Lexus LFA Owner's Manual page 273

Initializing the tire pressure warning system
The tire pressure warning system must be initialized when the tire infla-
tion pressure is changed (such as when changing traveling speed).
When the tire pressure warning system is initialized, the current tire infla-
tion pressure is set as the benchmark pressure.
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How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the ignition switch off.
STEP 1
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire inflation
STEP 2
pressure level. (P. 366)
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 ignition switch to the "ON" position.
STEP 3
STEP 4
Wait for a few minutes with the ignition switch in the "ON" posi-
STEP 5
tion and then turn the ignition switch off.
4-3. Do-it-yourself maintenance
Press and hold the tire pressure
warning reset switch until the tire
pressure warning light flashes
slowly 3 times.
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