2007 Lexus IS 250 Owners Manual - Page 299

4-3. Do-it-yourself maintenance STEP 4 The tire pressure initialization setting display Continue to press the < or > switch until the initialization setting display appears. It may take several minutes to complete the setting. Wait for several minutes before turning the engine switch OFF if necessary. Recording tire pressure settings Press the ON/OFF button for more than 3 seconds. At this time, the tire inflation pressure warning indicator flashes 3 times and the message showing that the initial setting is complete is displayed on the multi-information display. Registering and selecting tire inflation pressure sensor ID codes The tire inflation pressure sensor is equipped with a unique ID code. To select tire inflation pressure sensor ID codes, use the satellite switch. (→P. 222) n Registering ID codes Two separate sets of ID codes can be registered for each vehicle. This allows 2 separate sets of settings to be conveniently recorded for all season and winter tires. MAIN: The MAIN ID code is used for the factory installed tire pressure sensors. 2nd: The 2nd ID code is used for tire inflation pressure sensors associated with a secondary set of tires. Make sure to have all tire inflation pressure warning system ID codes registered by your Lexus dealer. ID codes must be reset when tires or wheels are replaced. 286