2021 BUICK Enclave Problems

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Complaints Reported

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Complaints by Component

SERVICE BRAKES

6 complaints

Brakes started grinding at 1000 miles. I will filed a complaint with the dealership and hope they record it. Now I have approximately 2100 miles on the car and it continues to sound and feel like my brake pad and rotor on the right front are grinding every time I apply the brakes. On July 23 2021 an own coming 18 wheeler did not see me and made a left turn in front of me at the traffic light . I step on the brakes lightly to stop but the car made the metal to metal sound and kept moving forward. So I had to jam on the brakes to stop. All wheels slid forward immediately except the front right. I think different brake pads and rotors are needed on this vehicle. This is definitely a safety issue to all drivers as well as others that are on the road.

Aug 25, 2021

No accident. I bought this brand new car on May 29, 2021, and have been experiencing brake issues. When I apply the brakes, there is a weird noise, grinding type and it feels like there is less traction (like when slowing down on snow). I have to apply more pressure to my brakes to slow the vehicle and come to a stop. The problem occurs quite often.

Jul 22, 2021

Brakes started grinding at 300 miles. I have filed a complaint with dealership who did record it and advised that it was a known issue that GM is working to resolve. I now have approximately 2000 miles on the car and it continues to sound and feel like my brakes are grinding every time I apply the brakes. Occasionally, when I apply the brakes and they are making the grinding feeling - it feels as if the vehicle is not wanting to slow down and I need to apply more pressure to my brakes. This definitely would be a safety issue to the driver as well as others that are on the road.

Jul 08, 2021

when applying the brakes it sounds lile metal on metal

Jun 06, 2021

I have a 2021 Buick Enclave Premium purchased 01.03.2021from Alden Buick-GMC been having problems with my brakes when I apply my brakes I have a brake noise grinding growling noise coming from the brakes. Took vehicle to dealership today 06.01.2021. Was told cause is Composition of brake material, dealers informed by GM not to replace any parts or attempt any repairs at this time. Was informed vehicle is safe to drive and GM engineering is working on a solution to this concern. I am concerned should the brakes not work properly when applied causing an accident. Would like to know if NHTSA is aware of this problem on the 2021 Buick Enclaves and 2021 Cadillac XT5-XT6, 2021 Chevrolet Blazer, Traverse, and 2021 GMC Acadia? Would like to know if NHTSA feels it is safe to drive?

Jun 01, 2021

+ 1 more complaint for this component

UNKNOWN OR OTHER

2 complaints

The catalytic converter has been replaced 3 times. The flex pipes has been repaired and replaced 4 times and the exhaust pipes has been welded on 5 times. The back tail pipe fail off while driving and had to be welded. The exhaust on this vehicle has given me many problems.

Jun 30, 2025

I JUST BOUGHT A NEW 2021 BUICK ENCLAVE AND THERE IS A NOISE COMING FROM THE WINDSHIELD OR THE WINDOW. SOUNDS LIKE MY WINDOW IS CRACKED. HOWEVER, WHEN I TRY TO LET UP THE WINDOW, THE WINDOW DOESN'T MOVE AND SOUND IS STILL THERE. THE NOISE IS THERE FROM ABOUT 45 MPG AND UP.

Mar 01, 2021

ELECTRICAL SYSTEM,STRUCTURE

2 complaints

Power Liftgate was functioning erratically and now it won't open at all. Currently there is no way to manually open the liftgate or access the rear of the vehicle without climbing through the vehicle to get to the trunk area. Electrical switches on inside, exterior of vehicle nor the keyfob will open the liftgate. Previously the liftgate opened on its own at unintended times and now it has simply quit working. Safety issue was when it was opening while driving. It is not currently doing this since it won't work anymore. Complete Failure happened around 54K miles.

