GMC Sierra 3500 owners have reported 80 power train related problems since 1996. Table 1 shows the 11 most common power train problems. The number one most common problem is related to the vehicle's power train (61 problems). The second most common problem is related to the vehicle's automatic transmission control module (5 problems). For details of each of the problem category, use the links in the table.
During takeoff the transmission acted as if it was in neutral while I was crossing traffic luckily, the semi truck that was coming towards me was able to stop. I had the vehicle towed to a shop. After the vehicle was towed to the shop the transmission acted normal when the mechanic searched the VIN Read details...
My 2011 fmc Sierra 3500 drw denali suffered a failure of the transmission control module (tcm). I could barely move the vehicle and almost got into an accident merging into traffic. Forward and reverse was affected. Read details...
Transmission cooling lines leaking. Read details...
The front end of the vehicle vibrated. The transmission, brakes, bucket seats, and differential unit malfunctioned. Read details...
The contact owns a 2008 GMC Sierra 3500. The contact stated that while getting a service inspection at the dealer, they found that there was a transmission line leak. The dealer advised him that the line needed to be replaced and that it was not covered under warranty. The vehicle was repaired. Read details...