143 problems have been reported for the 2001 Nissan Frontier. The following chart shows the 21 most common problems for 2001 Nissan Frontier. The number one most common problem is related to the vehicle's fuel system, gasoline with 25 problems. The second most common problem is related to the vehicle's engine and engine cooling (24 problems).
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 2001 Nissan Frontier in the United States are 101,283 units [1]. If the total number of problems reported by Nissan Frontier owners in the last 23 years is 143, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 143 / 101,283 / 23 * 1000 = 0.06.
For more information, refer to this page: A study of reliability comparison across Nissan Frontier model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2001 Nissan Frontier in 2001.
| Service Year | Number of Problems |
|---|---|
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 | |
| 2002 | |
| 2001 |
When making the decision between buying a new or used Nissan Frontier, the following table can be used to compare the 2001 Nissan Frontier with the Nissan Frontier from other model years. Note that the number of problems reported for the 2001 Frontier is 143 while the average number of problems reported for the 27 model years of the Nissan Frontier is 148.