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What 24 owners told NHTSA about the 2021 Buick Enclave

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (24)Brakes (6)Electrical system (6)Body & structure (3)Engine (2)Latches & locks (2)Seat belts (2)Transmission & drivetrain (2)Fuel system (1)Lane Departure (1)Steering (1)

2 of 24 complaints match · Transmission & drivetrain · clear filters

Jun 17, 2026Transmission & 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 ODI 11744657

Sep 11, 2022Transmission & drivetrain

AWD has vibration at highway speeds when engaged

NHTSA ODI 11483900

Working with the data? Download all 24 complaints as CSV · fetched from NHTSA July 11, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Buick Enclave verdict →