2008 Toyota Highlander Owners Manual - Page 470

4-3. Do-it-yourself maintenance NOTICE n Repairing or replacing tires, wheels and tire pressure warning valves and transmitters l When removing or fitting the wheels, tires or the tire pressure warning valve and transmitter, contact your Toyota dealer as the tire pressure warning valve and transmitter may be damaged if not handled correctly. l When replacing tires, make sure also to replace the tire pressure warning valve and transmitter grommets. n Do not use puncture sealant sprays to repair flats Puncture sealant sprays may damage tire pressure warning valves and transmitters. n Driving on rough roads Take particular care when driving on roads with loose surfaces or potholes. These conditions may cause losses in tire inflation pressure, reducing the cushioning ability of the tires. In addition driving on rough roads may cause damage to the tires themselves, as well as the vehicle's wheels and body. n If tire inflation pressures become low while driving Do not continue driving, or your tires and/or wheels may be ruined. 442