2007 Lexus IS 250 Owners Manual - Page 302

4-3. Do-it-yourself maintenance n When the initialization of the tire inflation pressure warning system has failed Initialization can be completed in a few minutes. However, in the following cases, the settings have not been recorded and the system will not operate properly. If repeated attempts to record tire inflation pressure settings are unsuccessful, have the vehicle inspected by your Lexus dealer. l When operating the satellite switch, the warning light does not flash and the set- ting message does not appear on the multi-information display. (The tires cannot be initialized while the vehicle is moving.) l After driving for approximately 20 minutes since the initialization has been completed, the warning light flashes. n Routine tire inflation pressure checks The tire inflation pressure warning system does not replace routine tire inflation pressure checks. Make sure to check tire inflation pressure as part of your routine of daily vehicle checks. 4 Maintenance and care 289