2011 Buick Lacrosse electrical system problems

“The contact purchased a 2011 Buick Lacrosse. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 143,939 and at the time of registration, it was discovered that the mileage was 231,952.”

“I am reporting a serious safety defect involving a 2011 Buick LaCrosse CXL. The vehicle has repeatedly shut off while being driven, creating a dangerous situation. The issue first occurred in January 2026. The vehicle was later towed for repair in February 2026, and I was told the issue had been fixed and picked up the vehicle 3/20/2026 and gave 1600. However, on April 9, 2026, the vehicle shut off again while driving. This issue has occurred multiple times and persists despite repair attempts. When the vehicle shuts off, it creates a loss of power and poses a significant safety risk in traffic. I am concerned that this may be a broader safety issue and am requesting that this defect be documented and investigated.”

“#07-06-04-019F: Intermittent Malfunction Indicator Lamp (MIL} Illuminated, OTC Pl':1.~J with Reduced Engine Power (Repair Instrument Panel (IP) to Body Harness Connector). Lost power on I-84 and had to cross over the right lane because I had no power, barely missing a rear end collision.”

“The contact owns a 2011 Buick LaCrosse. The contact stated while the vehicle was parked, it started on its own and would shut down on its own. The contact heard a roaring noise coming from the vehicle. The vehicle was not diagnosed. The dealer was not contacted. The manufacturer was not contacted. The failure mileage was 72,000.”

“The component is the brakes and the brake pedal while not engaging the brakes they remained on even after the vehicle was shut off .the vehicle brake lights remained on this was not duplicated when I took the car in by the dealer of how the brake remains engaged we even when not being used I would have to release the break by pulling it up with my foot while driving . This was duplicated and witnessed by two others the dealership where I bought the car and a trusted mechanic. which no avai there was no warning light indicating any type of concern prior to it doing this. the brake pedal being slightly stuck my transmission shifts not properly and hot feeling to the car now I have a warning saying that AC will not work due to the overheating of my engine which I believe to have repaired however the repair that was believed to be the problem obviously wasn't the problem because the light still remains on and the fan runs continuously the minute I start the car to the time I shut the car off I live in North Dakota and it is -1 today and the fan continues to run at all times and the warning light is on cooling fan the car lunges at times which is easy to lose…”

“TL* THE CONTACT OWNS A 2011 BUICK LACROSSE. THE CONTACT STATED THAT THE SUN ROOF SHADE BUTTON WAS DEFECTIVE AND FAILED ROLL BACK AS INTENDED. THE CONTACT TOOK THE VEHICLE TO JIM HUDSON BUICK GMC (4035 KAISER HILL RD, COLUMBIA, SC 29203) WHERE THE VEHICLE WAS INSPECTED AND THE CONTACT WAS PROVIDED AN ESTIMATE FOR THE COST OF THE REPAIR. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 124,000. *BF CONSUMER STATED THROTTLE- POSITION SENSOR FAILED AS WELL.*JB”