2009 Toyota Highlander Owners Manual - Page 532

5-2. Steps to take in an emergency l If a window tint that affects the radio wave signals is installed. l If there is a lot of snow or ice on the vehicle, in particular around the wheels or wheel housings. l If non-genuine Toyota wheels are used. (Even if you use Toyota wheels, the tire pressure warning system may not work properly with some types of tires.) l If tire chains are used. Vehicles without compact spare tire l If the spare tire is in a location subject to poor radio wave signal reception. l If a large metallic object which can interfere with signal reception is put in the luggage room. n If the tire pressure warning light comes on after blinking for 1 minute frequently If the tire pressure warning light comes on after blinking for 1 minute frequently when the "POWER" switch is turned to ON mode, have it checked by your Toyota dealer. CAUTION n If the tire pressure warning light comes on Be sure to observe the following precautions. Failure to do so could cause loss of vehicle control and result in death or serious injury. l Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure immediately. l If the tire pressure warning light comes on even after tire inflation pres- sure adjustment, it is probable that you have a flat tire. Check the tires. If the tire is flat, change to the spare tire and have the flat tire repaired by the nearest Toyota dealer. l Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the brakes. n If a blowout or sudden air leakage should occur The tire pressure warning system may not activate immediately. 506