2012 Buick LaCrosse engine problems

What owners report

• “2012 Buick LaCrosse V6 (Fairfax Plant). The vehicle suffered a sudden, complete loss of engine power and forward propulsion while traveling at highway speed, cutting off mid-drive with no warning. This occurred alongside a persistent StabiliTrak malfunction; the dash showed repeated "Service StabiliTrak" warnings before the failure, then turned bright orange with multiple warning lights and a message instructing me to activate my turn signal and pull over before RPMs dropped to zero. Because pow…”

  NHTSA complaint · filed 07/10/2026

• “All the specific details are unknown, but I had a mechanic work on my car and the problem that he had to fix. He stated that it should’ve been detected, but it was something wrong with my car, letting me know that I had the problem and also I have to keep replacing my camshaft timing Solenoid my car keeps giving me error codes P0011 and P0128”

  NHTSA complaint · filed 12/19/2025

• “The contact owns a 2012 Buick LaCrosse. The contact stated while driving approximately 20 MPH, the vehicle stalled. The contact stated no warning light was illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the engine had seized and needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 170,000.”

  NHTSA complaint · filed 11/16/2023

• “The charging system in my vehicle is no longer working. There's been a recall done for the charging system. It was fixed back in 2013 before long before I bought the vehicle. It's only been nine years since it's been fixed and now it's not working again. I'd like this matter to be looked into as I believe it's faulty at no fault of my own.”

  NHTSA complaint · filed 11/25/2022

• “The contact owns a 2012 Buick Lacrosse. The contact stated that while driving approximately 70 MPH, the vehicle stalled on several occasions. The stability trac and check engine warning lights were illuminated. The contact was able to restart the vehicle after several attempts. The vehicle was towed to the local dealer however, the mechanic was unable to duplicate the failure. The mechanic was unable to retrieve a fault code. The vehicle was taken to an independent mechanic who provided several …”

  NHTSA complaint · filed 05/31/2022

• “Car shut off while in stopping position. Happen 3 times before supposed problem was fixed and then two more time after oil change and transmission control module fixed. Dealership does not know what the issue. Thankful each time I was not driving on interstate.”

  NHTSA complaint · filed 11/15/2021

• “The contact owns a 2012 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, the oxygen sensor warning light was illuminated. The vehicle was taken to an independent mechanic and the mechanic reset the oxygen sensor warning light. However, after driving for 400 miles, the oxygen sensor warning light illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was app…”

  NHTSA complaint · filed 09/10/2021

• “The contact owns a 2012 Buick LaCrosse. The contact stated that the check engine warning light was illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 44,000.”

  NHTSA complaint · filed 08/24/2021

Unverified owner reports from NHTSA's public complaint database.

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