2010 Lexus RX 450h User Guide - Page 504

507

4-3. Do-it-yourself maintenance

4

Installing tire pressure warning valves and transmitters

When replacing tires or wheels, tire pressure warning valves and trans-

mitters must also be installed.

When new tire pressure warning valves and transmitters are installed,

new tire pressure warning valve and transmitter ID codes must be regis-

tered in the tire pressure warning computer and the tire pressure warning

system must be initialized. Have tire pressure warning valve and transmit-

ter ID codes registered by your Lexus dealer. (

→

P. 509)

Initializing the tire pressure warning system

■

The tire pressure warning system must be initialized in the following

circumstances:

●

When tire inflation pressure is changed such as when changing trav-

elling speed or load weight

●

When changing the tire size

When the tire pressure warning system is initialized, the current tire

inflation pressure is set as the benchmark pressure.

■

The tire pressure warning system

Your Lexus is equipped with a tire pressure warning system that uses

tire pressure warning valves and transmitters to detect low tire infla-

tion pressure before serious problems arise. (

→

P. 578)