NHTSA lists 2 safety recalls and 26 owner complaints for the 2021 Buick Enclave. Most complaints involve service brakes (7) and electrical system (6). The EPA rates it 20–21 mpg combined, and NHTSA gives it 5 stars overall.
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.
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.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Enclave model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2008 | 536 |
| 2009 | 220 |
| 2010 | 275 |
| 2011 | 213 |
| 2012 | 133 |
| 2013 | 71 |
| 2014 | 292 |
| 2015 | 171 |
| 2016 | 142 |
| 2017 | 179 |
| 2018 | 66 |
| 2019 | 45 |
| 2020 | 61 |
| 2021 | 26 |
| 2022 | 14 |
| 2023 | 22 |
| 2024 | 7 |
| 2025 | 39 |
| 2026 | 3 |
“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.”
“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.”
“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.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Enclave FWD Auto 9-spd, 6 cyl, 3.6 L · Front-Wheel Drive | 18 | 26 | 21 | $2,950 | 420 |
| Enclave AWD Auto 9-spd, 6 cyl, 3.6 L · All-Wheel Drive | 17 | 25 | 20 | $3,100 | 440 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
2 safety recalls as of Nov 8, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 26 complaints with NHTSA. The most-cited components are service brakes (7), electrical system (6), seat belts (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2021 Buick Enclave at 20–21 mpg combined, depending on engine and drivetrain (2 versions rated).
NHTSA's New Car Assessment Program gives the 2021 Buick Enclave 5 out of 5 stars overall.