226 problems have been reported for the 2009 Nissan 370Z. The following chart shows the 15 most common problems for 2009 Nissan 370Z. The number one most common problem is related to the vehicle's steering with 86 problems. The second most common problem is related to the vehicle's electrical system (67 problems).
| Problem Category | Number of Problems |
|---|---|
| Steering | |
| Electrical System | |
| Power Train | |
| Engine And Engine Cooling | |
| Equipment | |
| Other Fuel System | |
| Air Bag | |
| Service Brakes | |
| Gasoline Fuel System | |
| Vehicle Speed Control | |
| Structure | |
| Seat Belt | |
| Wheel | |
| Visibility | |
| Seats |
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2009 Nissan 370Z in the United States are 11,130 units [1]. If the total number of problems reported by Nissan 370Z owners in the last 16 years is 226, and the age of the vehicle is 16, the PPMY index can then be calculated as
PPMY Index = 226 / 11,130 / 16 * 1000 = 1.27.
For more information, refer to this page: A study of reliability comparison across Nissan 370Z model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 Nissan 370Z in 2009.
| Service Year | Number of Problems |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 |
When making the decision between buying a new or used Nissan 370Z, the following table can be used to compare the 2009 Nissan 370Z with the Nissan 370Z from other model years. Note that the number of problems reported for the 2009 370Z is 226 while the average number of problems reported for the 11 model years of the Nissan 370Z is 45.