2008 Lexus GS 450h Owners Manual - Page 445

4-3. Do-it-yourself maintenance n When replacing wheels The wheels of your Lexus are equipped with tire pressure warning valves and transmitters that allow the tire pressure warning system to provide advanced warning in the event of a loss in tire inflation pressure. Whenever wheels are replaced, the tire pressure warning valves and transmitters must be installed. (→P. 436) CAUTION n When replacing wheels l Do not use wheels that are a different size from those recommended in the Owner's Manual, as this may result in loss of handling control. l Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing so may result in an accident, causing death or serious injury. NOTICE n Replacing tire pressure warning valves and transmitters l Because tire repair or replacement may affect the tire pressure warning valves and transmitters, make sure to have tires serviced by your Lexus dealer or other qualified service shop. In addition, make sure to purchase your tire pressure warning valves and transmitters at your Lexus dealer. l Ensure that only genuine Lexus wheels are used on your vehicle. Tire pressure warning valves and transmitters may not work properly with nongenuine wheels. 450 GS_HV_U March 29, 2010 3:31 pm