To keep driving safety and performance, the following systems operate automatically in response to various driving situations. Be aware, however, that these systems are supplementary and should not be relied upon too heavily when operating the vehicle.
Summary of the driving assist systems
■ ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the brakes are applied while driving on a slippery road surface
■ Brake assist
Generates an increased level of braking force after the brake pedal is depressed when the system detects a panic stop situation
■ VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on slippery road surfaces.
■ Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS. Helps to maintain directional stability when swerving on slippery road surfaces by controlling steering performance.
■ TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spinning when starting the vehicle or accelerating on slippery roads
■ Active Cornering Assist (ACA)
Helps to prevent the vehicle from drifting to the outer side by performing inner wheel brake control when attempting to accelerate while turning
■ Hill-start assist control
Helps to reduce the backward movement of the vehicle when starting on an uphill
■ EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn the steering wheel.
■ The Secondary Collision Brake
When the SRS airbag sensor detects a collision and the system operates, the brakes and brake lights are automatically controlled to reduce the vehicle speed and help reduce the possibility of further damage due to a secondary collision.
■When the TRAC/VSC systems are operating
The slip indicator light will flash while the TRAC/VSC systems are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may reduce power from the engine to the wheels. Pressing to turn the system off may make it easier for you to rock the vehicle in order to free it.
To turn the TRAC system off, quickly press and release .
The “Traction Control Turned OFF” will be shown on the multi-information display.
Press again to turn the system back on.
■Turning off both TRAC and VSC systems
To turn the TRAC and VSC systems off, press and hold for more than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “Traction Control Turned OFF” will be shown on the multi-information display.*
Press again to turn the system back on.
■When the message is displayed on the multi-information display showing that TRAC has been disabled even if has not been pressed
TRAC is temporary deactivated. If the information continues to show, contact your Toyota dealer.
■Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will operate:
■Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and hill-start assist control systems
■Active Cornering Assist operation sounds and vibrations
When the Active Cornering Assist is operated, operation sounds and vibrations may be generated from the brake system, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard. This does not indicate a malfunction.
■Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automatically re-enabled in the following situations:
■Operating conditions of Active Cornering Assist
The system operates when the following occurs.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheating when there is frequent steering input over an extended period of time. The steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or stop the vehicle and turn the engine off. The EPS system should return to normal within 10 minutes.
■Secondary Collision Brake operating conditions
The system operates when the SRS airbag sensor detects a collision while the vehicle is in motion. However, the system does not operate in any of the following situations.
■Secondary Collision Brake automatic cancellation
The system is automatically canceled in any of the following situations.
WARNING
■The ABS does not operate effectively when
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a safe distance from the vehicle in front of you, especially in the following situations:
■TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road surfaces, even if the TRAC/VSC system is operating. Drive the vehicle carefully in conditions where stability and power may be lost.
■Active Cornering Assist does not operate effectively when
■Hill-start assist control does not operate effectively when
■When the TRAC/VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an accident. Exercise particular care when the indicator light flashes.
■When the TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these are the systems to help ensure vehicle stability and driving force, do not turn the TRAC/VSC systems off unless necessary.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to the recommended tire inflation pressure level. The ABS, TRAC and VSC systems will not function correctly if different tires are installed on the vehicle.
Contact your Toyota dealer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may cause a system to malfunction.
■Secondary Collision Brake
Do not rely solely upon the Secondary Collision Brake. This system is designed to help reduce the possibility of further damage due to a secondary collision, however, that effect changes according to various conditions. Overly relying on the system may result in death or serious injury.
■ Trunk opener
Pull the lever upward to release the trunk lid.
■ Trunk release button (vehicles with a smart key system)
While carrying the electronic key, press the button on the trunk lid.
When all the doors are unlocked using one of the following methods, the trunk can be opened without the electronic key:
Entry function Wireless remote control Door lock switches Automatic door unlocking system Mechanical key