2020 Buick Enclave Engine cooling Problems
- Complaints
- 2about this part
- Share
- 3%of 61 total for the year
- Median mileage
- 52,580miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2020 Buick Enclave, 3% of the 61 complaints for this model year. Where a mileage was given, the median is 52,580 miles.
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.
“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. …”
NHTSA complaint #11730120, filed 2026-04, 52,580 miles“The contact owns a 2020 Buick Enclave. The vehicle was reversed out of the driveway; however, after shifting into drive(D) and depressing the accelerator pedal, the vehicle jerked, vibrated, and the check engine warning light and other unknown warning lights illuminated. After several minutes, the vehicle functioned as intended. A short distance later, the failure reoccurred. The vehicle was taken to Auto Zone, but no cause for the failure was found. …”
NHTSA complaint #11727512, filed 2026-03Related service bulletins
- 10251890Mar 13, 2024This technical 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…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 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.
- 10250503Feb 7, 2024This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
Engine cooling: other model years
Other parts of the 2020 Buick Enclave
17 complaintsOther or unknown
14 complaintsElectrical system
10 complaintsTransmission and drivetrain
9 complaintsFuel system
8 complaintsBrakes
6 complaintsSeat belts
3 complaintsSteering
3 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