2023 TOYOTA HILUX engine

3654-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
■ System malfunction
In the following cases, have your vehicle checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
● 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).
● The downhill assist control system indicator does not come on when the
“DAC” switch is pressed.
● The slip indicator comes on.
WARNING
■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.
● 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.
● 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.
■ The system may not operate on the following surfaces, which may lead
to an accident causing death or serious injury
● Slippery surfaces such as wet or muddy roads
● Icy surface
● Unpaved roads

3664-5. Using the driving support systems
HILUX_OM_OM0K789E_(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

3674-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
■If the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
■ 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.
■ 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
■ To avoid an accident
Failure to do so, a much greater steer ing effort and more careful cornering
control will be required.
● 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.
● Do not drive with the AUTO LSD system continuously turned on.
NOTICE
■Activating while driving
Do not activate the AUTO LSD system if the wheel is slipping. Stop the slip-
ping or spinning before activating.

3684-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
DPF (Diesel Particulate Filter) system
: If equipped
When the deposit collected by the filter reaches a predetermined
amount, it is automatically regenerated.
WARNING
■ During regeneration
Observe the following precautions.
Failure to do so may result in serious injury such as burns caused by the hot
exhaust pipe and exhaust gases, or may cause a fire.
● Do not carry out regeneration when the vehicle is in an enclosed area,
such as a garage.
● Do not touch the exhaust pipe and exhaust gases during regeneration.
NOTICE
■To prevent the DPF system from failing
● Do not drive for long periods of time while the DPF system warning mes- sage “DPF full Visit your dealer” appears on the multi-information displayand a buzzer sounds (malfunction indicator lamp comes on)
● Do not use fuel other than the specified type
● Do not use engine oil other than the recommended type
● Do not modify the exhaust pipe
●Do not stop the vehicle where flamma-
ble materials, such as dry grass, are
near the exhaust pipe.
● Make sure that there are no people
near the exhaust pipe.

3704-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
●If the DPF system warning message “DPF full See owner’s manual”
appears on the multi-information display, follow the procedure
below to regenerate.
When regenerating the filter during driving the vehicle
To regenerate the filter, the following driving methods are recom-
mended.*1
• By driving continuously (for example, at around 60 km/h [37 mph]
for 20 to 30 minutes).
• By avoiding short trips, or by driving continuously (leaving the
engine running for long periods of time).
Check the engine is warmed up before driving the vehicle to regenerate
the filter. If the engine is cold, warm up the engine by driving the vehicle
downshifting to increase the engine speed.*2
The warning message will disappear on the multi-information display when
regeneration is complete. However, depending on the driving condition
such as heavy traffic, the amount of accumulated deposit increases and
the warning message may not disappear on the multi-information display.
If the warning message does not disappear on the multi-information dis-
play after driving, press the DPF system switch to manually regenerate the
filter.
Regeneration during driving cannot be performed when the vehicle is
higher than 4000 m (13124 ft.) above sea level.
*1: When driving, pay sufficient attention to weather, road conditions, ter-
rain and traffic conditions, and drive according to traffic laws.
*2: Depending on the situation, it may be necessary to downshift until the
engine speed is increased to 3000 rpm. If the engine coolant tempera-
ture or exhaust gas temperature is low, it may take a long time to
regenerate, or regeneration may be impossible.
DPF system failure warning

3714-5. Using the driving support systems
4
Driving
HILUX_OM_OM0K789E_(EE)
When regenerating the filter by pressing the DPF system switch
Stop the vehicle in a safe place.
Shift the shift lever to P (automatic transmission) or N (manual
transmission), and firmly set the parking brake.
Do not stop the engine.
Also, make sure that there are no flammable materials near the exhaust
pipe. ( P. 368)
Check the engine is warmed up. If the engine is cold, warm up the engine
by depressing the accelerator pedal.*1
Press the DPF system switch.
The DPF system warning message
shown in the illustration appears
on the multi-information display,
and the idling engine speed will
increase.
Regeneration will take around 15 -
40 minutes to complete.*2
When the DPF system warning message disappears on the multi-
information display, the idling engine speed will have finished return-
ing to normal.
The DPF system switch may not operate when the vehicle is higher
than 4000 m (13123 ft.) above sea level.
*1: Depending on the situation, it may be necessary to depress the acceler-
ator pedal until the engine speed is increased to 3000 rpm. If the engine
coolant temperature or exhaust gas temperature is low, it may take a
long time to regenerate, or regeneration may be impossible.
*2: Time required for regeneration differs in accordance with the outside
temperature. Also, if the engine speed is still approximately 2000 rpm
10 minutes after pressing the DPF system switch, the exhaust gas tem-
perature may be low. In this case, depress the accelerator pedal to run
the engine at approximately 3000 rpm for a while.
When depressing the accelerator pedal, regeneration will be stopped. In
this case, restart regeneration.
1
2
3

3724-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
●If the “DPF full Manual regeneration required See owner’s manual”
appears on the multi-information display, press the DPF system
switch to regenerate the filter. ( P. 370)
● If the DPF system warning message “DPF full Visit your dealer”
appears on the multi-information display and a buzzer sounds (mal-
function indicator lamp comes on), have the vehicle inspected by
any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer immediately.
■ Regeneration with the DPF system switch
● After pressing the DPF system switch, depressing the accelerator pedal or
clutch pedal (manual transmission) will stop regeneration. If regeneration
has been stopped, restart regeneration as soon as possible.
● After regeneration is finished, race the engine several time to clean the
exhaust system.
■ DPF system warning
Under the following driving conditions, the DPF system warning message
may be displayed on the multi-information display earlier than normal.*
● When only driving at low speeds (for example 20 km/h [12 mph] or below).
● If the engine is turned on and off frequently (if the engine is not left running
for more than 10 minutes at a time).
*: Differs in accordance with weather, driving conditions, etc.
NOTICE
■ If the malfunction indicator lamp comes on (warning buzzer)
The malfunction indicator lamp comes on if you continue driving while the
DPF system warning message appears on the multi-information display. In
this event, damage may be caused to the vehicle or an accident may occur.
Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.

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4-6. Driving tips
Driving
HILUX_OM_OM0K789E_(EE)
Winter driving tips
●Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the condition of the battery.
● 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:
● 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.
● 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.
● 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.
● 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