Tire Pressure Warning System Initialization

Tire Pressure Warning System Reset Procedure

The tire pressure warning system needs to be initialized after tire or wheels are replaced or rotated,

To initialize the system, perform the following:

1. Park the vehicle at a safe place with the parking brake applied and turn the ignition switch to "LOCK".
2. Adjust the pressure of all of the installed tires to the specified level.
3. Turn the ignition switch to "ON".

If the low tire pressure warning message "Low Tire" appears in the multi-information display, push the reset switch for a few seconds and make sure the warning message goes out.

4. With the vehicle stopped, push and hold the reset switch until "Pressure Initial" appears in the multi-information display.

Initialization is completed after driving at speeds of 19 mph (30 km/h) or over for more than one hour. If the following conditions are satisfied, intitialization will be completed in about one hour.

- The vehicle speed is between 31 mph (50 km/h) and 62 mph (100 km/h).
- The roads are dry, smooth and straight.
- The number of passengers is one or two (including the driver).

If you make a mistake in the middle of initialization, perform the operation from the beginning again.

Do not push the reset switch without adjusting the tire inflation pressure to the specified level. Otherwise, the low pressure warning may not turn on even if the tire inflation pressure is low, or it may turn on when the tire inflation pressure is actually normal.

If you push the reset switch while driving, initialization is not performed.

If "Pressure Initial" does not appear when the reset switch is held down, the system may be malfunctioning. Have the vehicle checked by an authorized Lexus dealer as soon as possible.