International Prostar owners have reported a total of 40 problems for their cars built in the 6 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 International Prostar. The 2013 International Prostar cars have the most problems reported (13 problems).
The following chart shows the 14 most common problems for International Prostar cars. The number one most common problem is related to the vehicle's engine and engine cooling (13 problems). The second most common problem is related to the vehicle's vehicle speed control (4 problems).