Toyota Matrix 2009 Owner's Manual page 240

When the initialization of the tire pressure warning system has
n
failed
Initialization can be completed in a few minutes. However, in the follow-
ing 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-
l
sure warning light does not flash 3 times.
After carrying out the initialization procedure, the tire pressure warn-
l
ing light blinks for 1 minute then stays on after driving for about 20
minutes.
Routine tire inflation pressure checks
n
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.
Maximum load of tire
n
Check that the maximum load of the replaced tire is greater than 1/2 of
the Gross Axle Weight Ratings (GAWR) of either the front axle or the
rear axle, whichever is greater.
For the maximum load of the tire, see the load limit at maximum cold tire
inflation pressure mentioned on the sidewall of the tire, and for the Gross
Axle Weight Ratings (GAWR), see the Certification Label. (→P. 312,
408).
4-3. Do-it-yourself maintenance
4
307