2009 Lexus GS 450h Owners Manual - Page 513
2009 Lexus GS 450h Manual
Page 513 highlights
4-3. Do-it-yourself maintenance n How to initialize the tire pressure warning system STEP 1 Park the vehicle in safe place and turn the "POWER" switch to OFF. While the vehicle is moving, initialization is not performed. STEP 2 Adjust the tire inflation pressure to the specified cold tire inflation pressure level. (→P. 572) Make sure to adjust the tire pressure to the specified cold tire inflation pressure level. The tire pressure warning system will operate based on this pressure level. STEP 3 STEP 4 Turn the "POWER" switch to ON mode. Push and hold the tire pressure warning reset switch until the tire pressure warning light blinks slowly three times and the message "PRESSURE INITIAL" appears on the multi-information display. STEP 5 Wait for a few minutes with the ON mode, and then turn the "POWER" switch to OFF. 454 GS_HV_U (OM30B44U) March 8, 2010 10:03 am