2021 Buick Encore GX Engine cooling Problems
- Complaints
- 4about this part
- Share
- 8%of 53 total for the year
- Median mileage
- 44,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2021 Buick Encore GX, 8% of the 53 complaints for this model year. Where a mileage was given, the median is 44,000 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 2021 Buick Encore GX. The contact stated while driving 70 MPH and accelerating, the check engine warning light illuminated. The vehicle was taken to an independent mechanic and was diagnosed with turbo charger failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 45,000.”
NHTSA complaint #11614068, filed 2024-09, 45,000 miles“The contact owns a 2021 Buick Encore GX. The contact stated while depressing the brake pedal to make a right turn, there was an abnormally loud popping and scrapping sound coming from underneath the vehicle. The contact pulled over to the side of the road. Upon exiting and inspecting the vehicle, the contact became aware that the exhaust manifold had detached from the vehicle. The vehicle was drivable and was currently parked at the residence. The vehicle was not diagnosed or repaired by a dealer or an independent mechanic. The manufacturer was not notified of the failure. …”
NHTSA complaint #11704676, filed 2025-12, 52,590 miles“The contact owns a 2021 Buick Encore GX. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that occasionally the vehicle jerked with the check engine warning light illuminated. In addition, the contact stated that the speed odometer showed a different speed that the digital speed odometer reading. The vehicle was taken to the dealer where it was diagnosed with a failed turbo charger. The contact was informed that the turbo charger needed to be replaced. …”
NHTSA complaint #11601598, filed 2024-07, 32,500 miles“The contact owns a 2021 Buick Encore GX. The contact stated while driving approximately 60 MPH, the check engine warning light illuminated with the “Engine Power Reduced message displayed. The contact stated that the vehicle lost motive power and the vehicle failed to exceed 25 MPH with the accelerator pedal depressed. The contact stated that the loss of power had become a recurring failure and occurred at various speeds. The contact had taken the vehicle to a local dealer, who diagnosed that the intercooler on the turbo needed to be replaced. …”
NHTSA complaint #11485494, filed 2022-09, 43,000 milesEngine cooling: other model years
Other parts of the 2021 Buick Encore GX
15 complaintsTransmission and drivetrain
11 complaintsBrakes
8 complaintsFuel system
7 complaintsOther or unknown
6 complaintsElectrical system
4 complaintsEquipment
2 complaintsForward collision avoidance
2 complaintsLane departure
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2021 Buick Encore GX
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