Cruise Control problems of the 2008 Saturn VUE

The contact owns a 2008 Saturn Vue. While driving approximately 70 mph with the cruise control activated, the vehicle accelerated without warning. The cruise control warning light illuminated. The failure recurred twice. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 100,000.

While entering I-880 @ 45 mph increased speed to 60 mph to get into the flow of traffic. Car accelerated to 70-80 mph. Attempts to slow the car down by stepping on brake did not work but the car continued to accelerate to 80-85 mph. I had to switch lanes to not hit car in front. All attempts to brake did not slow the car down. Stepping on the gas peddle numerous times finally allowed the car to slow down. Initially believing car was in cruise control I did nothing. This happen 3 more times when I would accelerate to pass a car on the freeway and once on a private road. The latter was done intentionally, late at night, to assure my mind it was really happening. Car is in the dealer now and they are telling me nothing is wrong with it. This needs to be documented since this appears to be a very serious safety concern when a driver has no control of the vehicle and given the circumstances a lot of lives seem to be at risk including my own. This seems to be the only place to file this information since dealer stated that consumer complaint cannot be filed since Saturn no longer makes vehicles. As I stated to dealer Saturn is covered under GMC.

When car is in cruise control it is constantly downshifting to maintain speed even on flat surface. Apparently the gearing on the transmission does not support to weight of the vehicle and it cannot maintain the cruise control speed. The service department said there is nothing they can do.