29 problems have been reported for the 1999 Lexus GS400. The following chart shows the 11 most common problems for 1999 Lexus GS400. The number one most common problem is related to the vehicle's vehicle speed control with 6 problems. The second most common problem is related to the vehicle's service brakes, hydraulic (5 problems).
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control | |
| Service Brakes | |
| Suspension | |
| Electrical System | |
| Exterior Lighting | |
| Engine And Engine Cooling | |
| Equipment | |
| Other Fuel System | |
| Seat Belt | |
| Air Bag | |
| Power Train |
The following chart shows the number of problems reported during each of the service years since the debut of the 1999 Lexus GS400 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 Lexus GS400, the following table can be used to compare the 1999 Lexus GS400 with the Lexus GS400 from other model years. Note that the number of problems reported for the 1999 GS400 is 29 while the average number of problems reported for the 3 model years of the Lexus GS400 is 26.
| Model Year | Number of Problems |
|---|---|
| 2000 GS400 | |
| 1999 GS400 | |
| 1998 GS400 |