check engine TOYOTA HILUX 2023 Workshop Manual

5778-2. Steps to take in an emergency
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When trouble arises
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ If a message about an operation is shown
● If a message about an operation of the engine switch is shown
An instruction for operation of the engine switch is shown when the incor-
rect procedure for starting the engine is performed or the engine switch is
operated incorrectly. Follow the instructions shown on the multi-information
display to operate the engine switch again.
● If a message about a shift lever operation is shown
To prevent the shift lever from being operated incorrectly or the vehicle from
moving unexpectedly, a message that requires shifting the shift lever may
be shown on the multi-information display. In that case, follow the instruc-
tion of the message and shift the shift lever.
● If a message or image about an open/close state of a part or replenishment
of a consumable is shown
Confirm the part indicated by the multi-information display or a warning
light, and then perform the coping method such as closing the open door or
replenishing a consumable.
■ If is shown
The engine oil pressure is too low. (This warning message may be displayed
if the vehicle is stopped on a slope. Move the vehicle to a level surface and
check to see if the message goes off.)
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.
■ If “Accelerator and Brake Pedals Pressed Simultaneously” is shown
The accelerator and brake pedal are being depressed simultaneously.
( P. 193)
Release the accelerator pedal and depress the brake pedal.
■ If “Windshield washer fluid low” is shown
The washer fluid level is low.
Add washer fluid. ( P. 4 9 8 )

5788-2. Steps to take in an emergency
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■ If “Oil maintenance required soon” is shown
The engine oil is scheduled to be changed.
Check the engine oil, and change if necessary. After changing the engine oil,
the oil change system should be reset. ( P. 491)
For Russia, Armenia, Ukraine, Byelarus, Moldova, Bosnia Herzegovina, Mon-
tenegro, Serbia and Macedonia: You have forgotten to reset the oil change
system. Change the engine oil in accordance with the maintenance schedule.
■ If “Oil maintenance required” is shown
The engine oil is scheduled to be changed.
Check and change the engine oil, and oil filter by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer. After changing
the engine oil, the oil change system should be reset. ( P. 491)
For Russia, Armenia, Ukraine, Byelarus, Moldova, Bosnia Herzegovina, Mon-
tenegro, Serbia and Macedonia: You have forgotten to reset the oil change
system. Change the engine oil in accordance with the maintenance schedule.
■ If “Differential oil temp high Shift to 2WD mode Cooling time required” or
“Differential oil temp high Co oling time required” is shown
The differential oil temperature is too high.
Turn the front-wheel drive control switch to H2, and reduce the vehicle speed
or stop the vehicle in a safe place. ( P. 330)
■ If “Engine oil level low Add or replace” is shown
The engine oil level is low. (This warning message may be displayed if the
vehicle is stopped on a slope. Move the vehicle to a level surface and check
to see if the message goes off.)
Check the level of the engine oil and add or replace oil if necessary.
( P. 479)
■ If “Power turned off to save battery” is shown
Power was turned off due to the automatic power off function.
Next time when starting the engine, increase the engine speed slightly and
maintain that level for approximately 5 minutes to recharge the battery.
■ If “DPF full Manual regeneration required See owner’s manual” is shown
The deposit collected in the filter needs to be regenerated. ( P. 370)
■ If “DPF regeneration in progress” is shown
Regeneration is being automatically carried out by the DPF system.
( P. 369)

5808-2. Steps to take in an emergency
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■ If “Radar Cruise Control Temporarily Unavailable See Owner’s Manual”
is shown
The dynamic radar cruise control system is suspended temporarily or until the
problem shown in the message is resolved. (causes and coping methods:
 P. 270)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control system cannot be used temporarily. Use the
system when it becomes available again.
■ If “Visit your dealer” is shown
The system or part shown on the multi- information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer immediately.
■ Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location
or audio sound.
WARNING
■ If a warning light comes on or a warning buzzer sounds when a warn-
ing message is shown
Check and follow the message shown on the multi-information display. Fail-
ure to do so may result in death or serious injury.
NOTICE
■ While the engine oil level warning is shown
Continued engine operation with lo w engine oil will damage the engine.
■ If “Water accumulation in fuel filter See owner’s manual” is shown
Never drive the vehicle if the warning message is displayed. Continued driv-
ing with water accumulated in the fuel filter will damage the fuel injection
pump.

