Problems · by component
2015 Buick Encore engine problems
29 owner complaints to NHTSA about the 2015 Buick Encore cite engine, 23% of all 124 complaints for this model year.
Complaints
29
23% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine
Verbatim from NHTSA complaints, newest first
“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.”
“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 this is a manufacture defect that is known. It puts me as risk as the car is not preforming properly and it jumps and does not go properly when it has the issue arise. I will get hit for not going after I come to a stop and will not accelerate properly. This issue appeared 2 months after I purchased the car and I took it to a shop who told me he has tried to contact Buick to cover the repairs for others and gets no where. I think that the manufacture knows and will not repair something that is not the owners fault but there shafty part and they know this as it was a recall in other years of my vehicle.”
“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.”
“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 were no recalls on the VIN. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 86,600.”
“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.”
“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 and I was able to accelerate. This has been an ongoing issue. Nobody seems to know what is causing this or how to fix it. 2. I start my car and put it into gear, and it shakes like it wants to stall. I quickly put it back into park and wait a few minutes before putting it back into gear. It also does this while I am waiting at lights at intersections. That is very concerning because if i stall mid intersection this could cause and accident and or injury to me or other motorists. No lights appear when this happens. Again, nobody knows why it does this or how to correct it. 3. Back of my car stared chipping paint for no reason. There was no trauma to cause this to occur. Apparently, this is…”
Showing 6 of 29 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.