Lexus GS350 Owner's Manual page 297

WARNING
When the TRAC/VSC systems are turned off
■
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stability and driving force, do not turn the
TRAC/VSC systems off unless necessary.
Expert mode precautions (GS F)
■
Do not use on public roads.
●
Use only when the road conditions and safety of the surrounding area can be
●
ensured.
Proper use of expert mode requires a professional level of driving skill. When using
●
expert mode, always check the road conditions and surrounding area and drive more
carefully than usual.
Replacing tires
■
Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire infla-
tion pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
Handling of tires and the suspension
■
Using tires with any kind of problem or modifying the suspension will affect the driving
assist systems, and may cause a system to malfunction.
GS350_300_GS F_OM_OM30G34U_(U)
4-5. Using the driving support systems
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