Most common 2020 Buick Enclave problems
Share of the 60 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Buick Enclave complaints by model year
Best Enclave years: 2013, 2022, 2018. Years to avoid: 2025, 2010, 2008. Compare all years →
2020 Buick Enclave recalls (6)
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…
Remedy: GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall began March 22, 2021.
Tires
General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020.
Power train › Automatic transmission
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles.
Remedy: GM will notify owners, and dealers will inspect the start-stop transmission accumulator and replace it if any bolts are missing, free of charge. The recall began December 15, 2020.
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.
Remedy: GM will notify owners, and dealers will replace the fuel pump module. The recall began November 16, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick Customer service at 1-866-608-8080, Chevrolet…
Air bags › Side/window › Curtain › Inflator
General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles.
Remedy: GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020.
Structure › Frame and members
General Motors LLC (GM) is recalling certain 2020 Buick Enclave and Chevrolet Traverse vehicles. The right-hand frame rail in the engine compartment may be cracked.
Remedy: GM will notify owners, and dealers will inspect and, as necessary, replace the vehicle, free of charge. The recall began October 4, 2019.
What 2020 Buick Enclave owners say
Engine & cooling
The contact owns a 2020 Buick Enclave. The contact stated while driving at an undisclosed speed, there was an abnormal ticking sound coming from under the hood. Additionally, there was an abnormal exhaust odor inside the cabin of the vehicle. The vehicle was taken to the dealer, who determined that the passenger's side flex pipe bracket had cracked, causing damages to the catalytic converter. The contact was informed that the flex pipe and catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that there was no recall associated with the VIN. The failure mileage was 52,580.
Dear NHTSA Safety Team, I am submitting a formal safety complaint regarding my 2020 Buick Enclave (VIN: [redacted] ). My vehicle has experienced repeated engine shutdowns while driving, creating a serious safety hazard. Vehicle & Incident Details: * Make/Model/Year: 2020 Buick Enclave * VIN: [redacted] * Mileage: ~116,834 miles (purchased at ~62,000 miles, used) * Purchase Date: [Insert Month/Year] * Dealer: Kyle Durrence Claxton Dealership Repair History: * First repair attempt: TPMS system * Second repair attempt: Connector assembly block * Total out-of-pocket spent: $4,000+ * Despite these repairs, the vehicle continues to shut off unexpectedly while driving. Safety Impact: * Engine shuts off while the vehicle is in motion, creating a risk of collision. * Vehicle is my only mode of transportation. * Dealership has not provided a loaner vehicle. …
Electrical system
The contact owns a 2020 Buick Enclave. The contact stated that on several occasions, the electrical system malfunctioned. The contact stated that the hazard lights inadvertently illuminated, the horn inadvertently honked, and the tire sensor warning light illuminated. The vehicle was taken to the dealer where the failure could not be duplicated; however, the failure recurred. The contact stated that electrical system malfunction again and the vehicle was taken back to the dealer where the vehicle remained. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 28,500.
The rear liftgate locking mechanism failed to latch causing cargo to exit the vehicle where the car behind this car smashed into the cargo causing an accident. For whatever reason the rear door will not lock at all. The fuse was perfectly fine, appears the actuator is defective. No warning was given because the rear liftgate was open and unlatched. After realizing the gate would not close it would notify it was open but the power liftgate operates just fine, and when you activate it, it will push the gate closed and not give a warning until maybe you hit a bump in the road.
Transmission & drivetrain
The contact owns a 2020 Buick Enclave. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle lost motive power and was coasted to the shoulder of the roadway. No warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was in the process of being repaired. The manufacturer was made aware of the failure, and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 45,684.
The contact owns a 2020 Buick Enclave. While the contact's wife was attempting to park the vehicle, the transmission failed to shift into park as needed. The contact stated that after several attempts, the vehicle was parked. The contact used bricks to chock the wheels to prevent the vehicle from rolling backwards. The vehicle was towed to the dealer. The vehicle was diagnosed with a failed valve body and internal transmission failure. The contact was informed that the transmission needed to be replaced. The manufacturer was contacted by phone and a case was filed. The failure mileage was approximately 58,000.
2020 Buick Enclave engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.6L 6-cyl | 9-speed automatic | FWD | 18 / 26 / 21 |
| 3.6L 6-cyl | 9-speed automatic | AWD | 17 / 25 / 20 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2020 Buick Enclave a good car?
Based on 60 owner complaints filed with NHTSA, the 2020 Enclave rates average: about as many complaints as a typical year of the Enclave at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2020 Buick Enclave?
The engine & cooling — 18 complaints, 30% of all complaints for this model year, most often about exhaust system › emission control › catalytic convertor. Next are the electrical system (10) and transmission & drivetrain (9).
How many recalls does the 2020 Buick Enclave have?
There are 6 recalls for the 2020 Buick Enclave, the most recent from February 25, 2021 (tires). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Buick Enclave?
The best years by complaints, compared at the same age, are 2013, 2022 and 2018. Years to avoid or approach with caution: 2025, 2010 and 2008. See the full Buick Enclave years comparison.
At what mileage do 2020 Buick Enclave problems happen?
The median mileage reported in complaints is about 7,000 miles; 86% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.