Toyota RAV4 Owner's Manual page 511

510
7-3. Do-it-yourself maintenance
lems arise.
If the tire pressure drops below a
predetermined level, the driver is
warned by a message and a warn-
ing light. (P.566)
■ Routine tire inflation pressure
checks (vehicles with tire pressure
warning system)
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.
■ Situations in which the tire pres-
sure warning system may not oper-
ate properly (if equipped)
● In the following cases, the tire pres-
sure warning system may not operate
properly.
• If non-genuine Toyota 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.
• Tire chains, etc. are equipped.
• An auxiliary-supported run-flat tire is
equipped.
• If a window tint that affects the radio
wave signals is installed.
• If there is a lot of snow or ice on the
vehicle, particularly around the wheels
or wheel housings.
• If the tire inflation pressure is
extremely higher than the specified
level.
• If wheels without tire pressure warning
valves and transmitters are used.
• If the ID code on the tire pressure
warning valves and transmitters is not
registered in the tire pressure warning
computer.
• If the spare tire is in a location subject
to poor radio wave signal reception.
• If a large metallic object which can
interfere with signal reception is put in
the luggage compartment.
*
: Vehicles with full-size spare tire only
● Performance may be affected in the
following situations.
• Near a TV tower, electric power plant,
gas station, radio station, large dis-
play, airport or other facility that gen-
erates strong radio waves or electrical
noise
• When carrying a portable radio, cellu-
lar phone, cordless phone or other
wireless communication device
● When the vehicle is parked, the time
taken for the warning to start or go off
could be extended.
●
When tire inflation pressure declines
rapidly for example when a tire has
burst, the warning may not function.
■ Warning performance of the tire
pressure warning system (if
equipped)
The warning of the tire pressure warning
system will change in accordance with
the conditions under which it was initial-
ized. 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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