Toyota 2009 Camry Quick Reference Manual page 327

Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and
transmitters 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 registered in the tire pressure warning computer and tire
pressure warning system must be initialized. Have tire pressure
warning valve and transmitter ID codes registered by your Toyota
dealer. (→P. 306)
Initializing the tire pressure warning system
The tire pressure warning system must be initialized when the
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tire inflation pressure is changed (such as when changing
traveling speed).
When the tire pressure warning system is initialized, the current tire
pressure is set as the pressure benchmark.
How to initialize the tire pressure warning system
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STEP 1
Park the vehicle in a safe place and turn off the hybrid system.
Initialization is not performed while the vehicle is moving.
STEP 2
Adjust the tire pressure to the specified pressure. (→P. 404)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The tire pressure warning system will
operate based on this pressure level.
STEP 3
Turn the "POWER" switch to ON mode.
4-3. Do-it-yourself maintenance
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305