2019 Buick Encore: check engine light

Filed Oct 19, 2026 · Engine · 30,000 miles · OH

The contact owns a 2019 Buick Encore. The contact stated that while driving at various speeds, the vehicle hesitated upon depressing the accelerator pedal. Additionally, the vehicle hesitated to start after multiple attempts. The vehicle was taken to the independent mechanic where it was purchased, and the mechanic replaced the oxygen sensor. Despite the repair, the failure recurred intermittently. The contact stated that the check engine warning light illuminated, and the vehicle was taken to a second independent mechanic. Diagnostic trouble codes retrieved via an OBD-II scanner indicated catalytic converter issues; however, the mechanic determined the failure was related to the flex plate. The contact was referred to a dealer, where the contact was informed that the repair was not covered under warranty. The manufacturer was notified of the failure and assigned a case number. The contact was referred to the federal safety agency Hotline to file a complaint. The vehicle was not repaired. The failure mileage was approximately 30,000.

Filed May 4, 2026 · Engine, Fuel system · OH

My check engine light continues to turn on and the code is related to the wastegate actuator/turbo charger. My car is running rough and doesn't accelerate properly. It sometimes rocks back and forth when I try to accelerate. Which is a KNOWN PROBLEM WITH BUICK. GMC REFUSES TO RECALL THIS WELL DOCUMENTED ISSUE. And naturally, it becomes an issue after the warranty expires. Mileage: 67,067

Filed Feb 18, 2026 · Engine · 63,360 miles · NC

The contact owns a 2019 Buick Encore. The contact stated that while driving at various speeds, the check engine warning light remained illuminated, with the odor of burning oil inside the cabin of the vehicle, before the vehicle stalled. The vehicle was taken to a dealer who diagnosed the vehicle and determined that the valve cover, intake manifold, and oxygen sensors were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 63,360

Filed Jan 26, 2026 · Engine · 63,500 miles · KY

The contact owns a 2019 Buick Encore. While driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to a private mechanic, who diagnosed the vehicle with a blown turbo charger caused by low oil pressure. The contact stated that the turbo charger was previously replaced due to the same failure. The contact stated there was a recall for the for 2017-2018 Buick Encore for the same issue; however, the 2019 model year was not included. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 63,500.

Filed Dec 28, 2025 · Acceleration, Suspension · OH

When I'm driving sometimes the car seems like it's about to cut off or something & the check engine light plus stabilizer track message bones on & I start losing power & it's happened more than 10 times ! I let the car sit for a few minutes & it works !

Filed Nov 15, 2025 · Engine, Fuel system · IL

My check engine light has been appearing off and on for a few months. I received a diagnostic code of P0325 TWICE by two different professional technicians. I ordered an OEM knock sensor, hired a technician to replace the knock sensor, drove about 10 miles and the check engine light came back on. Then, I received a diagnostic code of P-1101, and the recommended solution is to replace the intake manifold and all necessary gadgets. After speaking with professional technicians and doing thorough online research, I discovered that General Motors issued a service bulletin No. 19-NA-101, dated July 2024, covers certain 2013–2019 model vehicles (including Buick Encore with 1.4L turbo) for oil consumption and/or leaks caused by a missing non-return valve in the intake manifold. The bulletin acknowledges that the intake manifold design on these 1.4L turbo engines has a non-return (check) valve or PCV system component inside the manifold that can fail or go missing, leading to issues like boost/vacuum leaks, oil consumption, engine performance faults. •The PCV valve is non-serviceable (you can’t replace it separately), meaning the only fix is replacing the manifold — which GM calls out in the bulletin. If GM or Buick hasn't issued a recall they should offer goodwill assistance especially since this is a defect on their end.

