Automatic Transmission problems of the 2005 GMC Envoy

The contact owns a 2005 GMC Envoy. The contact was driving 30 mph when the vehicle stalled without warning and would not restart. The vehicle was then towed to a local mechanic who inspected the vehicle and informed the contact that the transmission needed to be replaced. The transmission was replaced at the contact's expense. A letter was sent to the manufacturer who in return, called the contact and offered no assistance. The failure mileage was 34,000. Updated 07/08/11 updated 07/18/11.

I was driving my car and lost the drive gear and had to down shift to 2nd gear although I owned an automatic car. I only had a car with 50,000 miles on it. I couldn't believe it could be my transmission already. I was able to up shift to drive but only after going into 2. When I arrived at my uncles house, he said the transmission was likely gone.

The contact owns a 2005 GMC Envoy. While driving 75 mph in the rain with the cruise control activated, the vehicle began to decelerate on its own. In addition, the engine began to rev. The vehicle was pulled over to the side of the road and turned off. When the contact restarted the vehicle and shifted into drive, it would not shift into third or fourth gear. The vehicle was towed to the dealer and they stated that the transmission was defective and needed to be replaced. The vehicle has not been repaired. The manufacturer stated that they would call the dealer to find out the diagnosis of the failure and then call the contact. The current and failure mileages were 49,000. Updated 01/08/09 updated 01/09/09.

We purchased our 2005 GMC Envoy slt in Dec. 2004, which came right off the showroom floor. We had low fuel economy but thought this would get better with more miles. After 30,000 miles our transmission went out without warning. At no time did any internal sensor system detect a problem and we did not notice anything until it was to late. We took it back to dealer and luckily it was covered under warranty for repair. According to mechanic the problem was a small o-ring which was damaged at the factory and that the transmission came from the factory this way. They did rebuild the transmission but now I only have a 12,000 mile warranty on a rebuilt transmission. We feel this is unfair as the transmission was damaged at the factory and was not caused by anything we did. We paid a hefty sum for this SUV and now the value has depreciated even more because of this problem. Now we feel we have a lemon on our hands and no way to remedy the situation, not to mention the gas we wasted and the time it was in the shop for approx. 2 weeks. We thought we were getting a reliable vehicle!!!.