2023 TOYOTA HILUX engine

4997-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
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Maintenance and care
You may drain the fuel filter yourself. However, as the operation is dif-
ficult, we recommend having it drained by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer. Even if
you decide to drain it yourself, contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
The water in the fuel filter needs to be drained if one of the following
symptoms occurs:
Vehicles without multi-information display
When the fuel system warning light flashes and a buzzer sounds.
( P. 569)
Vehicles with multi-information display
When “Water accumulation in fuel filter See owner’s manual” is
shown on the multi-information display and a buzzer sounds*1.
Vehicles without smart entry & start system: Turn the engine switch
to the “LOCK” position.
Vehicles with smart entry & start system: Turn the engine switch off.
Place a small tray under the drain plug or drain hose to catch the
water and any fuel that comes out.
Perform the draining as shown in the illustration.
Turn the drain plug counter-
clockwise about 2 to 2 1/2
turns.
Loosening more than this will
cause water oozing from around
the drain plug.
Operate the priming pump
until fuel begins to run out.
After draining, tighten the drain plug by hand.
*1: Models for model code destination Blank*2
*2: See “Checking your vehicle’s model” if you are not sure of which model
your vehicle is. ( P. 1 2 )
Fuel filter (diesel engine only)
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5007-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
AdBlue™ is used to reduce the amount of nitrogen oxides in exhaust
gas. Make sure to observe the following precautions regarding
AdBlue™.
● AdBlue™ is consumed in the process of driving.
● When AdBlue™ is depleted, the engine cannot be restarted.
● When AdBlue™ needs to be refilled, have it refilled at any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
It may be a criminal offence to use a vehicle that does not consume
any reagent if it is required for the reduction of emissions.
■Possible driving range
The amount of AdBlue™ that is consumed while driving differs
according to the driving conditions and driving environment. When
the amount of AdBlue™ that is consumed increases, the possible
driving range until it is necessary to refill AdBlue™ decreases.
*1: When the vehicle is used at high elevations and in low temperatures, the
amount of AdBlue™ that is consumed increases.
*2: During normal driving, 1.0 L (1.1 qt., 0.9 Imp.qt.) of AdBlue™ is con-
sumed approximately every 600 km (373 miles). Also, after a full refill, the
vehicle can be driven for approximately 10000 km (6214 miles) before all
AdBlue™ is depleted.
AdBlue™ (if equipped)
Possible driving range
Short*1Long
[High-load driving][Normal driving]*2[Low-load driving]
• When your vehicle is
towing a trailer (with
towing hitch)
• When firmly depress-
ing the accelerator
pedal
• When driving on long
uphill slopes
• When the DPF sys-
tem is operating
• When driving short
distances
• When in traffic con-
gestion

5027-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
■Warning message
If the following warning message is displayed on the multi-information dis-
play, follow the appropriate troubleshooting procedure.
*1: Use the driving range as a reference. The possible driving range that is dis-
played may differ from the actual driving range depending on the refill
method, driving conditions and driving environment. ( P. 5 0 0 )
*2: The master warning light turns on and the buzzer sounds in accordance
with the warning message.
■ AdBlue™ gauge
The quantity of AdBlue™ remaining in the tank is displayed on the multi-infor-
mation display. ( P. 1 3 5 )
Warning messageDetails/Actions
“AdBlue Level Low Fill up
AdBlue in 2400 km See
Owner’s Manual”*1
When AdBlue™ needs to be refilled
 Have AdBlue™ refilled to the full at
any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer.
“AdBlue level Low No start in
800 km Top up AdBlue See
Owner’s Manual”*1, 2
When AdBlue™ needs to be refilled
If the displayed driving distance is
exceeded, the engine cannot be
restarted.
 Have AdBlue™ refilled to the full at
any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer immediately.
“AdBlue empty Unable to
Restart Engine Fill up AdBlue
See Owner’s Manual”*2
When AdBlue™ needs to be refilled
 If the engine is stopped, it cannot be
restarted.
Without stopping the engine, contact
any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer immediately and
have AdBlue™ refilled to the full.
NOTICE
■ When the AdBlue™ level is low
When AdBlue™ is depleted, the engine cannot be restarted.
Be sure to have AdBlue™ refilled to the full at any authorized Toyota retailer
or Toyota authorized repairer, or any re liable repairer before it is completely
depleted.

