2015 Buick Encore Engine Problems
- Complaints
- 29about this part
- Share
- 23%of 124 total for the year
- Median mileage
- 50,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 29 complaints about the engine of the 2015 Buick Encore, 23% of the 124 complaints for this model year. Where a mileage was given, the median is 50,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Engine has 66,164 miles on it, it is using 1.4 quarts every 1500 to 2000 miles. I've kept maintenance on time! Had to add oil and at 68,132 miles had to put 4 quarts in this is second time. I'm told its all buicks are doing this? $12.00 every 2000 miles? Engine light says on! Napa - prodemand read out. This SUV is on city streets”
NHTSA complaint #11321842, filed 2020-04, 66,164 miles“Tried to stop before a red sign on a city street, the car accelerated on its own, passed the red light and run at about 60 MPH on a 35 MPH street for about half a mile and then stopped by itself. Pressing the brakes and even putting it on park did not help. I am lucky to be alive with my two passengers, and lucky not to kill anybody or cause property damage.”
NHTSA complaint #11243404, filed 2019-08, 50,150 miles“I purchased this vehicle in 2017 with only 45,000 miles, 1 year warranty was purchased. I have had constant issues with tires, but more seriously I have had over $2000 in repairs for intake manifold, air conditioning, various issues with tires, repaired thermostat. I had an ignition problem repaired in 2019 and now the check engine light keeps flashing, the motor doesn't want to engage and I am in fear for my life that I will be on the highway and it will just shut down, causing a collision!”
NHTSA complaint #11298433, filed 2020-01, 50,000 miles“Driving car locks up check engine light comes on says check power steering, we aimed to side of the shoulder car dies wouldn't start.we had to wait on side of a interstate for 3 hours to get a tow truck, very dangerous”
NHTSA complaint #11235058, filed 2019-07, 30,000 miles“Our 2015 Buick Encore broke down on 9/12 while driving home late at night traveling over the cuesta grade we had a tough time with acceleration and had to drive slow over the grade and on the highway all the way home. Our car was barley moving as we made drove it into our driveway. We had lost all acceleration. Our car was towed to the dealership on 9/13 . We were told we were just over the warranty mileage allowed 70,000 and had to pay for the repair . …”
NHTSA complaint #11032712, filed 2017-10, 75,000 milesRelated service bulletins
- 11026017Jun 5, 2025This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- 11024485May 15, 2025The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 11020254May 7, 2025This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in…
- 11017263Mar 25, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11016942Mar 4, 2025This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to…
- 11014230Jan 31, 2025This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11014233Jan 30, 2025This 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…
- 11013069Jan 9, 2025This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11011900Nov 22, 2024This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 3 | 33% |
| 2020 | 7 | 37% |
| 2019 | 33 | 38% |
| 2018 | 29 | 39% |
| 2017 | 35 | 39% |
| 2016 | 41 | 51% |
| 2015 | 29 | 23% |
| 2014 | 25 | 42% |
| 2013 | 21 | 40% |
Other parts of the 2015 Buick Encore
30 complaintsSteering
27 complaintsBrakes
21 complaintsAir bags
16 complaintsOther or unknown
16 complaintsTransmission and drivetrain
11 complaintsFuel system
7 complaintsExterior lighting
5 complaintsBody and structure
5 complaintsSuspension
5 complaintsVehicle speed control
5 complaintsElectronic stability control
4 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