warning light TOYOTA HILUX 2017 (in English) Workshop Manual

5827-3. Do-it-yourself maintenance
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■After a fuse is replaced
● If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( P. 583)
● If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.

5977-3. Do-it-yourself maintenance
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Maintenance and care
WARNING
■Replacing light bulbs
● Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ To prevent damage or fire
● Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.

599
8When trouble arises
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8-1. Essential information
Emergency flashers ........... 600
If your vehicle has to
be stopped in an
emergency ....................... 601
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 603
If you think something is
wrong ............................... 608
Fuel pump shut off
system (gasoline engine
only) ................................. 609
If a warning light turns on
or a warning buzzer
sounds ............................. 610
If a warning message is
displayed ......................... 618
If you have a flat tire .......... 625
If the engine will not
start.................................. 642
If the electronic key does
not operate properly
(vehicles with smart
entry & start system)........ 644
If the vehicle battery is
discharged ....................... 648
If your vehicle
overheats ......................... 654
If you run out of fuel
and the engine stalls
(diesel engine only) ......... 657
If the vehicle becomes
stuck ................................ 658

6108-2. Steps to take in an emergency
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If a warning light turns 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 (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)
(if equipped) *1
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.

6118-2. Steps to take in an emergency
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8
When trouble arises
Malfunction indicator lamp (warning buzzer)
Indicates the followings if the warning light comes on or
flashes:
• Malfunction in the emission control system. (if equipped)
• Malfunction in the electronic engine control system.
• Malfunction in the electronic automatic transmission
control system. (if equipped)
• The boost pressure in the turbocharger is abnormally
high.*2 (diesel engine)
• Malfunction in DPF system. (if equipped)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The seat belt pretensioner system (if equipped) or
• The front passenger occupant classification system (if
equipped);
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system (vehicles with VSC system)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Slip indicator (if equipped)
Indicates a malfunction in:
• The VSC system (if equipped);
• Trailer sway control system (if equipped);
• The TRC/A-TRC system (if equipped);
• The hill-start assist control system (if equipped); or
• The downhill assist control system (if equipped)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
The light will flash when any of the above systems other
than the hill-start assist control system are operating.
Warning lightWarning light/Details/Actions

6128-2. Steps to take in an emergency
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Four-wheel drive indicator light (warning buzzer)*3 (if
equipped)
Indicates that the differential oil temperature is too high
when the light flashes rapidly and a buzzer sounds.
 Turn the front-wheel drive control switch to H2, and
wait until the warning light goes off.
Indicates a malfunction in the four-wheel drive system
when the light flashes rapidly and a buzzer does not
sound.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Low speed four-wheel drive indicator light (if equipped)
Indicates a malfunction in the four-wheel drive system
when the light flashes rapidly.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Rear differential lock indicator light (if equipped)
Indicates a malfunction in the rear differential lock system
when the light flashes rapidly.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Timing belt replacement warning light (if equipped)
Indicates that the timing belt should be replaced
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
Fuel system warning light (warning buzzer)*4 (if
equipped)
The amount of accumulated water in the fuel filter has
reached the specified level if the light flashes.
 P. 560
The fuel filter need to be replaced if the light comes on.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

6138-2. Steps to take in an emergency
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8
When trouble arises
Brake Override System warning light (if equipped)
Indicates that the accelerator and brake pedal are being
depressed simultaneously if the warning light comes on
( P. 241)
 Release the accelerator pedal and depress the brake
pedal.
Indicates a malfunction in the Brake Override System if
the warning light flashes
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
(Flashes or illuminates)
PCS warning light (if equipped)
Indicates a malfunction in the PCS (Pre-Collision System)
or that the system is temporarily unavailable due to the
vehicle being extremely hot/c old, or dirt around a front
sensor, etc.
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 333, 618)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 333
LDA indicator (warning buzzer) (if equipped on vehicles
with multi-information display type B)
Indicates that the LDA (Lane Departure Alert) system is
not available temporarily or has detected a malfunction
when the warning light is illuminated in yellow and a warn-
ing message is displayed on the multi-information display.
 P. 341
Warning lightWarning light/Details/Actions

6148-2. Steps to take in an emergency
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Open door warning light (warning buzzer)*5 (if
equipped)
Indicates that a door is not fully closed
 Check that all the doors are closed.
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)*6
Warns the driver and front passenger to fasten his/her
seat belt
 Fasten the seat belt.
(On the center panel)
Rear passengers’ seat belt reminder lights (warning
buzzer)*7 (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.
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. 618
Warning lightWarning light/Details/Actions

6158-2. Steps to take in an emergency
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8
When trouble arises
*1: The buzzer sounds if the vehicle reaches a speed of 5 km/h (3 mph).
*2: Slow down until the lamp goes off.
*3: The buzzer sounds when the differential oil temperature is too high and
turning the front-wheel drive control switch to H2 is required.
*4: The buzzer will sound at the same time the warning light flashes.
*5: The open door warning buzzer sounds if the vehicle reaches or exceeds a
speed of 5 km/h (3 mph).
*6: The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds intermittently for 30 seconds after the vehicle reaches a
speed of 20 km/h (12 mph). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
*7: The rear passengers’ seat belt buzze r sounds to alert the rear passenger
that his or her seat belt is not fastened. The buzzer sounds intermittently
for 30 seconds after the vehicle reaches a speed of 20 km/h (12 mph).
Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 90 more seconds.
*8: The parking brake engaged warning buzzer sounds if the vehicle reaches a
speed of approximately 5 km/h (3 mph) or more.
(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. 378)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Parking brake indicator light (warning buzzer)*8
Warns the driver to release parking brake.
 Release the parking brake.
Low AdBlue™ level warning light (if equipped)
Indicates that AdBlue™ level is low
 Have AdBlue™ refilled at any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
Warning lightWarning light/Details/Actions

6168-2. Steps to take in an emergency
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Carrying out the corresponding action turns the warning light off.
■Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on a front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator lamp comes on while driving
For some models, malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer as soon
as possible.
Other warning light
Warning lightWarning light/Details/Actions
Go to service warning light (warning buzzer) (if
equipped)
Indicates a malfunction in the electronic engine control
system or electronic throttle control system, or the Brake
Override System.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.