIVER SIDE WON'T RETRO & PART OF THE SHOULDER BELT HANG'S OUTSIDE THE DOOR. *YC

Nov 02, 1999

SERVICE BRAKES

2 complaints

DURING A PANIC STOP THE BRAKE SYSTEM LIGHT CAME ON AND THE BRAKES FELT SOFT BUT STILL WORKED. DURING THE DRIVE THE BRAKES BECAME VERY WEAK. WHEN I CHECKED THE BRAKE FLUID IT WAS EMPTY. I REFILLED IT AND STARTED CHECKING FOR LEAKS. I FOUND THAT BOTH THE FRONT AND REAR BRAKE LINES WE FRACTURED BECAUSE OF THE PRESSURE DURING THE PANIC STOP CAUSING THE RUSTED LINES TO BURST. THIS SEEMS TO BE A KNOWN ( BUT NOT REPORTED) PROBLEM FOR THIS TRUCK IN THE NORTHERN AREA..

Dec 13, 2017

BRAKE LINE HYDRAULIC FAILURE OF HARD STEEL LINE. THE LINE THAT BROKE GOES TO THE BACK WHEELS ALONG THE FRAME. *TR

Jan 25, 2013

ELECTRICAL SYSTEM

2 complaints

TL* THE CONTACT OWNS A 1999 GMC SONOMA. WHILE DRIVING 72 MPH ON THE HIGHWAY, THE VEHICLE LOST ALL POWER AND THE POWER STEERING FAILED. AFTER THE VEHICLE STALLED, ALL THE LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE IGNITION SWITCH NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 156,000.

Jun 19, 2015

BRAKE LIGHTS ARE INOPERABLE. DEALER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION. *AK

Jun 25, 2002

UNKNOWN OR OTHER

2 complaints

WHILE THE DRIVER WAS ADJUSTING THE SEAT THE HANDLE SHEARED OFF. CONSUMER DROVE THE VEHICLE TO DEALER FOR INSPECTION, AND MECHANIC REPLACED DRIVER SIDE SEAT HANDLE. ALSO, MECHANIC DETERMINED THAT THE PASSENGER SIDE SEAT HANDLE NEEDED TO BE REPLACED . *AK THE CONSUMER HAS HAD FOUR HANDLES REPLACED IN ALL. *NM

Apr 27, 2004

THIS IS A GMC TRUCK W5500 FIRST WAS A OIL LINE THAT LEFT ME STRANDED FOR 3 DAYS WAITING FOR A PART THEN WAS A RUBBER PIECE OFF FAN SRAD THAT DROP IN TO FAN CAUSING OVERHEATING AND FAN DAMAGE 7 MONTHS LATER THE SAME EXACT OIL LINE FAILED AGAIN CAUSING 3 MORE DAYS OF DOWN TIME AND MORE EXPENCES I AM ON MY 3RD ANTIFREEZE STORGE TANK AT 100$ APOP THE PROBLEM IAM HAVING AS OF THIS DATE 03/30/03 OIL IS SHOWING UP IN THE ANTIFREEZE I TOOK IT TO THE DEALER SHIP AFTER 2 DAYS OF CHECKING THEY REPLACE THE STORAGE TANK TOLD ME IT WAS ROAD GRIM SENT ME ON MY WAY 200$ LATER 1 WEEK LATER THE OIL IS BACK IN THE TANK THIS IS STILL A PROBLEM AS OF THIS DATE I CAN NOT AFFORD DOWN TIME EVERY WEEK OR REPLACING TANKS AS WELL I AM A SMALL BUSINESS MAN I WAS IN THE AIR FREIGHT DELIVERY SERVICE WORK MOSTLY OUT OF AIRPORTS MY BUSINESS WAS SEVERLY HURT AFTER 9/11/00 I HAD A LOT OF TROUBLE KEEPING UP MY PAYMENTS WITH COSTLY REPAIR BILLS WHICH STRARTED ONE MONTH AFTER 9/11 AND STILL PERSIST TODAY

Jan 15, 2004

EXTERIOR LIGHTING

2 complaints

HEADLIGHTS CUT OFF WHEN THE SIGNAL LIGHTS ARE APPLIED, THEN COME BACK ON. ALSO WHEN DRIVER PARKS THE VEHICLE THE HEADLIGHTS ARE OUT. DEALER CAN'T FIND SOLUTION. *AK

