14 complaints reported

2015 Buick Encore Engine

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
14
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Oct 2025

check engine light came onforP0299 code and heard that there's a lot of vehicles with turbos having this problem

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Oct 2025
Sep 2025

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. The manufacturer was not informed of the failure. The failure mileage was unknown.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Sep 2024
Jan 2025

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.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jan 2025
Nov 2024

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.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Nov 2024
Oct 2024

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.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Oct 2024
Oct 2023

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 another common issue with this car. I've read that there have been lawsuits against the company for using paint similar to what this is doing. 3. I had to replace my engine under two years of having it. It was still under warranty at the time, but I hadn't had the car very long at all.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Oct 2023
Apr 2023

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.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jan 2023
Dec 2022

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.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Dec 2022
Sep 2020

I I BOUGHT USED 2015 BUICK ENCORE BASE HAS 102,000 MILES ON IT BOUGHT IT ON MAY 30, 2020 AND ALREADY HAVE ENGINE LIGHT COMING ON CODE SAYS TURBO BYPASS VALVE CHECKED WITH MECHANIC SAYS IT WILL COST AT LEAST $ 1,600 TO FIX

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Sep 2020
Jul 2019

TL* THE CONTACT OWNS A 2015 BUICK ENCORE. WHILE OPERATING THE VEHICLE, THE CHECK ENGINE INDICATOR REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO GARBER GMC (5255 US-1, FORT PIERCE, FL) WHERE IT WAS DIAGNOSED THAT THE ENGINE TURBO CHARGER WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT WAS INFORMED THAT THE PART NEEDED TO REPAIR THE VEHICLE WAS NOT AVAILABLE DUE TO HIGH DEMAND. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 30,000.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jan 2019
Jun 2019

TL* THE CONTACT OWNS A 2015 BUICK ENCORE. WHILE DRIVING 60 MPH, THE VEHICLE STARTED TO HESITATE, THE TEMPERATURE GAUGE BEGAN TO INCREASE, AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED. THE CONTACT PARKED THE VEHICLE ON THE SIDE OF THE ROAD AND THEN TOOK IT TO AUTONATION CHEVROLET NORTH RICHLAND HILLS (LOCATED AT 7769 BOULEVARD 26, NORTH RICHLAND HILLS, TX 76180, (817) 264-7753). THE DEALER DIAGNOSED WITH MULTIPLE UNKNOWN FAILURES, INCLUDING AN OIL LEAK. THE VEHICLE WAS REPAIRED, BUT THE FAILURES CONTINUED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 95,000.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jan 2018
May 2019

PLASTIC VALVE COVER WARPED AT/BEFORE 83809 MILES, LEADING TO VACUUM LEAK/LOSS OF POWER.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jul 2019
Oct 2017

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 . WE ASKED GM TO CONTRIBUTE SINCE WE WERE BARLEY OVER THE WARRANTY MILEAGE ALLOWED".WE PICKED UP OUR CAR AFTER THE ORIGINAL TURBO WAS REPLACED ON 9/23 AND AGAIN THE CAR BEGAN MAKING NOISES ON THE CUESTA GRADE. AGAIN WE STARTED TO LOSE THE ABILITY TO ACCELERATE AND HAD TO DRIVE THE HIGHWAY AT A LOW SPEED TO MAKE IT HOME WITH THE CAR MAKING TERRIBLE SOUNDS AND NOISES . THIS SECOND TURBO HAD FAILED . WE HAD THE CAR TOWED BACK TO THE SAME DEALERSHIP ON 9/24. AFTER ABOUT A WEEK THE DEALERSHIP CALLED AND EXPLAINED THEY HAD INSTALLED ANOTHER TURBO WHICH HAD FAILED AGAIN AND THEY WERE WAITING ON PARTS TO REPLACE IT WHICH WOULD BE THE 3RD TURBO TO BE INSTALLED IN OUR CAR BESIDES THE ORIGINAL ONE THE MANUFACTURER INSTALLED . EACH TIME THE DEALERSHIP STATED ADDITIONAL THINGS WERE HAPPENING TO THE CAR WHEN THE TURBO WAS "GOING OUT" .WE RECEIVED A CALL ON 10 /9 (OVER TWO WEEKS FROM THE TIME THE CAR WAS TOWED TO THE DEALERSHIP) THAT THE TURBO WAS NOW REPAIRED AND WE COULD PICK UP THE CAR. WE ARE VERY CONCERNED FOR OUR SAFETY WITH THIS CAR. WHEN THE TURBO GOES OUT IT CAN CAUSE A WREAK SINCE WE HAVE TO TRAVEL ON THE HIGHWAY AND CUESTA GRADE AS WE LOSE ABILITY TO ACCELERATE.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Dec 2017
Sep 2016

HAD AN OIL CHANGE AT DEALER (TYPICAL 15,000 MILE CHECK). ON THE RETURN TRIP TO HOME, ENGINE STARTED TO MISS, SMOKE WAS COMING FROM BACK OF CAR LIKE OIL WAS BEING BURNED AND THE ENGINE "CHECK ENGINE LIGHT" CAME ON AND THE CAR WAS STOPPED. CALLED DEALER WHO HAD CAR TOWED TO THEIR LOCATION. WHILE WAITING FOR TOW, I CHECKED OIL LEVEL (IT WAS OVER FILLED BY AT LEAST A QUART (MAYBE MORE), DIP STICK WAS NOT SEATED PROPERLY TO CHECK OIL LEVEL. WHEN THE TOW TRUCK DRIVE ARRIVED AND HOOKED THE CAR UP TO TOW, HE INDICATED THAT THE PASSENGER SIDE BOLT THAT HOLDS THE ENGINE TO THE FRAME WAS MISSING. HE INDICATED THAT HE WOULD TELL THE DEALER (COLMAN BUICK) ABOUT THE PROBLEM. LATER ON THE SECOND DAY AT THE DEALER, THEY SAID THEY WERE WORKING ON THE CAR ALL DAY AND WERE IN PROCESS OF REPLACING ALL FUEL INJECTOR (DON'T KNOW HOW THEY COULD GO BAD IN 13K MILES) AND THE SMOKING OF THE CAR HAS BEEN REDUCED (SOMEHOW OIL IS GETTING PAST THE RINGS AND IS BEING BURNED.TWO DAYS AND STILL NO CAR.

Type: Vehicle, Vehicle: 2015 BUICK ENCORE, Manufacturer: General Motors, LLC
Incident: Jul 2016

Trend Over Time

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Quick Summary

The 2015 Buick Encore has 14 Engine complaints on file. Review the timeline above for detailed owner experiences.