Rear wheels lock up when down shifting when driving speeds of 40 mph or more

- Florissant, MO, USA

The contact owns a 2012 Chevrolet Silverado 1500. The contact stated that the vehicle experienced a loss of engine power and the service traction control, stabilitrak, and engine power reduced warning indicators illuminated. The vehicle was taken to freeland Chevrolet (located at 5333 hickory hollow pkwy, antioch, tn) where it was diagnosed that the vehicle needed a new battery. The vehicle was repaired, but the failure recurred. The vehicle was returned to the dealer where it was diagnosed that the accelerator pedal position sensor was defective and needed to be replaced; however, the failure recurred. The vehicle was taken to an independent mechanic where it was diagnosed that the power train control module was defective and needed to be replaced. The manufacturer was notified of the failures. The failure mileage was 35,056. Consumer stated power train control module was defective.

- Smyrna, TN, USA

The contact owns a 2012 Chevrolet Silverado. The contact stated that the accelerator pedal was depressed, the vehicle failed to move. The vehicle was taken to the dealer who was unable to duplicate the failure. The vehicle had not been repaired. The manufacturer was not notified. The approximate failure mileage was 1,000.

- Edelstein , IL, USA

When you try to accelerate, the truck does not respond. The truck acceleration feels like their is a flat spot in the acceleration. This is very dangerous. Several of my family members have almost gotten in terrible T-bone accidents due to this malfunction. Brought the truck to the local dealership & the said they replaced the throttle position sensor & it is worse now.

- Munising, MI, USA

The contact owns a 2012 Chevrolet Silverado 1500. The contact stated that while driving approximately 45 mph, the vehicle suddenly accelerated independently. The contact depressed the brake pedal but the vehicle would not respond. The vehicle was taken to the dealer for diagnostic testing three different times. The technicians were unable to diagnose the failure. The manufacturer was made aware of the failure and had an engineer further inspect the vehicle. The vehicle was not repaired. The VIN was not available. The approximate failure mileage was 6,900. Kmj

- Whitesville, NY, USA

The contact owns a 2012 Chevrolet Silverado. While driving approximately 10 mph, the vehicle suddenly accelerated independently. The contact depressed the brake pedal and was able to stop the vehicle. The failure recurred twice. The vehicle was taken to the dealer for diagnostic testing. The technician was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 2,500.

- Fremont, IN, USA