One problem related to front suspension coil spring has been reported for the 1999 Lexus GS400. The most recently reported issues are listed below.
Front suspension has clunk noise when going over speed bump in slow speed. Dealer never able to resolve the problem and same sympton recur every 6k miles after dealer repair the suspension.
| Rear Suspension problems | |
| Front Suspension Lower Ball Joint problems | |
| Front Suspension Coil Spring problems | |
| Suspension problems |