Toyota Highlander manuals

Toyota Highlander Owners Manual: Downhill assist control system

With the downhill assist control system, the vehicle is able to descend a steep hill, maintaining a constant low speed of about 3 mph (5 km/h) without brake pedal operation.

Activating the downhill assist control system

Activating the downhill assist control system press the dac switch.

The downhill assist control system indicator will come on to indicate that the downhill assist control system is activated.

Pressing the switch again turns the system off.

Toyota Highlander. Activating the downhill assist control system


While the downhill assist control system is operating

The slip indicator will flash to indicate that the downhill assist control system is operating, and the stop lights and high mounted stoplight will turn on.

Toyota Highlander. While the downhill assist control system is operating


Conditions in which the downhill assist control system does not operate

If the dac switch is turned off during operation of the downhill assist control system

The downhill assist control system gradually ceases operation. The downhill assist control system indicator will flash during the canceling operation, and then go off when the system is fully off.

Downhill assist control system operation sound

When the downhill assist control system operates continuously

The brake actuator may overheat. In that case, the downhill assist control system will stop operating, a buzzer will sound and the downhill assist control system indicator will start flashing. Refrain from using the system until the downhill assist control system indicator stays on. (There is no problem with continuing to drive normally.)

If the slip indicator comes on

It may indicate a malfunction in the system. Contact your toyota dealer.

Warning


Conditions which may affect the downhill assist control system operation

  • Do not rely too heavily on the downhill assist control system. On extremely steep inclines, icy surfaces or muddy roads, the vehicle may slip and the system may not be able to maintain the constant low vehicle speed of about 3 mph (5 km/h), leading to an accident causing death or serious injury.
  • Do not shift the shift lever to r while driving forward, or to d while driving backward. Doing so may cause the wheels to lock up, leading to an accident causing death or serious injury. In addition, excessive stress will be applied to the automatic transmission, possibly resulting in damage.
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