2021 TOYOTA HILUX check engine

5668-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
If a war ning light tur ns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light (warning buzzer)
Indicates:
• Low brake fluid
• Malfunction in the brake system
• Low negative pressure in the vacuum tank (diesel
engine)
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer. Continuing to
drive the vehicle may be dangerous.
Charging system warning light*1 (if equipped)
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Low engine oil pressure warning light (warning
buzzer)*1, 2 (if equipped)
Indicates that the engine oil pressure is too low (This
warning light may come on if the vehicle is stopped on a
slope. Move to a level surface and check to see if the light
goes off.)
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.

5708-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
(Yellow)
LDA indicator (warning buzzer) (if equipped)
Indicates a malfunction in the LDA (Lane Departure Alert
with Yaw Assist Function)
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 294)
Open door warning light (warning buzzer)*1, 7 (if
equipped)
Indicates that a door is not fully closed
 Check that all the doors are closed.
(Flashes or illuminates)
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)*8
Warns the driver and front passenger to fasten his/her
seat belt
 Fasten the seat belt.
(Flashes or illuminates)
Rear passengers’ seat belt reminder lights (warning
buzzer)*9 (if equipped)
Warn the rear passengers to fasten their seat belts
 Fasten the seat belt.
Low fuel level warning light
Indicates remaining fuel is approximately 12.0 L (3.2 gal.,
2.6 Imp.gal.) or less
 Refuel the vehicle.
Low engine oil level warning light (if equipped)
Indicates that engine oil level is low (This warning light
may come on if the vehicle is stopped on a slope. Move
the vehicle to a level surface and check to see if the light
goes off.)
 Check the level of engine oil and add more oil if nec-
essary.
(Flashes or illuminates)
Master warning light (warning buzzer) (if equipped)
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 575
(Flashes)
Stop & Start cancel indicator (if equipped)
Indicates a malfunction in the Stop & Start system
(The Stop & Start cancel indicator will come on when the
system is canceled: P. 346)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

5748-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
WARNING
QIf a warning light comes on or a warning buzzer sounds when a warn-
ing message is shown on the multi-information display (vehicles with
multi-information display)
Check and follow the message shown on the multi-information display. Fail-
ure to do so may result in death or serious injury.
Q If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Toyota retailer or Toyota authorized r epairer, or any reliable repairer. The
vehicle will become extremely unstable during braking, and the ABS system
may fail, which could cause an accident resulting in death or serious injury.
NOTICE
Q If the malfunction indicator lamp comes on when the boost pressure in
the turbocharger is abnormally high (diesel engine)
Never drive at high speed or race the engine even after the lamp goes off.
Q If the fuel system warning light flashes (diesel engine)
Never drive the vehicle with the warn ing light flashing. Continued driving
with water accumulated in the fuel filter will damage the fuel injection pump.

5778-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
8
When trouble arises
QWarning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
Q If a message about an operation is shown
O 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.
O 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.
O 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.
Q 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.
Q If “Accelerator and Brake Pedals Pressed Simultaneously” is shown
The accelerator and brake pedal are being depressed simultaneously.
( P. 195)
Release the accelerator pedal and depress the brake pedal.
Q 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
HILUX_OM_OM0K513E_(EE)
Q 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.
Q 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.
Q 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. 331)
Q 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)
Q 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.
Q If “DPF full Manual regeneration required See owner’s manual” is shown
The deposit collected in the filter needs to be regenerated. ( P. 371)
Q If “DPF regeneration in progress” is shown
Regeneration is being automatically carried out by the DPF system.
( P. 370)

5808-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
Q 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. 271)
Q 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.
Q 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.
Q Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location
or audio sound.
WARNING
Q 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
Q While the engine oil level warning is shown
Continued engine operation with lo w engine oil will damage the engine.
Q 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
HILUX_OM_OM0K513E_(EE)
8
When trouble arises
WARNING
QUsing 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.
O Do not use the tire jack for any purpose other than replacing tires or install-
ing and removing tire chains.
O 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.
O Make sure the tire jack can be moved properly.
O Always check that the tire jack is securely set to the correct jack up point.
O Do not put any part of your body under the vehicle while it is supported by
the jack.
O Do not start or run the engine while your vehicle is supported by the jack.
O Do not raise the vehicle while someone is inside.
O When raising the vehicle, do not put an object on or under the jack.
O Do not raise the vehicle to a height greater than that required to replace
the tire.
O 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.
Q Using the jack handle
Insert the square head securely until you hear a click to prevent the exten-
sion parts from coming apart unexpectedly.
O Do not continue jacking up once the yel-
low caution line has appeared.Ye l l o w
caution line

6038-2. Steps to take in an emergency
HILUX_OM_OM0K513E_(EE)
8
When trouble arises
QStopping 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.
Q 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)
Q Alarm (vehicles with alarm for models for model code destination W*,
and Kazakhstan)
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)
Q 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. 226)
Q When the electronic key does not work properly
O 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. 646)
O Check if battery-saving mode is set. If it is set, cancel the function.
( P. 164)
3