2007 Lexus LX 470 Owners Manual - Page 308

4-3. Do-it-yourself maintenance Initializing the tire pressure warning system n The tire pressure warning system must be initialized in the following circumstances: l When rotating the tires on vehicles differing with front and rear tire inflation pressures. l When changing the tire inflation pressure by changing traveling speed or load weight, etc. l When changing the tire size. When the tire pressure warning system is initialized, the current tire inflation pressure is set as the pressure benchmark. n How to initialize the tire pressure warning system STEP 1 Park the vehicle in safe place and turn the ignition key to the "LOCK" position. 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. 376) 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 ignition key to the "ON" position. Push and hold the tire pressure warning reset switch until the tire pressure warning light blinks slowly three times. STEP 5 Wait for a few minutes with the "ON" position, and then turn the ignition key to the "LOCK" position. 294