2006 Lexus GS 300 Owners Manual - Page 584

CHASSIS REPLACING WHEELS As you might have difficulty in identifying a flat or deflated tire, a tire pressure warning system is provided on this vehicle. When replacing the wheels, be sure to install tire pressure sensors on the wheels. There are 2 ways to set up the tire pressure sensors. a. Remove the sensor from the old wheel and install it to the new wheel. b. Use a new wheel and sensor. You have to register an ID code for a new sensor. Up to 2 sets of codes can be registered. As one ID for the originally installed sensor is registered at "MAIN" of the selector switch, use the "2nd" position to register an ID for the new sensor. You do not need to re−register the ID code for any other replacements. For the use of the originally installed tires, put the selector switch at "MAIN" and for the use of tires purchased later, put the switch at "2nd". For the sensor selector switch, see page 442. CAUTION D Have the tires, wheels or sensors replaced and ID codes registered by Lexus dealer. If you need sensors, purchase from Lexus dealer. D The sensor nuts should always be tightened to a torque of 4 N·m (0.4 kgf·m, 2.9 ft·lbf). D The use of non−genuine wheels will cause the tire pressure sensor to transmit the electronic code in different manner, resulting in the failure of the system. When to replace your wheels If you have wheel damage such as bending, cracks or heavy corrosion, the wheel should be replaced. If you fail to replace a damaged wheel, the tire may slip off the wheel or cause loss of handling control. Replacement with used wheels is not recommended as they may have been subjected to rough treatment or high mileage and could fail without warning. Also, bent wheels which have been straightened may have hidden structural damage and therefore should not be used. Never use an inner tube in a leaking wheel which is designed for a tubeless tire. 560