2021 Buick Enclave problems, complaints & recalls

2021 Buick Enclave recalls (2)

• Recall 22V210000Mar 31, 202289 vehicles
  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.

  Risk: Roof rail air bags that do not deploy as intended increase the risk of injury 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. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212352140.

• Recall 21V472000Jun 24, 20216 vehicles
  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.

  Risk: Air bags that do not deploy as intended can increase the risk of injury.

  Remedy: Dealers will update the air bag calibration software, free of charge. Owner notification letters were mailed on July 29, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 and Buick customer service at 1-800-521-7300. GM's number for this recall is N212340220.

Recent 2021 Buick Enclave complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

1. Filed Jul 28, 202690,000 miNJSeats & 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…

   NHTSA complaint #11753269 · source
2. Filed Jun 17, 2026SCTransmission & Drivetrain

   The muffler and tail pipe has fallen off 6 times and ive had to get repaired. I believe it is due to the bad torque converter that others have complained about and goggle says that is a likely failure on the buick.

   NHTSA complaint #11744657 · source
3. Filed Jun 15, 2026WIBody & Structure

   The liftgate of my vehicle began opening on it's own at no apparent interval, but now occurs frequently while waiting for a repair part to come in. This has happened while parked - including in public parking lots (where someone malicious could have entered the vehicle and the closed the liftgate after entering the vehicle - I would have been unaware of their presence) as well as while driving, which presents multiple safety issues including belongings falling out of the…

   NHTSA complaint #11744102 · source
4. Filed Jun 10, 2026COSeats & Seat Belts

   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.

   NHTSA complaint #11743361 · source
5. Filed Apr 28, 2026MIElectrical System

   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…

   NHTSA complaint #11734364 · source
6. Filed Apr 18, 2026MAElectrical SystemOther / Unknown

   The trunk latching system malfunction even when it is set to OFF. When the vehicle is off or running it will open automatically then will not shut unless you turn the car on then shut the car off put on lock then unlock the car. While driving short distances the lift gate will open enough to trigger the alarm. I have woke up my trunk is open. It is safety for me and others due to exposure of material in trunk falling out. Safety for me sitting in car this happens all the…

   NHTSA complaint #11732015 · source
7. Filed Aug 7, 2025MNElectrical System

   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,…

   NHTSA complaint #11679079 · source
8. Filed Jun 30, 2025SCOther / Unknown

   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.

   NHTSA complaint #11670139 · source

Compare the 2021 Buick Enclave with another vehicle →

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology