2021 Buick Enclave Complaints

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.

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.

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 vehicle or causing an accident. The vehicle was taken to the dealer for diagnosis and repair and the part has been on backorder since April 20, 2026. Multiple user forums report a plethora of other individuals experiencing the same issue.

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.

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.