Infiniti FX owners have reported a total of 13 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 Infiniti FX. The 2010 Infiniti FX cars have the most problems reported (5 problems).
The following chart shows the 8 most common problems for Infiniti FX cars. The number one most common problem is related to the vehicle's power train (3 problems). The second most common problem is related to the vehicle's fuel system, gasoline (3 problems).
| Problem Category | Number of Problems |
|---|---|
| Power Train | |
| Gasoline Fuel System | |
| Service Brakes | |
| Electrical System | |
| Equipment | |
| Tire | |
| Latches/locks/linkage | |
| Exterior Lighting |
It would not be fair to compare the Infiniti FX 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 FX 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 Infiniti FX 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.