GMC C7500 owners have reported a total of 5 problems for their cars built in the 3 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 C7500. The 2004 GMC C7500 cars have the most problems reported (3 problems).
The following chart shows the 5 most common problems for GMC C7500 cars. The number one most common problem is related to the vehicle's engine and engine cooling (1 problem). The second most common problem is related to the vehicle's electrical system (1 problem).