2005 Lexus GX 470 Owners Manual - Page 599

CHASSIS CHECKING TIRE INFLATION PRESSURE The recommended cold tire inflation pressures, tire sizes and the combined weight of occupants and cargo (vehicle capacity weight) are described on page 570 and 627. They are also described on the tire and loading information label as shown. You should check the tire inflation pressure every two weeks, or at least once a month. And do not forget the spare! The following instructions for checking inflation pressure should be observed: tire 63PY020 D The pressure should be checked only when the tires are cold. If your vehicle has been parked for at least 3 hours and has not been driven for more than 1.5 km or 1 mile since, you will get an accurate cold tire inflation pressure reading. D If you cannot adjust the tire pressure when the tires are cold, add 20 kPa (0.2 kgf/cm2 or bar, 2.9 psi) to 30 kPa (0.3 kgf/cm2 or bar, 4.3 psi) more to the front tires and rear tires than the cold tire pressure, but never exceed the maximum cold tire pressure molded on the tire sidewall. 574