Toyota Hilux (2017 year). Manual - part 83

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4

4-5. Using the driving support systems

D

riv

in

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Rear differential lock system

∗

Press the rear differential lock
switch to lock the rear differential.

The rear differential lock indicator
comes on.
To unlock the rear differential, push
the switch again.

∗

: If equipped

The rear differential lock system is provided for use only when
wheel spinning occurs in a ditch or on a slippery or ragged sur-
face.
This differential lock system is effective in case one of the rear
wheels is spinning.

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4-5. Using the driving support systems

4WD models only: Before using
the rear differential lock system,
turn the front-wheel drive con-
trol switch to L4 and try to move
the vehicle. (

→P. 332, 335)

If this is not sufficient, use the rear
differential lock system as well.

Reduce the vehicle speed to
less than 8 km/h (5 mph).

Make sure that the wheels are not
spinning.

Press the rear differential lock
switch.

The rear differential lock indicator
flashes while the rear differential is
being locked.
If pressing the rear differential lock
switch without following steps 
and  , the rear differential lock
indicator flashes three times and a
buzzer sounds three times, and the
rear differential cannot be locked.
Try steps   and   again.

Using the rear differential lock system

1

8 km/h (5 mph)

2

(Flashes)

3

1

2

1

2

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4-5. Using the driving support systems

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D

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Gently depress the accelerator
pedal.

Check that the rear differential
lock indicator comes on.

The rear differential lock indicator
comes on when locking the rear
differential is completed.
If the rear differential lock indicator
does not stop flashing after press-
ing the rear differential lock switch,
perform any of the followings while
turning the steering wheel left and
right.

• Accelerating
• Decelerating

Unlock the rear differential as soon as the vehicle moves. To unlock
the rear differential, push the switch again.

4

(Comes on)

5

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4-5. Using the driving support systems

■

Locking the rear differential
The following systems do not operate when the rear differential is locked. 
It is normal operation for the ABS warning light, VSC OFF indicator (if
equipped) and “TRC OFF” indicator (if equipped) to be on or for “TRC
TURNED OFF”/“TRC turned off” to be displayed on the multi-information dis-
play (if equipped) at this time.
• ABS
• Brake assist (if equipped)
• VSC (if equipped)
• TRC/A-TRC (if equipped)
• Trailer Sway Control (if equipped)
• Hill-start assist control (if equipped)
• Downhill assist control (if equipped)

■

For easy unlocking
Slightly turn the steering wheel in either direction while the vehicle is in
motion.

■

Automatic system cancelation of the rear differential lock system
The rear differential lock is also unlocked in any of the following situations:

●

The front-wheel drive control switch is turned to H2 or H4 (4WD models)

●

The engine switch is turned to the “ACC” or “LOCK” position (vehicles with-
out smart entry & start system) or ACCESSORY or off (vehicles with smart
entry & start system)

■

After unlocking the rear differential
Check that the indicator goes off.

WARNING

■

To avoid an accident
Failure to observe the following precautions may result in an accident.

●

Do not use the rear differential lock system except when wheel spinning
occurs in a ditch or on a slippery or rugged surface. Large steering effort
and careful cornering control will be required.

●

Do not lock the rear differential until the wheels have stopped spinning.
Otherwise, the vehicle may move in an unexpected direction when the dif-
ferential lock is engaged, resulting in an accident. This may also lead to
possible damage to rear differential lock component parts.

●

Do not drive over 8 km/h (5 mph) when the differential is locked.

●

Do not keep driving with the rear differential lock switch on.