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Tire Pressure Warning System: Precaution

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
SYSTEM NAME - REFERENCE

System Name See Procedure
Power Window Control System INITIALIZATION
Sliding Roof System
  1. TIRE PRESSURE WARNING SYSTEM PRECAUTION 
    1. When the tire pressure warning light comes on, immediately check the air pressure of all tires and adjust to the specified pressure.

      Standard pressure 

      STANDARD PRESSURE

      Item Tire Size Specified Condition
      Front 215/45 R17 220 kPa (2.2 kgf/cm2, 32 psi)
      Rear 215/45 R17 200 kPa (2.0 kgf/cm2, 29 psi)
      Fig 1: Identifying Illumination Of Tire Pressure Warning Light
      G04223077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. This system requires initialization after changing tires or wheels, or after rotating the tires (See SYSTEM DESCRIPTION  ).

      Set tire pressure within the specified range before initialization. If the tire pressure is not within the specified range, the tire pressure warning system will not function.

    3. In the following cases, the system may not operate normally.
      • A compact spare tire, snow tires, or tire chains are used.
      • The tire pressure is excessively higher than specified, or tire pressure suddenly drops due to bursting or other causes.
      • The vehicle is driven on a slippery road surface such as rough or frozen roads.
      • The vehicle speed is less than 30 km/h (19 mph) or more than 100 km/h (62 mph), and the driving duration is less than 5 minutes.
      • The tires differ in tread pattern or by manufacturer.
      • The tires are not the specified size.
      • The tread wear is very different among the installed tires.
      • During rapid acceleration / deceleration or sharp turns.
      • Towing a trailer.
      • The loading is over the limit or imbalance.
      • Initialization was not performed correctly after replacing or rotating tires or wheels.
      • The outside temperature is below 0°C (32°F) or above 40°C (104°F).
  2. FAIL-SAFE FUNCTION 
    1. When a system malfunction occurs in the tire pressure warning system, the tire pressure warning light blinks.
    2. The result of this diagnosis is stored in the skid control ECU.
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