Two problems related to suspension have been reported for the 2002 Lexus SC430. The most recently reported issues are listed below.
I just can confirm all the other complaints about the Sc430s handling. Dangerous - especially on rough roads. Car tends to follow any kind of road abnormally. I complained at Lexus from the first day (over two years now). Replaced run flats, still not able to handle the car. Seems to be a suspension related problem. Lexus thinks this is normal- ha ha - $70000 piece of shi. . I'm totally upset about reaction from Lexus dealer and customer support.
When the vehicle hit any kind of variance in the road the steering wheel would pull either right or left. Nlm.