Vehicle Speed Control Related Problems of the 2008 GMC Sierra 1500

Table 1 shows three common vehicle speed control related problems of the 2008 GMC Sierra 1500.

Table 1. Vehicle Speed Control related problems of GMC Sierra 1500

Problem Category Number of Problems
Accelerator Pedal problems
1
Car Accelerates On Its Own problems
1
Vehicle Speed Control problems
1

Accelerator Pedal problem #1

Driving on a rural road in extreme cold. Approx 20 mi / hr. Gas pedal stuck to floor. Threw truck in neutral to slow down & by hand reached down to lift the accelerator from the floor. Incident did not happen again that day. Took to dealership & was told that a new accelerator would be installed.

Car Accelerates On Its Own problem #2

The contact owns 2008 GMC Sierra 1500. The contact stated that while driving up an incline at 45 mph, the vehicle suddenly accelerated to speeds exceeding 45mph. Excessive pressure was applied to the brake pedal to stop the vehicle. The vehicle was not taken to have the failure diagnosed or repaired. The failure and the current mileages were 8,600.

Vehicle Speed Control problem #3

The contact owns a 2008 GMC Sierra 1500. While driving approximately 40 mph, the vehicle lost power. Also, the traction control, service engine, and reduced engine power indicators illuminated. The vehicle was taken to the dealer (betten baker Buick, 2901 28th st, grandville, mi, 49418, phone number: 616-530-9191) where it was diagnosed that the throttle body needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and stated that there was no recall. The contact was referred to NHTSA. The failure mileage was approximately 96,000.


Vehicle Speed Control related problems in other GMC Sierra 1500 model year vehicles:



Safety Ratings of Sierra 1500 Cars
Sierra 1500 Service Bulletins
Sierra 1500 Safety Recalls
Sierra 1500 Defect Investigations