Lexus GS430 User Manual page 467

Please note that the TPMS (tire pressure warning
system) is not a substitute for proper tire maintenance,
and it is the driver's responsibility to maintain correct
tire pressure, even if under−inflation has not reached
the level to trigger illumination of the TPMS low tire
pressure telltale (tire pressure warning light).
STARTING AND DRIVING
NOTICE
D Do not use liquid sealants for a flat tire as tire
pressure warning valve and transmitter will be
damaged.
D When the tires must be repaired or replaced, have
them repaired or replaced by your Lexus dealer or an
authorized tire dealer. The tire pressure warning
valves and transmitters will be affected by the
installation or removal of tires.
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