Thump after coming to a stop. After about 24,000 miles. I started feeling a light thump from the rear, as if someone bumped me from behind. Over the next few weeks it became very noticeable, so I took it to the dealer for investigation. The 1st time, they said the rear-end had the wrong lube in it & they replaced it. This seem to work for the next several weeks. Then the thump returned lightly at 1st & gradually worsened to a major thump. I returned it to the dealer & this second repair was that the lubed the rear-end & replaced the yoke on the driveshaft. This repair worked for about a week & I started feeling the light thump again. I took it back in again, left it all day & they apparently drove it around the parking lot & couldn't duplicate the problem. One of the service managers rode with me, around the parking lot & the problem wouldn't show up. It has since worsened again & I will take it back in once the problem gets a little worse.

- Memphis, TN, USA

The contact owns a 2007 Chevrolet Silverado. While driving 30-35 mph, the speed does not increase on the vehicle, even when the accelerator pedal is depressed to the floor. This is a safety hazard when driving on the freeway. The vehicle was taken to the dealer, but nothing was repaired. The manufacturer acknowledged the failure, but stated that the vehicle was supposed to perform in that manner. The current mileage was 2,800 and failure mileage was 73.

- Ellyville, OK, USA