Feb 01, 2000

WHENEVER TURN SIGNAL IS ACTIVATED, DAY TIME RUNNING LIGHTS GO OUT. AFTER TURN SIGNAL GOES OFF, DAYTIME RUNNING LIGHTS COME BACK ON. DEALER/ MANUFACTURER ARE AWARE OF THE PROBLEM. PROBLEM HAS NOT BEEN CORRECTED. *AK *ET

Jun 03, 1999

SUSPENSION

2 complaints

SUSPENSION SYSTEM DESIGN (WITH LOW RIDER OPTION) EXPERIENCES VIBRATION WHEN GOING OVER BUMPS AND IS UNABLE TO BE RECTIFIED. MJS

Dec 30, 1999

I HAVE GONE TO THE DEALERSHIP SEVERAL TIME WITH THE TRUCK SHAKING, AND THEM AGREEING IT WAS SHAKING WITH NO SOLUTION OFFERED. IT APPEARS TO BE WORSENING. THE STEERING HAS BEEN POOR AT BEST. THE WHEEL WHEN TURNING FEELS LIKE THERE IS PLAY. HAVING OWNED A 95 A 96 AND NOW A 99 I FEEL THAT THERE IS SOME THING WRONG WITH THE 99. WHAT COURSE OF ACTION DO I HAVE? *AK

Mar 30, 1999

VISIBILITY

1 complaint

DT: WHILE THE VEHICLE OWNER WAS DRIVING THE REAR VIEW MIRROR FELL OFF THE WINDSHIELD. THE MIRROR HAS NOT YET BEEN REPAIRED. THE OWNER HAS FILED A COMPLAINT WITH GM 7344810803 IS FILE NUMBER GIVEN FOR THIS REPORT. *JB THE TECHNICIAN CLAIMED THAT THE FAILURE WAS DUE TO THE HEAT. *NM

Jul 15, 2005

POWER TRAIN,TIRES,EQUIPMENT,UNKNOWN OR OTHER

1 complaint

1999 GMC SONOMA EXPERIENCED PROBLEMS WITH TRANSMISSION, CD PLAYER, TIRES AND HEATING COIL.*MR CONSUMER CONCERNED THAT DEALER DID NOT TELL THEM THAT THERE WAS A RECALL ON THIS VEHICLE. THE TRANSMISSION WAS REPLACED, EXCHANGED REBUILT TORQUE CONVERTER WITH TRANCES FILLER 12 MONTH OR 12,000 MILE WARRANTY. *BF *NM

Apr 12, 2005

POWER TRAIN,UNKNOWN OR OTHER

1 complaint

SEALS AND GASKETS FOR THE DIFFERENTIAL, POWER STEERING, OIL PAN AND DRIVE TRAIN WERE ALL WORN AND NEEDED REPLACING

Jan 15, 2004

INTERIOR LIGHTING

1 complaint

THERE ARE NO INDICATOR LIGHTS TO ALERT THE CONSUMER IF ANY OF THE DOOR'S ARE NOT PROPERLY CLOSED.*JG

Oct 30, 2002

STEERING

1 complaint

SHORT IN THE ELECTRICAL SYSTEM, BLOWING THE IGNITION FUSE, CAUSING THE VEHICLE TO STALL. THIS CONTINUED UNTIL THE WIRING IN THE STEERING COLUMN SHORTED, CAUSING THE VEHICLE TO STALL IN TRAFFIC, SMOKE CAME FROM THE STEERING COLUMN AND FROM UNDER THE HOOD.

Jan 03, 2002

STEERING,SUSPENSION

1 complaint

VEHICLE WOULD SHIMMY AND FRONT END WOULD SHAKE VISIBLY. DEALER REPLACED FRONT BALL JOINTS/ IDLER ARM AND TIE ROD ENDS AT34000 MILES. AT THIS TIME, SAME 3 COMPONENTS NEEDED TO BE REPLACED PLUS FRONT WHEEL BEARINGS. THE VEHICLE HAD SAME PROBLEM AS IN AUG 2000. ALSO, TIRES WERE WEARING OUT ON THE OUTSIDE. 3 DIFFERENT GMC DEALERS TOLD CONSUMER THAT GMC WAS AWARE OF THE PROBLEM, BUT REFUSED TO DO ANYTHING ABOUT IT.*AK

