Car Accelerates On Its Own Problems of Buick Lacrosse

This is to amend complaint number 11051891. Cause of unintended acceleration was aftermarket floor mat installed by the Buick dealer! floor mat has diagonal grooves molded into the rubber in exactly the worst spot such that the corner of accelerator pedal catches in the groove and holds the throttle wide open. I guess they didn't learn from the Toyota / Lexus disasters and darn near killed me in the process!.

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While entering a parking lot at approximately 20 mph vehicle suddenly accelerated at very high rpms and jumped the curb hitting a tree, extreme pressure on brake pedal would not stop vehicle. . This was the second time in 2 days this problem occurred. .

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The contact owns a 2008 Buick Lacrosse. The contact stated that while driving approximately 50 mph, the vehicle suddenly became unresponsive and failed to accelerate when pressing on the accelerator pedal. The contact indicated that after releasing the accelerator pedal the vehicle suddenly accelerated at a very high rate of speed. The contact indicated that the defect had occurred multiple times. The vehicle was taken to the dealer who diagnosed that the throttle body was defective. The vehicle was repaired but the defect had reoccurred. The manufacturer was not notified. The failure mileage was 130,000.

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The contact owns a 2011 Buick Lacrosse. The contact stated that while decelerating, the vehicle suddenly accelerated without warning. The vehicle was taken to the dealer. The manufacturer was made aware of the failure and agreed to send a engineer to inspect the vehicle. The vehicle was not repaired. The failure and current mileage was 24,000.

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This is a 4cyl car with eassist. Unintended acceleration - the car while going downhill or sometimes uphill, accelerates on its own after releasing the gas pedal. I almost hit another car once because of this. Jerking - the car while decelerating from 50-40 mph to 30-20 mph jerks after releasing the gas pedal (with an intention of decelerating) or while applying brakes. This has been happening regularly since I bought the car in oct 2012.

See all problems of the 2012 Buick Lacrosse 🔎.