Chevrolet Express 3500 owners have reported a total of 151 problems for their cars built in the 20 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 Chevrolet Express 3500. The 2005 Chevrolet Express 3500 cars have the most problems reported (21 problems).
The following chart shows the 23 most common problems for Chevrolet Express 3500 cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (20 problems). The second most common problem is related to the vehicle's tires (15 problems).
It would not be fair to compare the Chevrolet Express 3500 of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Express 3500 model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.
PPMY = P / S / Y * 1000,
where P = total problems reported during the life of a Chevrolet Express 3500 model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).
The results are shown in Table 3.
| ☘ Express 3500 Service Bulletins |
| ⚑ Express 3500 Safety Recalls |
| ☤ Express 3500 Defect Investigations |
| Compare Reliability: |