2021 Buick Enclave problems, complaints & recalls
Most-reported problem areas: Service Brakes (7) · Structure:body (3) · Seat Belts (3)
🧭 Reliability snapshot
Compared against other Buick Enclave model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Air Bags:side/Window:curtain 2022-03-31 · campaign 22V210000 · 89 vehicles
Defect: 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.
Fix: 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.
Air Bags:sensor:frontal Impact 2021-06-24 · campaign 21V472000 · 6 vehicles
Defect: 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.
Fix: 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.
Service bulletins (658)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-08-20 · PIC6551C · Service Bulletin/Repair Instructions
this preliminary information communicates to dealer to perform a mec reset for wireless projection issues
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-06-23 · PIT5966F · Service Bulletin/Repair Instructions
this preliminary information communicates an issue with an ota pending message still displayed after an ota event and how to reset/clear the message.
Unknown Or Other 2026-05-11 · PIC6423A · Service Bulletin/Repair Instructions
pi created to provide gm dealers with information on gathering information for projection issue
Showing the 6 most recent of 658 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-01 · Service Brakes“eboost intermittent. loss of brakes. …”
2026-07-28 · Seat Belts · 90,000 mi“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…”
2026-06-17 · Power Train“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. …”
2026-06-15 · Structure:body“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 unaw…”
2026-06-10 · 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 w…”
2026-04-28 · Electrical 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 w…”
2026-04-18 · Unknown Or Other“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 i…”
2025-08-07 · Electrical 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 inspec…”
2025-06-30 · Unknown Or Other“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. …”
2025-05-07 · Latches/Locks/Linkages:tailgate:latch · 39,700 mi“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.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.