2018 Buick Encore Engine cooling Problems
- Complaints
- 3about this part
- Share
- 4%of 74 total for the year
- Median mileage
- 103,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2018 Buick Encore, 4% of the 74 complaints for this model year. Where a mileage was given, the median is 103,000 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 2018 Buick Encore. The contact stated while the vehicle was parked, the contact's husband noticed there was oil leaking onto the ground underneath the vehicle. The contact’s husband, who is a certified mechanic, diagnosed the vehicle and determined that the failure was caused by a leaking oil cooler pipe. The contact was informed that the oil cooler pipe needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the leak was persistent. The manufacturer was made aware of the failure but provided no assistance. …”
NHTSA complaint #11633066, filed 2024-12, 152,000 miles“The contact owns a 2018 Buick Encore. The contact stated while driving at various speeds, the check engine warning light would illuminate as the average miles per gallon decreased. The vehicle was taken to the dealer who stated that the clamps for the turbo hoses were loose. The clamps and hoses were realigned and tightened. The contact stated that the failure recurred 2 months later. The vehicle was taken back to the dealer and the same diagnosis along with a red thread failure. The clamps were realigned and tightened again. The contact stated that the air filter hose was also loose. …”
NHTSA complaint #11434883, filed 2021-09, 54,000 milesRelated 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…
- 10250285Feb 14, 2024Special Coverage - Certain vehicles equipped with a 1.4L engine may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction…
- 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…
- 10250272Jan 30, 2024This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10247192Dec 8, 2023This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
Engine cooling: other model years
Other parts of the 2018 Buick Encore
29 complaintsBrakes
11 complaintsAir bags
10 complaintsOther or unknown
10 complaintsTransmission and drivetrain
10 complaintsElectrical system
9 complaintsFuel system
6 complaintsSteering
6 complaintsElectronic stability control
5 complaintsVehicle speed control
3 complaintsSeat belts
2 complaintsExterior lighting
1 complaints
← All problems reported for the 2018 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