Lexus LS460 2008 Owner's Manual page 572

4-3. Do-it-yourself maintenance
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How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the "ENGINE START
STEP 1
STOP" switch OFF.
While the vehicle is moving, initialization is not performed.
Adjust the tire pressure to the specified cold tire inflation pressure
STEP 2
level. (P. 675)
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.
Turn the "ENGINE START STOP" switch to IGNITION ON
STEP 3
mode.
STEP 4
Wait for a few minutes for the multi-information display to show
STEP 5
the tire inflation pressures (5 tires), and then turn the "ENGINE
START STOP" switch to OFF.
572
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times and a message
appears on the multi-information
display.