Toyota Hilux (2017 year). Manual - part 88

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WARNING

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The ABS does not operate effectively when

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The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).

●

The vehicle hydroplanes while driving at high speed on the wet or slick
road.

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Stopping distance when the ABS is operating may exceed that of nor-
mal 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:

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When driving on dirt, gravel or snow-covered roads

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When driving with tire chains

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When driving over bumps in the road

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When driving over roads with potholes or uneven surfaces

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TRC/A-TRC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC/A-TRC system is operating. 
Drive the vehicle carefully in conditions where stability and power may be
lost.

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Hill-start assist control

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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 with ice.

●

Unlike the parking brake, the hill-start assist control is not intended to hold
the vehicle stationary for an extended period of time. Do not attempt to use
the hill-start assist control to hold the vehicle on an incline, as doing so
may lead to an accident.

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When the VSC/Trailer Sway Control is activated
The slip indicator light flashes. Always drive carefully. 
Reckless driving may cause an accident. Exercise particular care when the
indicator light flashes.

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4-5. Using the driving support systems

WARNING

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When the TRC/A-TRC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRC/A-TRC/VSC/Trailer Sway Control systems off
unless necessary.

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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, TRC, A-TRC, VSC, Trailer Sway Control, hill-start assist control
and downhill assist control systems will not function correctly if different tires
are installed on the vehicle.
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional for further information when replacing tires or
wheels.

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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 the system to malfunction.

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Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situ-
ations. Depending on many factors such as the conditions of the vehicle,
trailer, road surface, and driving environment, the Trailer Sway Control sys-
tem may not be effective. Refer to your trailer owner’s manual for informa-
tion on how to tow your trailer properly.

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If trailer sway occurs (vehicles with Trailer Sway Control)
Observe the following precautions.
Failing to do so may cause death or serious injury.

●

Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.

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Begin releasing the accelerator pedal immediately but very gradually to
reduce speed.
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. (

→P. 231)

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Downhill assist control system

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Press the “DAC” switch. The
downhill assist control system
indicator light comes 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.

∗

: If equipped

The downhill assist control system helps to prevent excessive
speed on steep downhill slopes.
The system will operate when the vehicle is traveling under
30 km/h (18 mph), the front-wheel drive control switch is in the
L4 or H4 position and the rear differential is not locked.

System operation

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Operating tips

X

Vehicles with automatic transmission

The system will operate when the shift lever is in a position other than P, how-
ever to make effective use of the system it is recommended that the shift
lever be shifted to range 2 or 1 of S.

X

Vehicles with manual transmission

To make effective use of the system, it is recommended to drive in a low gear.

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If the downhill assist control system indicator flashes

●

In the following situations, the indicator flashes and the system will not oper-
ate:
• The front-wheel drive control switch is in the H2 position.
• The shift lever is in P. (vehicles with automatic transmission)
• The rear differential is locked. (if equipped)
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 30 km/h (18mph).
• The brake system overheats.

The system will cease operation. At this time, a buzzer sounds, the down-
hill assist control system indicator flashes and “TRC turned off” is shown
on the multi-information display. Refrain from using the system until the
downhill assist control system indicator stays on and “TRC turned off” dis-
played on the multi-information display goes out. (The vehicle can be
driven normally during this time.)

●

In the following situations, the indicator flashes to alert the driver, but the
system will operate:
• The shift lever is in N. (vehicles with automatic transmission)
• The shift lever is in N and the clutch pedal is depressed. (vehicles with

manual transmission)

• The “DAC” switch is turned off while the system is operating. 

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

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Sounds and vibrations caused by the downhill assist control system

●

A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in downhill assist control system.

●

Either of the following conditions may occur when the downhill assist control
system is operating. None of these are indicators that a malfunction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.