2020 Buick Enclave Fuel system Problems
- Complaints
- 8about this part
- Share
- 13%of 61 total for the year
- Median mileage
- 24,550miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the fuel system of the 2020 Buick Enclave, 13% of the 61 complaints for this model year. Where a mileage was given, the median is 24,550 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“After filling up fuel, vehicle runs rough, hesitates, and stalls at idle speeds. This occurs after every fill up. The check engine light comes on and states an issue with the anti-lock brake system. I’ve had the vehicle checked by Buick 5 times and they have not been able to replicate the issue, so troubleshooting stopped. I know a recall came out this July for 2019 Buick Enclaves to replace the evaporative emissions purge valve due to not fully closing. …”
NHTSA complaint #11548946, filed 2023-10“Vehicle would not go into park fortunately we were in a safe location to avoid a possible accident or injury. The vehicle has electronic transmission shifting. According to the dealership the park solenoid in the transmission valve body failed. This prevented us from putting the vehicle in park so it could safely be shut off. We were able to set electronic parking brake but ignition continued to remain on. Eventually had to disconnect the negative battery terminal. Had vehicle towed to dealership but could not release electric park bake or start vehicle with battery terminal reconnected. …”
NHTSA complaint #11610097, filed 2024-08“The contact owns a 2020 Buick Enclave. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where the evaporative emission system, vapor canister purge solenoid, and the control solenoid were replaced; however, the failure persisted. The contact stated that the vehicle was difficult to start, and the instrument cluster gauges were fluctuating. The contact stated that the failure had occurred after refueling the vehicle. The contact stated that the failure had progressively worsened. …”
NHTSA complaint #11673314, filed 2025-07, 42,000 miles“The vehicle developed an exhaust leak caused by both weld points on the front exhaust pipe breaking. A dealership inspected the vehicle and confirmed that the exhaust welds had failed, creating a hole in the exhaust pipe and triggering a P0420 catalyst efficiency code. The failure occurred at approximately 31,500 miles. The exhaust leak caused increased exhaust noise and emissions warning codes. The dealership recommended replacement of the front exhaust pipe assembly. …”
NHTSA complaint #11724643, filed 2026-03Related recalls
- 20V639000Oct 15, 2020General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, Cadillac XT6, Chevrolet Traverse, and GMC Acadia vehicles. The fuel pump's jet…Covers: Buick Enclave 2020, Cadillac XT6 2020, GMC Acadia 2020 +2 more
Related service bulletins
- 11017173Mar 21, 2025This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
- 11007095Aug 7, 2024This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles…
- 11004727Jun 29, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10253061Mar 4, 2024This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 3% |
| 2023 | 3 | 14% |
| 2021 | 1 | 4% |
| 2020 | 8 | 13% |
| 2019 | 2 | 5% |
| 2018 | 5 | 8% |
| 2017 | 2 | 1% |
| 2016 | 2 | 1% |
| 2015 | 3 | 2% |
| 2014 | 5 | 2% |
| 2013 | 3 | 4% |
| 2012 | 8 | 6% |
| 2011 | 11 | 5% |
| 2010 | 11 | 4% |
| 2009 | 5 | 2% |
| 2008 | 10 | 2% |
Other parts of the 2020 Buick Enclave
17 complaintsOther or unknown
14 complaintsElectrical system
10 complaintsTransmission and drivetrain
9 complaintsBrakes
6 complaintsSeat belts
3 complaintsSteering
3 complaintsEngine cooling
2 complaintsBody and structure
2 complaintsSuspension
2 complaintsAir bags
1 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2020 Buick Enclave
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology