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.
■When replacing the tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the tire pressure warning system will not work properly. After driving for about 20 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system malfunction.
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, transmitters and tire valve caps
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and transmitter may not operate properly. If a liquid sealant is used, contact your Toyota dealer or other qualified service shop as soon as possible. Make sure to replace the tire pressure warning valve and transmitter when replacing the tire.
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the following circumstances:
When the tire pressure warning system is initialized, the current tire inflation pressure is set as the benchmark pressure.
■ How to initialize the tire pressure warning system
1. Park the vehicle in a safe place and stop the engine for 20 minutes or more.
Initialization cannot be performed while the vehicle is moving.
2. Adjust the tire inflation pressure to the specified cold tire inflation pressure level.
Make sure to adjust the tire pressure to the specified cold tire inflation pressure level. The tire pressure warning system will operate based on this pressure level.
3. Start the engine.
4. 4.2-inch display meter: Press or of the meter control switch to select .
7-inch display meter: Press or of the meter control switch to select .
5. 4.2-inch display meter: Press or to select "Vehicle Settings" and then press and hold .
7-inch display meter: Press or to select "Vehicle Settings" and then press and hold .
6. 4.2-inch display meter: Press or to select "TPWS setting" and then press .
7-inch display meter: Press or to select "TPWS setting" and then press .
7. 4.2-inch display meter: Press or to select "Set Pressure". Then press and hold .
7-inch display meter: Press or to select "Set Pressure". Then press and hold .
After setting the tire inflation pressure, a message indicating that setting has been completed will be displayed on the multi-information display.
Also, "--" is displayed for inflation pressure of each tire on the multi-information display while the tire pressure warning system determines the position.
8. Drive straight (with occasional left and right turns) at approximately 25 mph (40 km/h) or more for approximately 10 to 30 minutes.
When initialization is complete, the inflation pressure of each tire will be displayed on the multi-information display.
Even if the vehicle is not driven at approximately 25 mph (40 km/h) or more, initialization can be completed by driving for a long time.
However, if initialization does not complete after driving for 1 hour or more, park the vehicle in a safe place for approximately 20 minutes and then drive the vehicle again.
■When initializing
Also, make sure the tires are cold before carrying out initialization or tire inflation pressure adjustment.
■The initialization operation
■If the tire pressure warning system is not initialized properly
Perform the initialization procedure again.
WARNING
■When initializing the tire pressure warning system
Do not initializing tire inflation pressure without first adjusting the tire inflation pressure to the specified level. Otherwise, the tire pressure warning light may not come on even if the tire inflation pressure is low, or it may come on when the tire inflation pressure is actually normal.