2005 Lexus RX 330 Owners Manual - Page 493

STARTING AND DRIVING TIRE PRESSURE WARNING SYSTEM The tire pressure warning system is designed to provide warning when tire inflation pressure is critically low while the vehicle is moving. The low tire pressure warning light comes on to inform you that such low tire pressure may hamper driving. This system is not designed to operate when the vehicle is stopped. Therefore, check the tire inflation pressure regularly. The recommended cold tire inflation pressure, tire size and the vehicle capacity weight are on the tire and loading information label. (For instructions, see "Checking tire inflation pressure" on page 570.) Installed tires should be of the specified size. They should be of the same size and construction. If tires other than the specified size are used, or if tires of different sizes or constructions are mixed, the tire pressure warning system will not function properly. Low tire pressure warning light This light comes on when the ignition key is turned to the "ON" position. It goes off after a few seconds. This indicates that the tire pressure warning system is functioning properly. If the low tire pressure warning light comes on or blinks while driving, do the following. D If the warning light comes on: The tire pressure is critically low. Adjust the tire inflation pressure to the specified level as soon as possible. (See "Tires and wheels" on page 566.) Once the ignition switch is turned off, the warning light also goes off. If the light comes on again when the vehicle is started after adjusting tire inflation pressure to the specified level, have the system checked at your Lexus dealer. 462