The vehicle stability control system helps provide integrated control of the systems such as anti-lock brake system, traction control, engine control, etc. This system automatically controls the brakes and engine to help prevent the vehicle from skidding when cornering on a slippery road surface or operating steering wheel abruptly.
This system will activate when your vehicle speed reaches or exceeds 15 km/h (9 mph), and will deactivate when the vehicle speed reduces to below 15 km/h (9 mph).
You may hear a sound in the engine compartment for a few seconds when the engine is started or just after the vehicle begins to move. This means that the system is in the self-check mode but does not indicate a malfunction.
^Do not rely excessively on the vehicle stability control system. Even if the vehicle stability control system is operating, you must always drive carefully and attentively to avoid serious injury. Reckless driving will result in an unexpected accident. If the slip indicator light flashes and an alarm sounds, special care should be taken while driving.
^-Only use tires of specified size. The size, manufacture, brand and tread pattern for all 4 tires should be the same. If you use the tires other than specified, different type or size, the vehicle stability control system may not function correctly. When replacing the tires or wheels, contact your Toyota dealer. (See "Checking and replacing tires" on page 357 in Section 7-2.)
situations where the road surface is covered with ice or snow, your vehicle should be fitted with snow tires or tire chains.
In the following cases, contact your Toyota dealer:
^ The warning light does not come on after the ignition switch is set at ON.
^ The warning light remains on after the ignition switch is set at ON.
^ The warning light comes on while driving.
If the vehicle is going to skid during driving, the slip indicator light blinks and an alarm sounds intermittently. Special care should be taken while driving.
The slip indicator light comes on for a few seconds when the ignition switch is set at ON. If the indicator light does not come on when the ignition is turned on, contact your Toyota dealer.
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