Lexus SC 430 2006 Owner's Manual page 124

2-4. Using other driving systems
CAUTION
Replacing tires
■
Ensure that all tires are the same size and brand, have the same tread pattern, and
that the level of tire pressure is at the recommended level.
The ABS, TRAC and VSC systems may not operate normally, if different tires are
installed to the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
110