TPMS Reminder Reset - Procedure 17: Initialization

The purpose of Initialization is to tell the TPMS ECU what the inflation pressures should be for the current set of tires. Perform Initialization if the specification changes.

Also perform initialization in the following cases:

• After replacement of the tire pressure warning 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.
• After rotating the tires on vehicles whose front and rear tire inflation pressure standard values are different.

1. Turn the ignition switch to ON.
2. Press and hold the tire pressure warning reset switch for 3 seconds or more so that the tire pressure warning light blinks 3 times. See Fig 1.
   NOTE: On some models the tire pressure warning reset switch may be located in the glove box. On newer Prius models the switch is on the steering wheel. See Fig 2.
3. Turn the ignition switch to OFF.
4. Connect Techstream to the DLC3.
5. Turn the ignition switch to ON and turn the tester on.
6. Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
7. Check that the initialization has been completed.
8. Confirm that the tire pressure data of all tires are displayed on the tester screen.

Fig 1: Identifying Tire Pressure Warning Reset Switch (Typical)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig 2: Identifying Tire Pressure Warning Reset Switch (Prius)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.