engine control TOYOTA HILUX 2021 (in English) Owner's Guide

3594-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
QTurning off TRC, A-TRC, VSC and Trailer Sway Control systems
Vehicles without multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The “TRC OFF” indicator light and VSC OFF indicator light will come on.*
Press again to turn the system back on.
Vehicles with multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRC turned off” will be
shown on the multi-information display.*
Press again to turn the system back on.
*: On vehicles with pre-collision system, pre-collision brake assist and pre-
collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. ( P. 283)
Q When “TRC OFF” indicator light comes on or the message is displayed
on the multi-information display sh owing that TRC/A-TRC has been dis-
abled even if has not been pressed
TRC, A-TRC and downhill assist control is temporary deactivated. If the indi-
cator light continues to remain on or the information continues to show, con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
Q Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer
Sway Control, TRC, A-TRC and the hill-start assist control systems
O A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just after the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
O Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

3604-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q Automatic reactivation of TRC, A-TRC, VSC and Trailer Sway Control
systems
After turning the TRC, A-TRC, VSC and Trailer Sway Control systems off, the
systems will be automatically re-enabled in the following situations:
O When the engine switch is turned to the “LOCK” position (vehicles without
smart entry & start system) or off (vehicles with smart entry & start system).
O If only the TRC/A-TRC system is turned off (P. 357), the TRC/A-TRC will
turn on when vehicle speed increases.
If the TRC, A-TRC, VSC and Trailer Sway Control systems are turned off
( P. 359), automatic re-enabling will not occur when vehicle speed
increases.
Q Operating conditions of the hill-start assist control
When the following four conditions are me t, the hill-start assist control will
operate:
O Vehicles with automatic transmission: The shift lever is in a position other
than P or N (when starting off forward/backward on an upward incline)
Vehicles with manual transmission: The shift lever is in a position other than
R when starting off forward on an upward incline, or the shift lever is in R
when starting off backward on an upward incline.
O The vehicle is stopped
O The accelerator pedal is not depressed
O The parking brake is not engaged
Q Automatic system cancelation of the hill-start assist control
The hill-start assist control will turn off in any of the following situations:
O Vehicles with automatic transmission: The shift lever is shifted to P or N
Vehicles with manual transmission: The shift lever is shifted to R when start-
ing off forward on an upward incline, or the shift lever is shifted to other than
R when starting off backward on an upward incline.
O The accelerator pedal is depressed
O The parking brake is engaged
O 2 seconds at maximum elapsed after the brake pedal is released

3654-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K513E_(EE)
QOperating tips (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 to select a lower
shift range.
Q The system will not operate when
O The transfer mode is in H2.
O The rear differential is locked. (if equipped)
Q If the downhill assist control system indicator flashes
O In the following situations, the indicator flashes and the system will not oper-
ate:
• The transfer mode is not in L4 or H4.
• The rear differential is locked. (if equipped)
• The shift lever is in P. (vehicles with automatic transmission)
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 30 km/h (18 mph).
• The brake system overheats.
O 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 clutch pedal is depressed. (vehicles with manual transmission)
• The “DAC” switch is turned off while the system is operating.
The system will gradually ceases operat ion. The indicator will flash during
operation, and then go off when the system is fully off.
Q 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 “TRC 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.)
Q Sounds and vibrations caused by the downhill assist control system
O 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.
O 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.

3664-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
Q System malfunction
In the following cases, have your vehicle checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
O The downhill assist control system indicator does not come on when the
engine switch is turned to the “ON” position (vehicles without smart entry &
start system) or IGNITION ON mode (vehicles with smart entry & start sys-
tem).
O The downhill assist control system indicator does not come on when the
“DAC” switch is pressed.
O The slip indicator comes on.
WARNING
QWhen using downhill assist control system
O 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.
O Vehicles with manual transmission: Drive in a low gear. Driving in a high
gear when using downhill assist control system may cause the engine to
stall, which may lose the brake effectiveness and lock the tires, resulting in
an accident.
O Vehicles with manual transmission: On a steep slope, use the engine brak-
ing efficiently. If the vehicle is driven in N or with the clutch pedal
depressed on a steep slope, the load on the brake increases and con-
trolling the vehicle speed may be impossible, resulting in an accident.
Q The system may not operate on the following surfaces, which may lead
to an accident causing death or serious injury
O Slippery surfaces such as wet or muddy roads
O Icy surface
O Unpaved roads

