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Useful stuff Re: Tire Pressure Warning Light -------------------------------------------------------------------------------- from section 1-6 (k) Low Tire Pressure Warning Light This light warns that the tire inflation pressure of any one of the tires is critically low. The light comes on when the ignition key is turned to the “ON” position. It goes off after a few seconds. This indicates that the low tire pressure warning system is functioning properly. If the light comes on while driving, adjust tire inflation pressure to the specified level. (See “Tires” on page 286 in Section 8.) After the tire inflation pressure is adjusted, push the tire pressure warning system reset switch for a few seconds and make sure the warning light goes off. If the light still remains or blinks once every second, have the low tire pressure warning system checked at your Toyota dealer. If the light blinks once every three seconds, the low tire pressure warning system needs to be initialized. For details, see “Tire pressure warning system” on page 126 in Section 1- 7. from section 1-7 Tire pressure warning system The tire pressure warning system is designed to provide warning when tire inflation pressure of any one of the tires is critically low while the vehicle is moving. The low tire pressure warning light comes on to inform you that such low tire pressure may hamper driving. This system is not designed to operate when the vehicle is stopped. Therefore, check the tire inflation pressure regularly. The recommended cold tire inflation pressure, tire size and the vehicle capacity weight are on the tire and loading information label. (For instructions, see “Checking tire inflation pressure” on page 261 in Section 7- 2.) Installed tires should be of the specified size. They should be of the same size and construction. If tires other than 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 ignition key is turned to the “ON” position. It goes off after a few seconds. This indicates that the tire pressure warning system is functioning properly. If the low tire pressure warning light comes on or blinks while driving, do the following. If the warning light comes on: 1. Adjust the tire inflation pressure to the specified level as soon as possible. (See “Tires” on page 286 in Section 8.) 2. Push the tire pressure warning system reset switch for a few seconds and make sure the warning light goes off. If the light remains on after the reset switch has been pushed, have the tire pressure warning system checked at your Toyota dealer. If you have a flat tire, replace it with the spare tire. For details, see “If you have a flat tire” on page 219 in Section 4. If the warning light blinks once every second: The low tire pressure warning system may be malfunctioning. Contact your Toyota dealer. If the warning light blinks once every three seconds: The low tire pressure warning system needs to be initialized. Reset the system with the tire pressure warning system reset switch. (To reset the system, see “TIRE PRESSURE WARNING SYSTEM RESET SWITCH”.) 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 inflation pressure is low, or it may come on when the tire inflation pressure is actually normal. A compact spare tire, snow tires, or tire chains are used. The tire inflation pressure is excessively higher than specified, or tire inflation pressure suddenly drops due to bursting or other causes. The vehicle is driven on a slippery road surface such as rough or frozen roads. The vehicle speed is less than 30 km/h (19 mph) or more than 100 km/h (62 mph), and the driving duration is less than 5 minutes. The tires differ in tread pattern or manufacturer. The tires are not the specified size. The tread wear is very different among the installed tires. Rapid acceleration/deceleration or sharp turns is continued. Towing a trailer. The loading is over the limit or imbalanced. Initialization was not performed correctly after replacing or rotating tires or wheels. The outside temperature is below 0C (32F) or above 40C (104F). CAUTION When the tire pressure warning light comes on, observe the following instructions: Adjust the tire inflation pressure to the specified level as soon as possible. Avoid abrupt steering wheel maneuvering and braking. If the vehicle tires deteriorate, you could lose control of the steering wheel or the TIRE PRESSURE WARNING SYSTEM RESET SWITCH The tire pressure warning system need to be initialized in the following conditions: When the low tire pressure warning light blinks once every three seconds After replacing or rotating tires or wheels When initializing the system, the present tire condition is stored as a standard. To initialize the system, perform the following: 1. Park the vehicle at a safe place and apply the parking brake. Stop the engine. 2. Adjust the pressure of all the installed tires to the specified level. (See “Tires” on page 286 in Section 8.) 3. Turn the ignition key to “ON”. If the low tire pressure warning light comes on, push the reset switch for a few seconds and make sure the warning light goes off. 4. Push and hold the reset switch until the low tire pressure warning light blinks three times. Initialization is completed after driving at the speeds of 30 km/h (19 mph) or over for more than one hour. If the following driving conditions are satisfied, initialization will be completed in about one hour. The vehicle speed is between 50 km/h (31 mph) and 100 km/h (62 mph). The roads are dry, smooth and straight. The number of passengers is 1 or 2 (including driver). When initializing the system, make sure the low tire pressure warning light blinks three times. If the warning light does not blink three times, initializing will be failed and the tire pressure warning system will not function properly. Do not push the reset switch without adjusting the tire inflation pressure to the specified level. Otherwise, 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 inflation pressure is actually normal. If you push the reset switch while the vehicle is moving, initialization is not performed. If the low tire pressure warning light does not blink when you push and hold the reset switch, have the low pressure warning system checked at your Toyota dealer. When the warning light blinks once every three seconds while driving, you may be unable to reset the system. In this case, set the system again according to the above procedure. brakes, causing death or serious injury.