Toyota Hilux (2017 year). Manual - part 89

363

4-5. Using the driving support systems

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System malfunction

●

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.

In the above cases, have your vehicle checked by any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.

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 control-
ling 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

364

4-5. Using the driving support systems

DPF (Diesel Particulate Filter) system

∗

◆

Regeneration

Regeneration is performed as necessary in accordance with driving
conditions.

◆

System characteristics

The DPF system has the following characteristics:
● Idle speed increases during regeneration
● The smell of the exhaust gas differs from that of a conventional

diesel vehicle

● White smoke may be emitted from the exhaust pipe during

regeneration. However, this does not indicate a malfunction.

X

Vehicles without DPF system switch

● If the DPF system warning message “DPF FULL SEE OWNER’S

MANUAL”/“DPF full See owner’s manual” appears on the display,
drive continuously. (

→P. 581) 

● If the DPF system warning message “DPF FULL VISIT YOUR

DEALER”/“DPF full Visit your dealer” appears on the display and
the malfunction indicator lamp comes on, have the vehicle
inspected by any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional immediately.

∗

: If equipped

When the deposit collected by the filter reaches a predetermined
amount, it is automatically regenerated.

DPF system failure warning

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4-5. Using the driving support systems

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Vehicles with DPF system switch

● If the DPF system warning message “DPF FULL MANUAL

REGENERATION REQUIRED SEE OWNER’S MANUAL”/“DPF full
Manual regeneration required See owner’s manual” appears on the
display, follow the procedure below to regenerate.
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. 366)

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 display, and the idling
engine speed will increase.

Regeneration will take around 30 - 40 minutes to complete.

*

2

When the DPF system warning message goes out, the idling engine
speed will have finished returning 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 accelera-

tor 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 tem-

perature. Also, if the engine speed is still approximately 2000 rpm 10 min-
utes after pressing the DPF system switch, the exhaust gas temperature
may be low. In this case, depress the accelerator pedal to run the engine
at approximately 3000 rpm for a while.

1

2

3

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4-5. Using the driving support systems

● If the DPF system warning message “DPF FULL VISIT YOUR

DEALER”/“DPF full Visit your dealer” appears on the display and
the malfunction indicator lamp comes on, have the vehicle
inspected by any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional immediately.

■

Regeneration with the DPF system switch (if equipped)

●

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 come on 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.

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 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.