The downhill assist control system helps to prevent excessive speed on steep downhill slopes.
The system will operate when the vehicle is traveling under 15 mph (25 km/h) with the accelerator and brake pedals released.
WARNING
â– When using downhill assist control system
Do not rely overmuch on the downhill assist control system.
This function does not extend the vehicle's performance limitations.
Always thoroughly check the road conditions, and drive safely.
System operation
Press the "DAC" switch
The downhill assist control system indicator will come on and the system will operate. When the system is in operation, the slip indicator light will flash, and the stop lights/high mounted stop lights will be lit. A sound may also occur during the operation. This does not indicate a malfunction.
Turning off the system
Press the "DAC" switch while the system is in operation.
The downhill assist control system indicator will flash as the system gradually ceases operation, and will turn off when the system is fully off.
Press the "DAC" switch while the downhill assist control system indicator is flashing to start the system again.
â– Operating tips
The system will operate when the shift lever is in a 1 range of S mode or R.
â– If the downhill assist control system indicator flashes
The system will gradually ceases operation. The indicator will flash during operation, and then go off when the system is fully off.
â– When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill assist control system will stop operating, a buzzer will sound and the downhill assist control system indicator will start flashing, and "Traction Control Turned OFF" will be shown on the multi-information display. Refrain from using the system until the downhill assist control system indicator stays on and the message goes off. (The vehicle can be driven normally during this time.)
â– Sounds and vibrations caused by the downhill assist control system
None of these are indicators that a malfunction has occurred.
â– System malfunction
In the following cases, have your vehicle checked by your Toyota dealer.
WARNING
â– The system may not operate on the following surfaces, which may lead to an accident causing death or serious injury
Occupant classification ecu
Components
On-vehicle inspection
Inspect occupant classification ecu
(vehicle not involved in collision)
Perform a diagnostic system check (see page rs-
236).
Inspect occupant classification ecu
(vehicle involved in collision)
Perform a diagnostic system check (see p ...
Illumination circuit
Description
The main body ecu receives information regarding the door courtesy switch and
door lock position
switch, and turns on the room light.
Wiring diagram
Inspection procedure
Perform active test by intelligent tester (main body ecu)
Connect the intelligent tester (with can ...
Evaporator temperature sensor circuit
Description
The no. 1 Cooler thermistor (evaporator temperature sensor) is installed on
the evaporator in the air
conditioning unit to detect the temperature of the cooled air that has passed
through the evaporator and to
control the air conditioner. It sends signals to the air conditioni ...