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Home › Lexus › 2021 › RC F Base › Repair and Diagnosis › Maintenance › Procedures › Maintenance Reminder Light (Reset Procedures) › Tire Pressure Monitor System Reminder › TPMS Reminder Reset - Procedure 04 › TPM Initialization

TPM Initialization

NOTE: Initialization is NOT required if re-inflating tires to the currently specified tire pressure.
NOTE: Before initialization, set the air pressure of all wheels, including the full-size spare tire, to the specified value. Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If the vehicle is not sufficiently cooled down, increase the air pressure by 20 to 30 kPa (0.2 to 0.3 kgf/cm2, 2.9 to 4.3 psi) above the specified value.
NOTE: Perform initialization in the following cases:
  • After replacement of the tire pressure ECU. Perform initialization after the transmitter ID registration is completed.
  • After replacement of the tire pressure warning valve and transmitter. Perform initialization after the transmitter ID registration is completed.
NOTE: Tire pressure warning light will not blink until the system initialization is complete.
  1. Turn the engine power switch to ON.
    • On 2007-14 IS models:  Repeatedly press either of the ARROW buttons on the TPMS reset switch until the initialization setting display appears. See Figure. Then press and hold the ON/OFF button until the tire pressure warning light blinks slowly 3 times to indicate that the initial setting is complete.
    • On All Other Models:  Press and hold the TPMS reset switch until the tire pressure warning light blinks slowly 3 times. See Figure.
    NOTE: Initialization will be completed if signals are received from all the wheels (including the spare tire).
  3. Turn the engine switch OFF.
  4. Wait for 2 or 3 minutes with the engine switch ON.
    NOTE:
    • The initialization is normally completed within 2 to 3 minutes.
    • If the initialization has not been completed successfully, DTC C2177/77 will be stored in the tire pressure warning ECU after a vehicle speed of at least 5 mph (8 km/h) for 20 minutes or more.
    • The initialization can be terminated by making a short circuit between terminals TC and CG of the DLC3 connector.

Confirm Initialization Has Been Completed: 

Check the data of tire pressure of all the wheels (including the ground spare tire) are displayed on the Techstream display to confirm that the initialization has been completed.

  1. Turn the engine switch off.
  2. Connect Techstream to the DLC3.
  3. Turn the engine switch on (IG).
  4. Turn Techstream on.
  5. Check the Data List. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
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