I own a 2006 Buick Rendezvous SUV. This SUV has 59,000 miles. In November a sensor light came on that states "reduce engine speed" while driving and you lose all power. This includes steering, brakes, speed and the engine stalls. However the radio stays on. I was traveling on a hwy with a speed limit of 45 mph.I lose control of steering, brakes and speed control. The SUV stalled and I had to change three lanes to get out of traffic. I was concerned about getting hit or hitting another car. This has happened frequently. Two separate mechanics had recommend replacing the throttle body but one said there was no guarantee this would solve my problem. We replaced this part in December at a cost of $400 and now I still lose power and am afraid of being hit or causing an accident. As this week this problem has occurred every day I drove it. Buick insists there are no recalls regarding this issue for my 2006 however there is a bulletin for GMC but different models/years. This is dangerous and I am afraid to drive this vehicle. I cannot sell or trade this in with this type of defect. I feel GM should fix this dangerous defect. Please investigate.

- Oak Creek , WI, USA

The contact owns a 2006 Buick Rendezvous. The contact was entering a parking space with the brakes depressed when the vehicle abnormally accelerated. The contact crashed into another vehicle. He then discoed that the floor mat was positioned under the brake pedal and on top of the accelerator pedal. The manufacturer would not provide any assistance. The contact removed the floor mat. The VIN was not available. The failure mileage was approximately 70,000 and the current mileage was approximately 80,000.

- Livonia, MI, USA

The contact owns a 2006 Buick Rendezvous. The contact heard a grinding sound and the brakes became hard when the brake pedal was depressed. The vehicle was taken to the dealer and they replaced the front and rear brakes. Shortly afterward, the automatic transmission, wiring for the all-wheel drive, wiring for the speed sensors, and the rear tie rods were all replaced between 17,500 and 22,000 miles. The rear driver's side door also fell off the vehicle and was re-adjusted. The vehicle was taken to the dealer at least once a month for failed components. The failure mileage was 17,542 and current mileage was 23,126.

- Terre Haute, IN, USA