Lexus SC 430 2004 Manual page 351

CHASSIS
If the gauge and the air pump are not available, have
your vehicle checked by your Lexus dealer.
CAUTION
Be sure to reinstall the tire valve caps. Without the
valve caps, dirt or moisture could get into the
valve core and cause air leakage. If the caps have
been lost, have new ones put on as soon as
possible.
Incorrect tire inflation pressure may waste fuel, reduce
the comfort of driving, reduce tire life and make your
vehicle less safe to drive.
If a tire needs frequent refilling, have it checked by your
Lexus dealer.
332
CAUTION
Keep your tires properly inflated. Otherwise, the
following conditions may occur and cause an
accident resulting in death or serious injuries.
Low tire pressure (underinflation):
D Excessive wear
D Uneven wear
D Poor handling
D Possibility of blowouts from overheated tire.
D Poor sealing of the tire bead
D Wheel deformation and/or tire separation
D A greater possibility of tire damage from road
hazards
High tire pressure (overinflation):
D Poor handling
D Excessive wear
D Uneven wear
D A greater possibility of tire damage from road
hazards