2009 Lexus GX 470 Owners Manual - Page 342
2009 Lexus GX 470 Manual
Page 342 highlights
4-3. Do-it-yourself maintenance Installing tire pressure warning valves and transmitters When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new tire pressure warning valve and transmitter ID codes must be registered in the tire pressure warning computer and tire pressure warning system must be initialized. Have tire pressure warning valve and transmitter ID codes registered by your Lexus dealer. Registering and selecting ID codes n Registering ID codes 2 sets of tire pressure warning valve and transmitter ID codes can be registered. Once a second set of tires is registered at "2nd", you can switch between tire set settings simply by pressing the tire pressure warning select switch. There are 2 settings: "MAIN" position: The ID code of the tire pressure warning valve and transmitter on the tires originally installed on the vehicle is registered. "2nd" position: The code is not registered. When you replace a new set of tires, purchase tire pressure warning valves and transmitters from your Lexus dealer and have the new ID code registered by your Lexus dealer. 346