Automatic Transmission Problems of Buick Lacrosse

2006 Buick Lacrosse. Consumer states injury and accident due to a mechanical anomaly stating vehicle reversed on its own. The consumer stated she put the gear in park, opened the door and left it open while she walked approximately eight steps. As the consumer turned around, she saw the vehicle traveling backwards and ran to stop it. Soon, the vehicle was in the middle of the street and she realized she couldn't get in the vehicle, but at that point the door apparently hit the consumer and knocked her to the pavement. The injury resulted in a concussion which eventually required brain surgery to remove a hematoma.

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Upon leaving dealership after purchase of new car, turned right to exit and transmission jumped into neutral, almost rear-ended. Thought I may have hit shifter. Another turn from stop and trans jumped into neutral during turn while entering traffic. Just missed being hit and perhaps killed. Manually returned to "d". Life threatening defect. Ret to dealer and demonstrated. Next day dealer advised that a "module" on the transmission was installed backwards by gm mfg. Advised gm day after occurrence. Later gm called and told me car had been repaired and get it or "they" would charge me storage. Obviously, after exposing wife and myself to great risk, we did not want that vehicle. Now gm will not speak to me as I try to ensure that the autos produced prior and post to mine were verified to ensure they did not have the same life threatening defect and react accordingly. Gm seems not to care. Pls note: the car "dropped" from drive in neutral everytime I accelerated from a turn into traffic. This problem was demonstrated to the dealer; dealer said park it now. Question is how many Buicks were manufactured with this very dangerous defect. The 2 times this happened, prior to knowledge of the/a problem, if I had not been able to return to "drive" and proceed with maximum acceleration, we would have been unquestionably hit by approaching cars. Had my wife been driving, her reaction would have been slower and she could have easily been killed. This is life threatening. I delayed contacting the ntsb in that I believed gm would take action. I do not believe that to be the situation. Help - lives are definitely at risk if any cars prior to or after mine have this defect. Suspect poorly trained individual on the line that day "filling" in. Poor engineering as dealer stated the part was so designed as it could be installed backwards. Please confirm you are taking action as this is a critical defect that could very easily result in death or serious injury as I cannot confirm gm action.

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The contact owns a 2010 Buick Lacrosse. The contact stated while driving 35 mph the steering became progressively loose and loud whenever the vehicle made a left turn. The contact took the vehicle to the dealer. The dealer checked the power steering pump and noticed that it was damaged and that it also had loose wiring from the chassis. The dealer replaced the power steering pump and repaired the loose wiring. The contact has not had a problem with the steering since the repair. The contact also stated that while driving 55 mph he heard a loud bang underneath the vehicle. As a result of the loud bang the vehicle lost all power and the contact coasted to the side of the road. The vehicle was towed to a dealer who stated that the reversal belt on the transmission feel off. The vehicle was being dealer being repaired by the dealer. The contact stated this vehicle is very unsafe to drive. The failure mileage was 18,199.

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I filed a complaint on 13 September 2010 under odi id number : 10355399. I have recently learned, from the Buick service representative at hennessey Buick, that the mechanic took the transmission apart and what he found was that the 'reverse belt' fell off, disabling the vehicle. The service rep indicated that he had not heard of this happening before.

2007 Buick Lacrosse totaledin transit.

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At times, car will not accelerate. When attempting to increase speed, usually when accelerating into high speed, the car does nothing for a few seconds, then it begins to buck, still with no speed acceleration. It has lasted from a few seconds to 10 minutes. It only happens periodically, and no trouble lights appear on the dashboard.

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The vehicle had a hesitation upon acceleration between 40 and 60 mph. Also noise was coming from the engine. Especially on a cold start. Brakes were pulsating.

Car looses power while trying to accelerate. Have almost been rear ended on a couple of occasions. Once while on I-95 in georgia, a semi-truck almost rear ended the vehicle. The dealership says it cannot duplicate the problem even though they say it could be the wireless accelerator they will not replace it unless they can personally duplicate the problem.