Lexus 2016 GS 200t, Owner'S Manual

Page: 315 / 624

GS350_200t_GS F_OM_OM30E86U_(U)
315
4-5. Using the driving support systems
4
Dr
iving
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.