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Engine coolingPart report

2015 Buick Encore Engine cooling Problems

Complaints
3about this part
Share
2%of 124 total for the year
Median mileage
79,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 2015 Buick Encore, 2% of the 124 complaints for this model year. Where a mileage was given, the median is 79,000 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 a 2015 Buick Encore. The contact stated that while driving at an undisclosed speed, the engine revved and he was unable to shift the vehicle into the intended gear. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the turbocharger needed to be replaced. The contact referenced TSB Number: PIP5495H for the turbocharger. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The approximate failure mileage was 79,000.”

NHTSA complaint #11497643, filed 2022-12, 79,000 miles

“The contact owns a 2015 Buick Encore. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from underneath the vehicle, before the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway, where the failure persisted. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the catalytic converter. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.”

NHTSA complaint #11627505, filed 2024-11

“The contact owns a 2015 Buick Encore. The contact stated that while depressing the accelerator, the vehicle hesitated before accelerating. The contact became aware of oil underneath the vehicle on the driveway, resulting in a complete loss of power. The vehicle leaked oil and lost the vehicle lost power twice. The check engine warning light was illuminated. The contact inspected the vehicle and determined that the mass air flow sensor had failed. The MAF sensor was replaced twice, the Oxygen sensors were replaced three times, and the turbocharger was replaced once. The failures persisted. …”

NHTSA complaint #11687354, filed 2025-09

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2022113%
201978%
201834%
201778%
201634%
201532%
201435%
201324%

Other parts of the 2015 Buick Encore

Electrical system
30 complaints
Engine
29 complaints
Steering
27 complaints
Brakes
21 complaints
Air bags
16 complaints
Other or unknown
16 complaints
Transmission and drivetrain
11 complaints
Fuel system
7 complaints
Exterior lighting
5 complaints
Body and structure
5 complaints
Suspension
5 complaints
Vehicle speed control
5 complaints

← All problems reported for the 2015 Buick Encore

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