5838-2. Steps to take in an emergency
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When trouble arises
WARNING
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off the
jack, leading to death or serious injury.
● Do not use the tire jack for any purpose other than replacing tires or install-
ing and removing tire chains.
● Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replac-
ing tires on this vehicle.
● Make sure the tire jack can be moved properly.
● Always check that the tire jack is securely set to the correct jack up point.
● Do not put any part of your body under the vehicle while it is supported by
the jack.
● Do not start or run the engine while your vehicle is supported by the jack.
● Do not raise the vehicle while someone is inside.
● When raising the vehicle, do not put an object on or under the jack.
● Do not raise the vehicle to a height greater than that required to replace
the tire.
● Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one work-
ing on or near the vehicle may be injured.
■ Using the jack handle
Insert the square head securely until you hear a click to prevent the exten-
sion parts from coming apart unexpectedly.
● Vehicles with round rear axle housing:
Do not continue jacking up once the yel-
low caution line has appeared.
● Vehicles with square rear axle housing:
Do not continue jacking up once the fol-
lowing caution line has appeared.
Front
Red caution line
Rear
Yellow caution line
Ye l l o w
caution line
Yellow caution
line for rear
Red caution
line for front

6038-2. Steps to take in an emergency
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When trouble arises
■Stopping the engine
Shift the shift lever to P (automatic transmission) or N (manual transmission)
and press the engine switch as you normally do when stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 516)
■ Alarm (vehicles with alarm for models for model code destination Blank
[for Kazakhstan, Kyrgyzstan and Russia] and W*)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key and is opened when the alarm
system is set, the alarm may be triggered.
*: See “Checking your vehicle’s model” if you are not sure of which model
your vehicle is. ( P. 12)
■ Changing engine switch modes
Release the brake pedal (automatic transmission) or clutch pedal (manual
transmission) and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 225)
■ When the electronic key does not work properly
● Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: P. 647)
● Check if battery-saving mode is set. If it is set, cancel the function.
( P. 162)
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6138-2. Steps to take in an emergency
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When trouble arises
Start the engine to check that the radiator cooling fan operates and
to check for coolant leaks from the radiator or hoses.
If the fan is not operating:
Stop the engine immediately and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
WARNING
■ When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the radiator cap (if equipped), the engine coolant reservoir
cap or intercooler coolant reservoir cap (if equipped) while the engine and
radiator are hot. High temperature steam or coolant could spray out.
NOTICE
■ When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additive.
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6289-1. Specifications
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Gasoline engine
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-20 and 5W-30:
API grade SM “Energy-Conserving”, SN “Resource-Conserving”,
SN PLUS “Resource-Conserving” or SP “Resource-Conserving”; or
ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 oil is not avail-
able, SAE 5W-30 oil may be
used. However, it should be
replaced with SAE 0W-20 at the
next oil change.
Lubrication system
Oil capacity
(Drain and refill  reference*)
With filter
Without filter
5.6 L (5.9 qt., 4.9 Imp.qt.)
5.3 L (5.6 qt., 4.7 Imp.qt.)
Temperature range anticipated before next oil change
Preferred

6309-1. Specifications
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Diesel engine (except for EURO V and VI models*1)
*1: EURO V and VI are emission standards. If it is not clear that your vehicle
meets relevant standards, contact any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
*2: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat-
isfy the following grade and viscosity.
Oil grade: API CF-4, CF or ACEA B3, B4, B5 or JASO DL-0
Recommended viscosity (SAE):
SAE 5W-30 is the best choice
for good fuel economy and
good starting in cold weather.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become difficult
to start, so SAE 5W-30 engine
oil is recommended.
Oil capacity
(Drain and refill — reference*2)
With filter
Without filter
7.5 L (7.9 qt., 6.6 Imp.qt.)
7.0 L (7.4 qt., 6.2 Imp.qt.)
Temperature range anticipated
before next oil change
Preferred

6329-1. Specifications
HILUX_OM_OM0K789E_(EE)
Diesel engine (for EURO V and VI models*1)
*1: EURO V and VI are emission standards. If it is not clear that your vehicle
meets relevant standards, contact any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
*2: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-20: ACEA C5
0W-30 and 5W-30: ACEA C2 or JASO DL-1
Oil capacity
(Drain and refill reference*2)
With filter
Without filter
7.5 L (7.9 qt., 6.6 Imp.qt.)
7.0 L (7.4 qt., 6.2 Imp.qt.)
NOTICE
Using engine oil other than ACEA C5, C2 or JASO DL-1 may damage the cat-
alytic converter.

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9-1. Specifications
Vehicle specifications
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■Use of ethanol blended gasoline in a gasoline engine
Toyota allows the use of ethanol blended gasoline where the ethanol content
is up to 10%. Make sure that the ethanol blended gasoline to be used has a
Research Octane Number that follows the above.
■ If you plan to drive in foreign countries (vehicles with DPF system)
Low sulfur diesel fuel may not be avai lable, so please check the availability
with your distributor.
■ If your engine knocks
● Consult any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
● You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
NOTICE
■ Notice on gasoline fuel quality
● Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use gasoline with metallic additives, for example manganese, iron
or lead, otherwise it may cause damage on your engine or emission con-
trol system.
● Do not add aftermarket fuel additives which contain metallic additives.
● Do not use the methanol blended gasoline such as M15, M85, M100. The
use of gasoline containing methanol may cause engine damage or failure.
● Bioethanol fuel sold under names such as “E50” or “E85” and fuel contain-
ing a large amount of ethanol should not be used. Your vehicle can use
gasoline mixed with 10% max ethanol. The use of fuel with more than 10%
ethanol content (E10) will damage the vehicle’s fuel system. You must
ensure that refueling is carried out only from a source where fuel specifica-
tion and quality can be guaranteed. In case of any doubt, ask any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.