Feb 24, 2025

The rear switch on our tailgate has failed and it allows the tailgate to open/close randomly on its own while the vehicle is locked even. I contacted Buick about the problem and they said didn’t care, but this can happen while the vehicle is moving down the road as well as when parked. It’s not necessarily a typical safety issue that are normally recalled for, but it does pose significant safety issues if you want your car to be locked and you come back from the store and it’s not and people are free to break it or if it were to happen while moving. We had this happen on our car at around 38,000 miles. From reading other Buick forums to try and figure out what the cause is, it sounds like it’s a somewhat common occurrence. It’s alarming that it can open while the vehicle is locked.

Feb 24, 2024

ELECTRICAL SYSTEM

1 complaint

Problem: The back hatch or trunk door pops open randomly on its own, many times a day. In a parking lot once. It hasn't happened while I've been driving. Safety issue because if it were to open while in public and a person wasn't in the vehicle, then anyone could enter the vehicle and theft could occur. Yes, the vehicle is available for inspection. A service center confirmed that it's the switch in the back hatch. No, the vehicle hasn't been inspected by manufacturer, police, or insurance. No, there haven't been any warning lights with this issue.

Aug 07, 2025

LATCHES/LOCKS/LINKAGES

1 complaint

The contact owns a 2021 Buick Enclave. The contact stated while driving at an undisclosed speed, the tailgate latch independently unlocked. The contact stated the failure had occurred several times. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The vehicle was scheduled for an inspection and diagnostic testing. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 39,700.

May 07, 2025

ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES

1 complaint

The contact owns a 2021 Buick Enclave. The contact stated that the door locks intermittently failed to operate as needed. The contact stated that the doors had failed to lock and unlock as needed. The contact stated that the failure mostly occurred after it had rained. The contact related the failure to the Manufacturer's Communication Number: 10211091. The dealer was notified of the failure and provided a cost for the diagnostic test and repair. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 62,188.

Mar 17, 2025

FUEL/PROPULSION SYSTEM

1 complaint

Catalytic converter was defective in October 2022. Had to wait to get part in. Vehicle taken to dealer for repair in December 2022/ Told that the second catalytic converter needed to be repaired. I stated that I was not aware that cars had two catalytic converters. Parts were ordered and replaced. Engine light came back on-again October 15, 2024. Portable CO detector in car was beeping when engine around time engine light came on. Not covered by warranty or insurance. A new car with 55, 000 miles to date should not have these issues.

Oct 24, 2024

SEAT BELTS

1 complaint

Passenger seat belt doesn't always work. Has to click several times

Jan 20, 2024

POWER TRAIN

1 complaint

AWD has vibration at highway speeds when engaged

Sep 11, 2022

ENGINE

1 complaint

When driving my car down the street today, it abruptly stopped in the middle of the street and and engine locked up. I could not shift gears. I could not put my car in neutral. I was literally stuck in the middle of the street with a vehicle that gave me no warning of malfunctioning. This is the 3rd transmission that I have had in this car. It is a 2021 Buick Enclave with just over 12,000 miles.

Feb 28, 2022

STEERING,LANE DEPARTURE

1 complaint

This car crosses the line before the lane keep assist does anything. The car nearly hit an oncoming car. I asked the Koons Tysons Buick Service rep about it and he said he has heard this from a number of people but noting has been done. It seems like a software patch is necessary to make this safe.

Aug 28, 2021

UNKNOWN OR OTHER,ENGINE

1 complaint

This vehicle has an auto stop start feature that the dealer refuses to override. The problem is that if you are stopped to make a left turn, the engine stops. When you need to go when there is a break in traffic, there is a hesitation to get going just when you need instant power. Also at stop lights or signs you tend to keep tapping the brake to keep it running resulting in a dangerous situation. Also if you are stopped and forget and get out of the car, it can start up and run into something. I just want the ability to disable this dangerous feature.

Jun 22, 2021

4.8/5.0

107 reviews

Frequently Asked Questions

How many problems does the 2021 BUICK Enclave have?

The 2021 BUICK Enclave currently has 19 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 2021 BUICK Enclave?

The most common problems reported for the 2021 BUICK Enclave 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 2021 BUICK Enclave problem data come from?

All problem and complaint data for the 2021 BUICK Enclave comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.