2008 Lexus RX 400h Owners Manual - Page 331
2008 Lexus RX 400h Manual
Page 331 highlights
4-3. Do-it-yourself maintenance n Selecting ID codes When replacing tires, make sure to select the ID code set that matches the new tire set. If the tire pressure select switch is set to the wrong tire setting, the tire pressure warning system will not operate properly. After driving for about 20 minutes, the tire pressure warning light comes on after blinking for 1 minute to indicate a system malfunction. "MAIN" "2nd" n When to replace your vehicle's tires 4 Tires should be replaced if: Maintenance and care l You have tire damage such as cuts, splits, cracks deep enough to expose the fab- ric or bulges indicating internal damage. l A tire goes flat repeatedly or cannot be properly repaired due to the size or loca- tion of a cut or other damage. If you are not sure, consult with your Lexus dealer. n Replacing tires and wheels If the ID code of the tire pressure warning valve and transmitter is not registered, the tire pressure warning system will not work properly. After driving for about 20 minutes, the tire pressure warning light comes on after blinking for 1 minute to indicate a system malfunction. n Tire life Any tire over 6 years old must be checked by a qualified technician even if they have seldom or never been used or damage is not obvious. n If the tread wears down below 0.16 in. (4 mm) on snow tires The effectiveness of snow tires is lost. 335