2003 Lexus GS 430 User Guide - Page 301

CHECKING TIRE PRESSURE CAUTION Keep your tire pressure properly. Otherwise, the following conditions may occur and cause an accident resulting in death or serious injuries. Low tire pressure (underinflation): 63G005 D Excessive wear D Uneven wear D Poor handling D Possibility of blowouts from overheated tire. D Poor sealing of the tire bead The recommended cold tire pressures, tire size and the vehicle capacity weight are given on the label. You should check the tire pressures every two weeks, or at least once a month. And don't forget the spare! The pressure for the spare tire should be the same with that for the standard tire. (See page 272 or 276.) Incorrect tire pressure may waste fuel, reduce the comfort of driving, reduce tire life and make your vehicle less safe to drive. If a tire needs frequent refilling, have it checked by your Lexus dealer. D Wheel deformation and/or tire separation High tire pressure (overinflation): D Poor handling D Excessive wear at the center of the tire tread D A greater possibility of tire damage from road hazards