2002 Lexus SC 430 User Guide 1 - Page 316

CHASSIS NOTICE Low profile tire like 245/40ZR18 may have greater damage than usual tires to its tire wheel when receiving impact from the road surface. Therefore, pay attention to the following. D Be sure to use with proper tire pressure. If the tire pressure is low, the tire may have greater damage. For detailed information about tire pressure, see page 306 or 309. D Avoid driving onto high, sharp-edged objects and other road hazards. Failure to do so can lead to severe tire damage. The effectiveness of snow tires is lost if the tread wears down below 4 mm (0.16 in.). If you have tire damage such as cuts, splits, cracks deep enough to expose the fabric, or bulges indicating internal damage, the tire should be replaced. If a tire often goes flat or cannot be properly repaired due to the size or location of a cut or other damage, it should be replaced. If you are not sure, consult with your Lexus dealer. If an air loss occurs while driving, do not continue driving with a deflated tire. Driving even a short distance can damage a tire beyond repair. Any tires which are over 6 years old must be checked by a qualified technician even if damage is not obvious. Tires deteriorate with age even if they have never or seldom been used. This also applies to the spare tire and tires stored for future use. NOTICE D When you purchase new tires, consult your Lexus dealer. If you change from run-flat tires to standard tires, a spare tire should also be purchased. D When the tires must be repaired or replaced, have them repaired or replaced by Lexus dealer or authorized dealer. The tire pressure sensors will be affected by the installation or removal of tires. D When the tires must be replaced, replace the grommets for air pressure sensors as well. 312