Lexus RX 400h 450h TPMS Reset Procedure

Relearn Code: LEX-1

Relearn Procedures: Initialization following rotation and tire replacement:

1. Inflate all tires to pressure indicated on tire placard.
2. Turn ignition to ON position (engine off).
3. Hold down tire pressure warning reset switch until TPMS telltale blinks 3 times.
4. It will take several minutes for the ECU to receive signals from the sensors and complete initialization.

*A properly formatted scan tool is required to learn new sensor IDs when replacing sensors.

**Vehicle may be equipped with a Main/2nd switch located at base of driver side knee bolster, underneath glove box, or inside glove box. Sensor IDs must be written to the position the switch is pressed.