Filed Sep 2, 2025 · Engine, Transmission · PA

•On January 25th 2025 I paid approximately $3,383 for a turbocharger repair on my 2019 Buick Encore. This included a turbocharger oil return tube, turbocharger oil supply and re, intercooler, int. man. & vAL. COV. Kit, R&R inter cooler, R&R turbocharger, R&R intake manifold, and turbocharger assembly. Since that time, the same problem has recurred and I have returned the vehicle to the same location on four separate occasions without resolution. It is currently available for inspection. •August 11th, 2025: Vehicle stalled in the middle of an intersection as I attempted to accelerate from a stop sign, placing me in immediate danger of collision. •I have had the check engine code read by another independent service center. •No one else has inspected the vehicle •The check engine light has come off and on since January when the problem began after visiting Mavis Discount Tire in sinking spring for a routine oil change. There were no symptoms prior to this first failure that signaled the issue that resulted in the repair. Prior to the incident on August 11th there had been repeated symptoms of an issue even when the check engine light was off. These issues included overheating, smoking, lack of acceleration, and stalling.

Filed Jun 4, 2025 · Fuel system, Transmission · WI

My daughter owns a 2019 Buick Encore and the check engine light keeps going on. She took her car to the dealer and was told that it needed a Turbo Bypass Valve and Solenoid valve. The car is just a few months within the 10 year powertrain warranty and the dealer refused to cover as defect. She drives on the freeway 45 minutes to/from work and this is a serious issue that causes the engine to rev hard and not stop as well as stall intermittently.

Filed May 29, 2025 · Engine, Fuel system · TX

They sold me a car and 2 days later the check engine light came on I fixed it then a second time it came on I fixed again then a third time it came on I fixed it again now this is the 4th time that this light has come on and I called up there they tell me well we can see about putting you in another car. I go up there today and they tell me well the loan place you chose won’t do it because what’s on my credit so I ask if they can fix it for free because I can’t afford to pay 500$ 9’ car note and 500$ for car Insurance they said it’s nothing they could do to help me I asked for a manger Chelsea , she walked passed me 3 times and one of the times was to go smoke a cigarette didn’t even try to aknowlege me until I called my salesmen Veronica too say she walked passed me 3 times and didn’t say anything I don’t appreciate im working hard to try and pay for this car and. I felt as if no one cares I feel as if I was sold a lemon and they continue to say well we didn’t sale you a lemon how would you know if it’s a lemon or not prior to buying know one knows that

Filed Mar 25, 2025 · Engine · 68,000 miles · WI

The contact owns a 2019 Buick Encore. The contact stated that while attempting to accelerate from a stoplight, the engine revved up before accelerating. While the vehicle was accelerating, the check engine warning light illuminated. The vehicle was taken to a certified mechanic, who diagnosed that the wastegate for the turbocharger was stuck, causing the turbocharger to fail. The contact was informed that the turbocharger needed to be replaced. The vehicle was not repaired. The contact became aware of a TSB for 2017-2018 Buick Encore vehicles under TSB Number: N232395330; but the 2019 Buick Encore was not included. The manufacturer was not informed of the failure. The failure mileage was 68,000. The VIN was not available.

Filed Feb 7, 2025 · Engine · 123,000 miles · TN

The contact owns a 2019 Buick Encore. The contact stated while driving 65 MPH on the highway, the vehicle started to lose motive power, started jerking back and forth, and there was white smoke coming from the tailpipe. The contact attempted to depress the accelerator pedal; however, the vehicle failed to respond as needed. The check engine warning light was illuminated. The contact merged to the side of the road before driving to the residence. The vehicle was driven to an independent mechanic where it was diagnosed with turbocharger failure. The local dealer was contacted; however, the vehicle was not repaired. The manufacturer was made aware of the failure and referred to the federal safety agency Hotline. The failure mileage was approximately 123,000.

Filed Feb 4, 2025 · Engine, Fuel system · OH

My engine light came on. The repair shop said I have to replace the fuel pump control module and that it is a known issue with Buick. I was advised not to drive the car. I am concerned that I could have been out and the car could have broken down. The car doesn’t even have 50,000 miles on it. This should not happen.