367
4
4-5. Using the driving support systems
Driving
HILUX_OM_OM0K513E_(EE)
AUTO LSD
The system can be used on Pre Runner and in 2WD mode on 4WD
models.
To turn the AUTO LSD system on,
quickly press and release .
The “AUTO LSD” indicator light
and VSC OFF indicator light will
come on. Press again to turn
the system off.
If the drive wheels spin, the slip
indicator flashes to indicate that
the AUTO LSD system has con-
trolled the spinning of the drive
wheels.
: If equipped
The AUTO LSD system aids traction by using the traction con-
trol system to control engine performance and braking when
one of the drive wheels begins to spin. The system should be
used only when one of the drive wheels spinning occurs in a
ditch or rough surface.
System operation
When the AUTO LSD system is operating

3684-5. Using the driving support systems
HILUX_OM_OM0K513E_(EE)
QIf the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
Q Reactivation of the VSC system linked to vehicle speed
When the AUTO LSD system is turned on, the VSC and TRC systems will
turn on automatically if vehicle speed increase.
Q If the brake system overheats
The system will cease operation and a buzzer will alert the driver. At this time,
the “AUTO LSD” indicator will flash and “TRC turned off” will be shown on the
multi-information display. Stop the vehicle in a safe place. (There is no prob-
lem with continuing normal driving.) The system will be automatically restored
after a short time.
WARNING
Q To avoid an accident
Failure to do so, a much greater steer ing effort and more careful cornering
control will be required.
O Do not use the AUTO LSD system in conditions other than when one of
the drive wheels spinning occurs in a ditch or rough surface.
O Do not drive with the AUTO LSD system continuously turned on.
NOTICE
QActivating while driving
Do not activate the AUTO LSD system if the wheel is slipping. Stop the slip-
ping or spinning before activating.

3744-6. Driving tips
HILUX_OM_OM0K513E_(EE)
Winter driving tips
OUse fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
O Have a service technician inspect the condition of the battery.
O Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
Perform the following according to the driving conditions:
O Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to prevent it from freezing.
O To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
O Check for and remove any excess ice or snow that may have accu-
mulated on the exterior lights, vehicle’s roof, chassis, around the
tires or on the brakes.
O Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Carry out the necessary preparations and inspections before
driving the vehicle in winter. Always drive the vehicle in a man-
ner appropriate to the prevailing weather conditions.
Preparation for winter
Before driving the vehicle

3764-6. Driving tips
HILUX_OM_OM0K513E_(EE)
QTire chain installation
Observe the following precautions when installing and removing chains:
O Install and remove tire chains in a safe location.
O Install tire chains on the rear tires. Do not install tire chains on the front tires.
O Install tire chains on rear tires as tightly as possible. Retighten chains after
driving 0.5 - 1.0 km (1/4 - 1/2 mile).
O Install tire chains following the instructions provided with the tire chains.
WARNING
QDriving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or
serious injury.
O Use tires of the specified size.
O Maintain the recommended level of air pressure.
O Do not drive at speeds in excess of the speed limit or the speed limit spec-
ified for the snow tires being used.
O Use snow tires on all, not just some wheels.
Q Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.
O Do not drive in excess of the speed limit specified for the tire chains being
used, or 50 km/h (30 mph), whichever is lower.
O Avoid driving on bumpy road surfaces or over potholes.
O Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
O Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.
O Do not use LDA (Lane Departure Alert with Yaw Assist Function) system.
(if equipped)

4466-1. Using the air conditioning system and defogger
HILUX_OM_OM0K513E_(EE)
QUsing automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
Q Fogging up of the windows
O The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the wind-
shield effectively.
O If you turn off, the windows may fog up more easily.
O The windows may fog up if the recirculated air mode is used.
Q When driving on dusty roads
Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-
cle after closing the windows, it is recommended that the air intake mode be
set to outside air mode and the fan speed to any setting except off.
Q Outside/recirculated air mode
O Setting to the recirculated air mode temporarily is recommended in prevent-
ing dirty air from entering the vehicle interior and helping to cool the vehicle
when the outside air temperature is high.
O Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
Q Operation of the air conditioning system in Eco drive mode (if equipped)
O In Eco drive mode, the air conditioning system is controlled as follows to pri-
oritize fuel efficiency:
• Engine speed and compressor operation controlled to restrict heating/
cooling capacity
• Fan speed restricted when automatic mode is selected
O To improve air conditioning performance, perform the following operations.
• Adjust the fan speed
• Turn off Eco drive mode
• Adjust the temperature setting
Q When the outside temperature falls to nearly 0°C (32°F)
The dehumidification function may not operate even when is pressed.

471
7Maintenance and care
HILUX_OM_OM0K513E_(EE)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 472
Cleaning and protecting
the vehicle interior ........... 476
7-2. Maintenance
Maintenance
requirements.................... 479
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ...................... 482
Hood .................................. 484
Engine compartment.......... 486
Tires ................................... 507
Tire inflation pressure ........ 510
Wheels ............................... 512
Air conditioning filter .......... 514
Wireless remote control/
electronic key battery....... 516
Checking and
replacing fuses ................ 520
Light bulbs ......................... 525