TOYOTA 2010 Sienna - Manual (Page 482)

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4-3. Do-it-yourself maintenance
4
Mainten
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When the initialization of the tire pressure warning system has
failed
Initialization can be completed in several minutes. However, in the fol-
lowing cases, the settings 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 Toyota
dealer.
●
When operating the tire pressure warning reset switch, the tire pres-
sure warning light does not flash 3 times.
●
After carrying out the initialization procedure, the tire pressure warn-
ing light blinks for 1 minute then stays on after driving for about 20
minutes.
■
Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.