2009 Chevrolet Silverado. Consumer writes in regards to throttle position sensor replacement. The consumer stated when the throttle position sensor failed, if caused a significant reduction in engine power and disabled the traction control and stabilitrak function. The consumer stated the throttle position sensor failed a year after he purchased the vehicle.

- Scandia, MN, USA

The contact owns a 2009 Chevrolet Silverado. While driving at 35 mph, the vehicle lost power. In addition, the contact stated that reduced engine power was displayed across the message board. The vehicle was taken to a dealer. The technician diagnosed that the throttle body needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 59,000. Updated 5/29/15 updated 9/29/2017

- Fort Wayne, IN, USA

Accelerator stuck driving on an interstate going 65M/H. slammed on my brakes took a good 30 seconds before I could get it to slow down and stop on the side of the road. Has not happened since.

- Portsmouth, VA, USA

Truck comes to scretching haltwith motor running but wont go, door locks and all gagues going up and down a 100 mile an hour. Sometimes everything dead and all of a sudden it comes back on. Air comes and goes. All lights flash. Those uprandom codes. No warning its going to happen. Radio will start playing very load cant shut off. When it does this it sometimes lunges forward aboit twenty feet and may run fine or do it again. Went to dealer truck stayed 2 months. Said they fixed. Few months later started again, next dealer said they couldnt find anything. Contacted GM on both incidents. Nothing happened.

- Woodward, OK, USA

Driving down highway, check engine light pops up, tractions control indicator light, along with digital display saying several things. Such as, engine reduced power, service traction control soon..........pulled over, had a very rough idle. Made it to parts store and have the truck scanned. Turns out it need the throttle positioning sensor needs replaced. Had them clear the code, drove few more miles and all happens again.

- Lebanon, MO, USA

The contact owns a 2009 Chevrolet Silverado. The contact stated that while driving 25 mph, the engine power reduced significantly. The vehicle was towed to the dealer for inspection, who stated that the throttle position sensor needed to be replaced. The vehicle was repaired. The manufacturer was notified. The failure mileage was 22,302....updated 07-10-13

- Utica, NY, USA

The contact owns a 2009 Chevrolet Silverado. The contact stated that while driving 75 mph, the engine stalled and the rear differential seized, causing the vehicle skid. The contact was able to restart the vehicle and called road side assistance. The representative that was sent by the roadside assistance service advised the contact that the throttle control system malfunctioned and advised that the vehicle was not safe to drive. The contact was able to drive the vehicle to his home without further incident. The contact took the vehicle to the dealer to replace the throttle control system. The failure mileage was 62,000.

- Wesley Chapel, FL, USA

The contact owns a 2009 Chevrolet Silverado. The contact stated while driving the cruise control would not disengage. The contact depressed the brake pedal but it failed to stop the vehicle. In order to stop the vehicle he had to shift into neutral gear and turn the vehicle off. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and current mileage was 32,500.

- Lino Lakes, MN, USA