Aug 09, 2001

TIRES

1 complaint

SLOWED VEHICLE TO TURN CORNER, TIRE STARTED TO SMOKE THEN BLEW OUT. WHEN TIRE TAKEN OFF TO REPLACE, THE TIRE THAT BLEW OUT HAD A CUT/TEAR APPROX. 4 INCHES ABOVE THE RIM.*AK (DOT NUMBER: VDX8551 TIRESIZE: P215/60R16)

Jul 15, 2001

STEERING,SEATS

1 complaint

A RECLINER WAS REPLACED ON THE SEAT. ALSO, POWER STEERING PUMP AND GEAR MALFUNCTIONED, CAUSING AN OIL LEAK. *AK

Sep 28, 2000

SERVICE BRAKES, HYDRAULIC,ENGINE AND ENGINE COOLING,ELECTRICAL SYSTEM

1 complaint

1) BOYFRIEND DRIVING, PULLED UP TO INTERSECTION, TRUCK STALLED, RESTARTED, DIED, NOTICED SMOKE, OPENED HOOD, FIRE NEAR BATTERY AND ANTIFREEZE CONTAINER, PUT OUT WITH SNOW, VEHICLE TOWED TO DEALERSHIP, CONTACTED GM, TOLD A REP WOULD CONTACT ME WITHIN 24-48 HOURS, THAT WAS A WEEK AGO, NO CALL, VEHICLE JUST SITS!! 2) ABS LIGHT ON, TOLD BY DEALERSHIP TO MAKE APPOINTMENT, NOT A BIG DEAL. WHEN LIGHT WAS ON THAT WAS TRUE, BUT LIGHT DIDN'T ALWAYS COME ON AND IT WAS LIKE A BRICK WAS BEHIND THE BRAKE. HAD TO SLAM ON IT! NOT GOOD ON THESE WINTER ROADS. DEALERSHIP DID REPLACE LEFT WHEEL SPEED SENSOR HARNESS. 3) NOTICED OIL LEAKING SLIGHTLY, DEALER REPLACED ENGINE OIL COOLER LINES 4) STUCK IN 4X4. DEALER REPLACED TRASNFER CASE ENCODER. SAID COMMON PROBLEM IN COLD WEATHER. HOWEVER, ONLY HAD ONE COLD SNAP, VEHICLE IS BRAND NEW, THOUGHT THIS WAS UNUSUAL. 5) THIRD DOOR HANDLE BROKE WHEN OPENING. REPLACED BY DEALER. TRICK TO OPENING IS HAVING TO PUSH IN ON DOOR BEFORE SQUEEZING HANDLE. FORGOT TO TELL TRICK TO OTHER PEOPLE, AND WHEN THEY TRIED TO GET INTO VEHICLE, BROKE HANDLE AGAIN. DEALER REPLACED AGAIN. STILL HAVE TO USE TRICK TO OPEN. COULD EASILY BRAKE AGAIN! *AK

Feb 18, 2000

Fire: 1

POWER TRAIN,ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL

1 complaint

WHEN VEHICLE IS IN OR OUT OF GEAR ENGINE IDLES, RPM WILL FLUCUATE BETWEEN 1600-3000 INTERMITTENTLY.DEALER EHAS REPLACED IDLE MOTOR, THROTTLE POSITIONER, NEW COMPUTER , AND NEW SOFTWARE FOR COMPUTER.AFTER SEVERAL ATTEMPTS TO CORRECT DEFECT, DEALER IS CLAIMING IT IS NORMAL. *AK

Nov 23, 1999

POWER TRAIN,VEHICLE SPEED CONTROL

1 complaint

AUTOMATIC TRANS IS SLIPPING WHEN COASTING AND THEN ACCELERATING. ENGINE RACES AND THEN THE TRANSMISSION SLAMS INTO LOW GEAR AND UPSHIFTS IMMEDIATELY. HAS OCCURRED 4 TIMES IN 10 MONTHS, CANNOT DUPLICATE ON DEMANDS. *AK

Nov 13, 1999

WHEELS

1 complaint

NO SUMMARY.

Dec 19, 1998

4.9/5.0

60 reviews

Frequently Asked Questions

How many problems does the 1999 GMC Sonoma have?

The 1999 GMC Sonoma currently has 83 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 1999 GMC Sonoma?

The most common problems reported for the 1999 GMC Sonoma 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 1999 GMC Sonoma problem data come from?

All problem and complaint data for the 1999 GMC Sonoma comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.