GMC T-series owners have reported a total of 19 problems for their cars built in the 8 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the GMC T-series. The 2002 GMC T-series cars have the most problems reported (8 problems).
The following chart shows the 9 most common problems for GMC T-series cars. The number one most common problem is related to the vehicle's equipment (9 problems). The second most common problem is related to the vehicle's parking brake (2 problems).