Lexus GS 350 Owner's Manual page 480

The initialization operation (vehicles with the tire pressure warning system)
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Make sure to carry out initialization after adjusting the tire inflation pressure.
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Also, make sure the tires are cold before carrying out initialization or tire inflation pres-
sure adjustment.
If you have accidentally turned the engine switch off during initialization, it is not neces-
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sary to manually restart the initialization again, as initialization will restart automatically
the next time the engine switch is turned to IGNITION ON mode.
If you accidentally perform initialization when initialization is not necessary, adjust the
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tire inflation pressure to the specified level when the tires are cold, and conduct initial-
ization again.
Warning performance of the tire pressure warning system (if equipped
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The warning of the tire pressure warning system will change in accordance with the con-
ditions under which it was initialized. For this reason, the system may give a warning even
if the tire pressure does not reach a low enough level, or if the pressure is higher than the
pressure that was adjusted to when the system was initialized.
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: Except for Hong Kong, Thailand, Chile
When initialization of the tire pressure warning system has failed (vehicles with the tire
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pressure warning system)
Initialization can be completed in a few minutes. However, in the following cases, the set-
tings have not been recorded and the system will not operate properly. If repeated
attempts to record tire inflation pressure settings are unsuccessful, have the vehicle
inspected by your Lexus dealer.
The initialization message is not displayed on the multi-information display when per-
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forming initialization.
After carrying out the initialization procedure, the tire pressure warning light blinks for 1
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minute then stays on after driving for 20 minutes.
Certification for tire pressure warning system
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For vehicles sold in the United Arab Emirates

GS350_300_GS F_OM_OM30J17E_(GE)
6-3. Do-it-yourself maintenance
479
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