1998 Toyota RAV4 Owners Manual - Page 28

Installed tires should be of the specified size. They should be of the same size and construction. If tires other than of the specified size are used, or if tires of different sizes or constructions are mixed, the tire pressure warning system will not function properly. LOW TIRE PRESSURE WARNING LIGHT This light comes on when the motor switch is turned to the "ON" position. It goes off after about 3 seconds. This indicates that the tire pressure warning system is functioning properly. If the low tire pressure warning light comes on while driving, adjust tire pressure to the specified level. (See "Tires" in Part 9.) After the tire pressure is adjusted, the light should go off after driving at about more than 30 km/h (19 mph) for some time. If the light still remains on, have the tire pressure warning system checked at your EV service station. The tire pressure warning system does not function properly under certain circumstances. In the following cases, the low tire pressure warning light may not come on even if the tire pressure is low, or it may come on when the tire pressure is actually normal. D If the tread wear is uneven among the installed tires. D If a compact spare tire, snow tires, or tire chains are used. D If the tire pressure is excessively higher than specified, or if tire pressure is suddenly reduced due to bursts or other causes. D If the vehicle is driven on a slippery road surface such as rough road and frozen road. D If the vehicle speed is less than 30 km/h (19 mph) and if the driving duration is less than about 5 minutes. SET SWITCH This switch is provided to perform inspection by EV service station, so you do not need to operate it in ordinary driving. 20