2023 TOYOTA HILUX Owners Manual

4957-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
7
Maintenance and care
If there are not lines on the side of the battery:
Check the fluid level as follows.
Remove the vent plug.
Check the fluid level by look-
ing directly at the cell.
If the fluid level is low, add dis-
tilled water.
Put the vent plug back on and close it securely.
■Adding distilled water (vehicles with maintenance type bat-
tery)
Remove the vent plug.
Add distilled water.
Put the vent plug back on and close it securely.
■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
● If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
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Low O.K.2
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4967-3. Do-it-yourself maintenance
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■ After recharging/reconnecting the battery (vehicles with smart entry &
start system)
Vehicles with automatic transmission
● Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
Vehicles with manual transmission
The engine may not start. Follow the procedure below to initialize the system.
Depress the brake pedal with the shift lever in N.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the engine will
operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■ If a symbol of a battery is shown on the multi-information display
There is a malfunction in the vehicle’s charging system.
Immediately stop the vehicle in a safe place and contact any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer. Continu-
ing to drive the vehicle may be dangerous.
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4977-3. Do-it-yourself maintenance
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7
Maintenance and care
WARNING
■Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
■ Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room w here there is insufficient ventilation.
■ How to recharge the battery (vehicles with maintenance-free type bat-
tery)
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
● When there is insufficient battery fluid
Do not use if there is insufficient fluid in the battery. There is a possible
danger that the battery may explode.
■ When disconnecting the battery
Do not disconnect the negative (-) terminal on the body. The disconnected
negative (-) terminal may touch the positive (+) terminal, which may cause a
short and result in death or serious injury.

4987-3. Do-it-yourself maintenance
HILUX_OM_OM0K789E_(EE)
Add washer fluid in the following
situations:
● A washer does not work.
● The warning message appears
on the multi-information display
(if equipped).
NOTICE
■ When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
■ When adding distilled water (vehicles with maintenance type battery)
Avoid overfilling. Water spilled duri ng battery recharging may cause corro-
sion.
Washer fluid
WARNING
■ When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid
contains alcohol and may catch fi re if spilled on the engine etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces as well as
damaging the pump leading to problems of the washer fluid not spraying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures list ed on the label of the washer fluid bot-
tle.

4997-3. Do-it-yourself maintenance
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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

5017-3. Do-it-yourself maintenance
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7
Maintenance and care
■AdBlue™ warning light and warning message
When the AdBlue™ level is low,
the low AdBlue™ level warning
light turns on and a warning
message appears on the multi-
information display. ( P. 502)
When the possible driving range
based on the remaining amount
of AdBlue™ reaches approxi-
mately 2400 km (1492 miles),
the low AdBlue™ level warning
light turns on and a warning
message is displayed.
When refilling AdBlue™ by yourself in an emergency, be sure to follow
the correct refilling procedures. ( P. 503)

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.