To help enhance 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.
Helps to prevent wheel lock when the brakes are applied suddenly, or if the brakes are applied while driving on a slippery road surface, or in offroad conditions (such as rough roads, sand and mud).
Generates an increased level of braking force after the brake pedal is depressed, when the system detects a panic stop situation.
Helps the driver to control skidding when swerving suddenly or turning on slippery road surfaces.
Helps to maintain drive power and prevent the 4 wheels from spinning when starting the vehicle or accelerating on slippery roads.
Helps to prevent the vehicle from rolling backwards when starting on an incline or slippery slope.
KDSS helps to ensure ride comfort and handling response by using a hydraulic control system to control the suspension stabilizer bars in response to road surface and driving conditions during cornering or offroad driving.
Helps to adjust the wheel turning angle in accordance with the vehicle speed and steering wheel movement.
Helps the driver to control trailer sway by selectively applying brake pressure for individual wheels and reducing engine torque when trailer sway is detected.
Trailer Sway Control is part of the VSC system and will not operate if VSC turned off or experiences a malfunction.
When the VSC/Trailer Sway Control/Active TRAC/hill-start assist control systems are operating
The slip indicator light flashes to indicate that the VSC/Trailer Sway Control/Active TRAC/hillstart assist control systems have been engaged.
The stop lights and high mounted stoplight turn on when the hillstart assist control system or Trailer Sway Control is operating.
To disable Active TRAC and/or VSC and Trailer Sway Control
If the vehicle gets stuck in fresh snow or mud, Active TRAC, VSC and Trailer Sway Control may reduce power from the engine to the wheels. You may need to turn the system off to enable you to rock the vehicle in order to free it.
Quickly push and release the button to turn off Active TRAC.
The “TRAC OFF” will be shown on the multi-information display.
This mode can be used when the transfer mode is H4.
Push the button again to turn the system back on.
Push and hold the button for more than 3 seconds while the vehicle is stopped to turn off Active TRAC, VSC and Trailer Sway Control.
The VSC OFF indicator light will come on and the “TRAC OFF” will be shown on the multi-information display.
Push the button again to turn the system back on.
Active TRAC, hill-start assist control, Crawl Control cannot be operated.
Contact your Toyota dealer.
Turning the “ENGINE START STOP” switch off after turning off the Active TRAC and VSC systems will automatically re-enable them.
If only the Active TRAC system is turned off, the Active TRAC system will turn on when vehicle speed increases.
If the Active TRAC, VSC and Trailer Sway Control are turned off, the systems will not turn on even when vehicle speed increases.
The brake system may overheat. In this case, a buzzer will sound, and the “TRAC OFF” will be displayed on the multi-information display, and Active TRAC and hill-start assist control will be temporarily inoperable. In this event, stop the vehicle immediately in a safe place, and allow the brake system to cool down sufficiently until the “TRAC OFF” on the multi-information display go off. (There is no problem with continuing normal driving.)
Sounds and vibrations caused by the Multi Terrain ABS, brake assist, Active TRAC, VSC, Trailer Sway Control, hill-start assist control and VGRS
Any of the following conditions may result in an accident which could cause death or serious injury:
The Multi Terrain 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.
Directional control and power may not be achievable while driving on slippery road surfaces, even if the Active TRAC is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
Do not overly rely on the hill-start assist control. The hill-start assist control may not operate effectively on steep inclines and roads covered in ice.
Be especially careful and drive at a speed appropriate to the road conditions.
As there are systems to ensure vehicle stability and driving force, do not turn off Active TRAC, VSC and Trailer Sway Control unless necessary.
The slip indicator light flashes. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indicator light flashes.
Make sure that all tires are of the same size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to the specified tire pressure level.
The Multi Terrain ABS, Active TRAC, VSC and Trailer Sway Control will not function correctly if different tires are fitted on the vehicle.
Contact your Toyota dealer for further information when replacing tires or wheels.
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may cause the system to malfunction.
The Trailer Sway Control system is not able to reduce trailer sway in all situations.
Depending on many factors such as the conditions of the vehicle, trailer, road surface, and driving environment, the Trailer Sway Control system may not be effective. Refer to your trailer owner’s manual for information on how to tow your trailer properly.
Observe the following precautions.
Failing to do so may cause death or serious injury.
Do not try to control trailer swaying by turning the steering wheel.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer should stabilize.
In the following situations, there is the possibility that a system malfunction has occurred, and drive comfort and the vehicle’s ability to travel on poor road surfaces may be reduced. Take the vehicle to your Toyota dealer immediately.