Chevrolet Trax owners have reported a total of 84 problems for their cars built in the 5 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 Trax. The 2017 Chevrolet Trax cars have the most problems reported (34 problems).
The following chart shows the 17 most common problems for Chevrolet Trax cars. The number one most common problem is related to the vehicle's steering (13 problems). The second most common problem is related to the vehicle's engine and engine cooling (13 problems).
|Problem Category||Number of Problems|
|Engine And Engine Cooling|
|Electronic Stability Control|
|Vehicle Speed Control|
|Other Fuel System|
It would not be fair to compare the Chevrolet Trax 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 Trax 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 Trax 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.