2021 Buick Enclave Problems: 1 Known Issue
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Buick Enclave has 1 documented issue. None of the listed issues is rated critical; this is not a complete reliability assessment. DIY maintenance guides at au7o.io.
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All 1 Known Issue
NHTSA Recalls11 recalls
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.
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.
TIRES
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. The fuel pump's jet nozzle may have a plastic burr remaining from the manufacturing process, possibly causing a blocked nozzle and an insufficient fuel supply to the engine.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
General Motors, LLC (GM) is recalling certain 2014-2017 Buick Enclave, Chevrolet Traverse, and GMC Acadia vehicles. The driver's air bag inflator may explode during deployment, due to a manufacturing defect.
+ 6 more recalls. Check all on NHTSA.gov
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Frequently Asked Questions
What are the most common Buick Enclave problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Buick Enclave has 1 documented issue. The documented issue is: Torque Converter Clutch (TCC) Shudder. None are rated critical, but regular maintenance is recommended.
Is the Buick Enclave reliable?
The 2021 Buick Enclave has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2014-2021 Buick Enclave Torque Converter Clutch (TCC) Shudder?
Both the 6-speed (first-gen) and the 9-speed 9T65 (second-gen, 2018+) Enclaves are prone to a torque converter clutch shudder felt as a vibration or 'chuggle' during light acceleration, low-speed lockup, or while climbing grades. On 2018 models GM addressed low-speed TCC shudder… Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.