5037-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
7
Maintenance and care
■Refilling AdBlue™ by yourself in an emergency
When the engine cannot be restarted due to the depletion of
AdBlue™, adding approximately 11.0 L (11.6 qt., 9.7 Imp.qt.) or
more of AdBlue™ will allow the engine to be started again. Perform
the following procedures to refill AdBlue™. (The AdBlue™ tank has
a capacity of 17.0 L [18.0 qt., 15.0 Imp.qt.].)
Refilling with the refilling equipment
Park the vehicle on a level surface, turn the engine switch off,
and then open the hood. ( P. 484)
Open the AdBlue™ tank cap.
Insert the nozzle and refill
AdBlue™.
Refill AdBlue™ slowly so that it
does not spill.
Close the AdBlue™ tank cap.
Turn the cap until you hear a
click.
Check that the engine starts.
Have AdBlue™ refilled to the full at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
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5047-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
Refilling with the bottle
Park the vehicle on a level surface, turn the engine switch off,
and then open the hood. ( P. 484)
Open the AdBlue™ tank cap.
Insert a bottle of AdBlue™
and fully tighten it.
Push down on the bottle.
AdBlue™ will begin to be
refilled. Refill AdBlue™ slowly
so that it does not spill. Do not
remove the bottle until it is
empty.
Check that no AdBlue™
remains in the bottle, and
then remove it.
Repeat steps 3 to 5 until approx-
imately 11.0 L (11.6 qt., 9.7
Imp.qt.) or more of AdBlue™
have been refilled.
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5057-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
7
Maintenance and care
Close the AdBlue™ tank cap.
Turn the cap until you hear a
click.
Check that the engine starts.
The way of refilling may differ from those shown in the illustration.
Have AdBlue™ refilled to the full at any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
■ Refilling AdBlue™
● Use AdBlue™ (compliant with ISO 22241-1).
AdBlue™ is a trademark of the German Association of the Automotive
Industry (VDA).
● Before driving for a long period of time in an area where AdBlue™ cannot
be refilled, consult any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■ When refilling AdBlue™
After refilling AdBlue™, the engine may take a few seconds longer than nor-
mal to start.
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5067-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
NOTICE
■When refilling AdBlue™
Observe the following precautions.
Failure to do so may result in damage to the vehicle parts, paint, etc.
● Do not use urea solution other than AdBlue™.
● If AdBlue™ comes into contact with any painted surfaces on the vehicle,
immediately wash the affected areas with water.
● If AdBlue™ is spilled inside the engine compartment, immediately wipe it
with a wet cloth.
■ When refilling AdBlue™ with the refilling equipment
Observe the following precautions to prevent AdBlue™ overflowing from the
AdBlue™ tank:
● Securely insert the nozzle into the AdBlue™ filler neck.
● Stop filling the tank after the nozzle automatically clicks off.
● Do not top off the AdBlue™ tank.
■ When storing AdBlue™ containers
Observe the following precautions.
Failure to do so may result in damage to vehicle parts, paint, etc., and
changes in the chemical compounds of AdBlue™ may cause unpleasant
odors.
● Do not leave AdBlue™ containers inside the vehicle.
● Tightly seal AdBlue™ containers and store them in a cool, dry location
with good ventilation and no exposure to direct sunlight.

5147-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
Air conditioning filter
Vehicles without smart entry & start system: Turn the engine switch
to the “LOCK” position.
Vehicles with smart entry & start system: Turn the engine switch off.
Open the glove box. Turn the
claws as shown in the illustra-
tion.
Pull out the claws.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
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