10 problems have been reported for the 1999 Infiniti Q45. The following chart shows the 6 most common problems for 1999 Infiniti Q45. The number one most common problem is related to the vehicle's tires with 3 problems. The second most common problem is related to the vehicle's wheels (2 problems).
| Problem Category | Number of Problems |
|---|---|
| Tire | |
| Wheel | |
| Structure | |
| Suspension | |
| Vehicle Speed Control | |
| Steering |
The following chart shows the number of problems reported during each of the service years since the debut of the 1999 Infiniti Q45 in 1999.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 | |
| 2002 | |
| 2001 | |
| 2000 | |
| 1999 |
When making the decision between buying a new or used Infiniti Q45, the following table can be used to compare the 1999 Infiniti Q45 with the Infiniti Q45 from other model years. Note that the number of problems reported for the 1999 Q45 is 10 while the average number of problems reported for the 10 model years of the Infiniti Q45 is 13.