*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Vehicle speed control
My 2017 Buick LaCrosse Premium AWD experienced a sudden, dangerous mechanical failure of the Accelerator Pedal Position Sensor system while operating the vehicle under normal road conditions. The vehicle suffered an immediate loss of engine continuity and engine power, forcing the car into a hazardous low-speed limp mode while in active traffic. A certified repair facility inspected the vehicle, confirmed a complete failure of the internal pedal sensor circuit, and replaced the unit to restore safe operating throttle control. This specific electronic and mechanical defect represents a widespread manufacturing vulnerability that General Motors has officially acknowledged under Special…
Nov 15, 2025Power train
My 2017 Buick LaCrosse Premium AWD (116,220 miles) experienced a severe all-wheel-drive failure causing significant binding and a loud rumbling/clunking noise during sharp, low-speed cornering and acceleration. The vehicle has been officially inspected by two separate authorized manufacturer service centers. On September 25, 2026, a certified GM technician at Advantage Buick GMC formally documented that the vehicle has a prominent rear drivetrain failure, identifying it as a "rear diff or driveshaft issue" that requires full component replacement. Prior to the complete mechanical failure, no warning lights or dashboard indicators illuminated. The binding symptoms appeared suddenly during…
Sep 2, 2026Suspension
This vehicle has major suspension issues containing the complete strut assembly, lower control arms, and strut yokes/forks, which can not be replaced due to the discontinuance of the vehicle and parts itself. Because of this the car cannot receive an alignment which cause the tires to be eaten up at a rapid rate. When going over a bump in the highway the steering column goes one way while the car goes another. The car slides all over the road. Extreme safety concerns for my family and I.
Apr 28, 2024Suspension
The contact owns a 2017 Buick Lacrosse. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the front driver's side wheel well. The contact stated that increased effort was needed to maneuver the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the front driver's side strut. The vehicle was not repaired because parts were not available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was unknown. The VIN was not available.
Aug 23, 2024Air bags
The air bag warning light in the dash came on intermittently during driving. I took the vehicle to the dealer for service December 27, 2023, since it was a safety issue that the authorized dealer needs to take care of. At first, they said it was a bad battery and the safety system needed reprogramming. Which they did for about $800. When driving home from the dealer the air bag light came back on so a few days later I returned the car to the dealer. Then they said it was the passenger seat safety module that needed to be replaced. That was back in January of 2024, over 6 months ago. At that point I learned that the car is not drivable since the air bag could deploy at any time or would not…
Dec 13, 2023Electrical system
The amplifier stopped working and all the sound comes through the amp including but not limited to seatbelt, door ajar, rear seat reminder, blinkers, back up sounds, and any and all sounds that the car my make for any safety features, onstar features, radio, Bluetooth, the list goes on.
Jun 16, 2024Suspension
The contact owns a 2017 Buick Lacrosse. The contact stated while driving at various speeds, the vehicle was making an abnormally loud stomping sound and the wheels were shuddering significantly. The contact stated that the failure had been recurring while driving. The vehicle was taken to the dealer, where it was diagnosed that the suspension yoke had failed and needed to be replaced; however, the part had been discontinued. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the part had been discontinued. The failure mileage was approximately 65,000. The VIN was not available.
Jun 24, 2023 · 65,000 milesService brakes
The contact owns a 2017 Buick Lacrosse. The contact stated that the rear brakes were worn three times faster than the front brakes. The check engine warning light was illuminated. The contact was concerned about the safety of the vehicle. The vehicle was taken to the dealer, where it was diagnosed; however, the cause of the failure was not yet determined. The vehicle was taken to another dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to trade the vehicle. The failure mileage was approximately 33,000.
Aug 17, 2020 · 33,000 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
