Suspension Related Problems of the 1999 Lexus GS400

Table 1 shows four common suspension related problems of the 1999 Lexus GS400. The number one most common problem is related to the rear suspension (two problems). The second most common problem is related to the front suspension lower ball joint (one problem).

Table 1. Suspension related problems of Lexus GS400


Recently reported Suspension problems of the 1999 Lexus GS400

The Rear Suspension problem

Vehicle has a fast shudder of the steering wheel at highway speeds. It also has a vibration in the seats at 45 mph. We replaced the tires three times with different types and cannot eliminate the vibration. It must be a suspension part.   Read details...

The Front Suspension Lower Ball Joint problem

The contact owns a 1999 Lexus Gs400. While driving at an unknown speed, the lower ball joint made a loud squeaking noise and then failed. The vehicle was towed to an auto body shop and the diagnostic indicated that the sensor wire had to be rewired and the front lower ball joint needed to be   Read details...

The Front Suspension Coil Spring problem

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.   Read details...


Suspension related problems in other Lexus GS400 model year vehicles:



GS400 Service Bulletins
GS400 Safety Recalls
GS400 Defect Investigations