Most common 2021 Buick Enclave problems
Share of the 26 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Buick Enclave complaints by model year
Best Enclave years: 2013, 2022, 2018. Years to avoid: 2025, 2010, 2008. Compare all years →
2021 Buick Enclave recalls (2)
Air bags › Side/window › Curtain
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Traverse and 2021-2022 Buick Enclave vehicles. The harness connector to the left or right side roof rail air bag may have incompatible electrical terminals, which could prevent the air bags from deploying in a crash.
Remedy: Dealers will replace the harness connector to the roof rail air bags, free of charge. Owner notification letters were mailed on April 29, 2022.
Air bags › Sensor › Frontal impact
General Motors, LLC (GM) is recalling certain 2021 Chevrolet Traverse and Buick Enclave vehicles. During service by dealers, certain vehicles may have received incorrect air bag calibration software that may affect frontal airbag deployment.
Remedy: Dealers will update the air bag calibration software, free of charge. Owner notification letters were mailed on July 29, 2021.
What 2021 Buick Enclave owners say
Brakes
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?
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.
Electrical system
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.
About six months ago the tailgate foot sensor failed and has not worked. Since then, the tailgate began randomly opening on its own, mostly when the car is parked and shut off, but as of today(4-28-2026) it started occurring while I'm driving. In addition to the hazard of items falling from my vehicle unto the highway and/or other cars, the only way for me to close the tailgate from the driver's seat is to place the transmission in Park and push the tailgate button. Other than that, I must stop and get out and physically close it. Both actions are potential risks depending on my location and the traffic around me. I've brought this in to the dealership service department in January 2026 with this complaint, but was told they couldn't find anything wrong with it. In the meantime, it continues to get worse.
Seat belts
The contact owns a 2021 Buick Enclave. The contact stated that while driving at an undisclosed speed with the contact and her daughter inside the vehicle, her daughter's seat belt became extremely tight. The seat belt failed to unlatch, forcing the contact to cut the seat belt to remove her daughter from the seat. The contact believed that the seat belt had malfunctioned. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 90,000.
Passenger side seatbelt latch gets stuck so when trying to buckle it doesn't go in, you have to try multiple times. Get a notification on dashboard every once in a while saying seatbelt or airbag issue contact dealer. Warning light (air bag and seatbelt system) lights up. My safety is put at risk as I am pregnant and not sure whether the seatbelt will buckle or not while I'm in the passenger seat. I have not taken this In to be looked at yet.
2021 Buick Enclave engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.6L 6-cyl | 9-speed automatic | FWD | 18 / 26 / 21 |
| 3.6L 6-cyl | 9-speed automatic | AWD | 17 / 25 / 20 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2021 Buick Enclave a good car?
Based on 26 owner complaints filed with NHTSA, the 2021 Enclave rates better than average: 45% fewer complaints than a typical year of the Enclave at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Buick Enclave?
The brakes — 7 complaints, 27% of all complaints for this model year. Next are the electrical system (6) and seat belts (3).
How many recalls does the 2021 Buick Enclave have?
There are 2 recalls for the 2021 Buick Enclave, the most recent from March 31, 2022 (curtain). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Buick Enclave?
The best years by complaints, compared at the same age, are 2013, 2022 and 2018. Years to avoid or approach with caution: 2025, 2010 and 2008. See the full Buick Enclave years comparison.
At what mileage do 2021 Buick Enclave problems happen?
The median mileage reported in complaints is about 62,000 miles; 33% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.