Toyota Corolla Manuals

Toyota Corolla: Tires / 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.

If the tire pressure drops below a predetermined level, the driver is warned by a warning light.

■ 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.

■ 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 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 tires not equipped with 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.
  • Performance may be affected in the following situations.
    • Near a TV tower, electric power plant, gas station, radio station, large display, airport or other facility that generates strong radio waves or electrical noise.
    • When carrying a portable radio, cellular 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

The warning of the tire pressure warning system will change in accordance with driving conditions. 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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    Installing tire pressure warning valves and transmitters (vehicles with a tire pressure warning system)

    When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer and the tire pressure warning system must be initialized...

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    A - Rear interior light

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    C - Front interior/personal lights

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