Operation of the tire pressure warning system
Your vehicle is equipped with a tire pressure warning system that uses tire pressure
warning valves and transmitters to detect low tire inflation pressure before serious
problems arise.
The tire pressure warning system of this vehicle adopts a 2-type warning system.
●
When "Adjust Pressure" is displayed (Normal Warning)
A warning with the tire pressure warning light and warning buzzer when there
is an unknown level of low tire pressure with the appearance of the tire due
to natural air leakage as well as the pressure lowering due to changes in the
pressure according to the outside temperature.
●
When "Immediately Check tire when Safe" is displayed (Emergency Warning)
A warning with the tire pressure warning light and warning buzzer when there is
a known level of low tire pressure with the appearance of the tire due to pressure
suddenly lowering.
However, the system may not be able to detect sudden tire ruptures (bursting,
etc.).
●
The tire pressure detected by the tire pressure warning system can be displayed
on the center display.
INFORMATION
■
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.
■
Tire inflation pressure
●
It may take a few minutes to display the tire inflation pressure after the power switch is
turned to ON.
It may also take a few minutes to display the tire inflation pressure after inflation
pressure has been adjusted.
●
Tire inflation pressure changes with temperature. The displayed values may also be
different from the values measured using a tire pressure gauge.
■
Situations in which the tire pressure warning system may not operate properly
●
In the following cases, the tire pressure warning system may not operate properly.
•
If non-genuine Lexus wheels are used.
•
A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
•
A tire has been replaced with a tire that is not of the specified size.
8-5. Tire maintenance
575
8
Maintenance and car
e
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