2015 Buick Encore engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Jul 29, 2026OHEngine

   Weber road auto service replaced the engine using county PRC and out-of-pocket funds, and the newly installed used engine has an active engine oil cooler leak, creating an immediate vehicle fire and sudden engine stalling hazard. Also there’s a leak at the ac compressor, condenser and coupler valves. This was discovered by Buckeye Auto Service. No repairs have been made as first shop keeps brushing me off.

   NHTSA complaint #11753438 · source
2. Filed Jun 26, 2026INEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   The turbo in my vehicle has a check engine light come on and than the engine does no act right. The repair shop that looked at car stated that the manufacture knows this is a known issue and they have not made a recall as several cars my year range has this going on. If this is a known issue why is there no recall. I worked had for my car and I can not afford the repair of a know issues with the turbo as it cost a lot and I should not have to cover this as it is apparent…

   NHTSA complaint #11746663 · source
3. Filed Sep 15, 2025COEngine

   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…

   NHTSA complaint #11687354 · source
4. Filed Jan 28, 2025FLEngine

   Leaking oil from oil coolant pipe under car and timing chain or belt gasket blowing oil.i have seen on Google in 2016 a stop update on 2015 had issue with the s02ame problem.

   NHTSA complaint #11639035 · source
5. Filed Nov 26, 2024OHEngine

   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…

   NHTSA complaint #11627505 · source
6. Filed Aug 29, 202486,600 miTXEngineTransmission & Drivetrain

   The contact owns a 2015 Buick Encore. The contact stated that the vehicle was sputtering and jerking while attempting to accelerate while driving at various speeds, and while the vehicle was idling. The check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the catalytic converter had failed and needed to be replaced. The vehicle had not been repaired. The manufacturer was informed about the failure and confirmed there…

   NHTSA complaint #11611564 · source
7. Filed Feb 10, 2024MIEngine

   Massive coolant leak. Been happening on and off since I bought the car in nov2019. Taken to several shops and have had replacement done and it goes right back to leaking. This time the shop believes it's leaking into the engine itself.

   NHTSA complaint #11571192 · source
8. Filed Oct 13, 2023MEEngine

   It seems like the 2015 Buick Encores are having a lot of the same issues. I do not see a recall for any of these issues. 1. loss of power when trying to accelerate. This has almost caused an accident for me. I had plenty of time to pull out, but my car wouldn't speed up. Thankfully the car coming up noticed I was having issues and slowed down. This also may affect the performance and fuel efficiency of the vehicle. No warning lights came on. It eventually corrected itself…

   NHTSA complaint #11549826 · source
9. Filed Jul 17, 2023OKEngineTransmission & Drivetrain

   The turbocharger on my car is failing and had a verified check engine light code PO299. The car is a 2015 with low miles, only 53k. This is an obvious manufacturer defect/defective product with an estimated cost of $1500.00 to replace, according to an ASE independent auto shop I use for all my vehicles. The car is unfortunately not under any warranty anymore, to my knowledge. There is no recall on this part but online on Buick forums and other credible sites, you will find…

   NHTSA complaint #11532768 · source
10. Filed Feb 4, 2023MNEngine

    The PVC valve was frozen and leaked oil everywhere. I was told by a mechanic at my dealership that it is a known issue. They want $3000 to install a heater unit.

    NHTSA complaint #11505584 · source
11. Filed Dec 29, 2022NYElectrical SystemEngineAcceleration & Cruise Control

    My car started surging when I was sitting at a traffic light and as I was crossing abridge The check engine light came on - 2 codes - transmission module 0700 and module 0073

    NHTSA complaint #11499335 · source
12. Filed Dec 15, 202279,000 miTXEngine

    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…

    NHTSA complaint #11497643 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology