2020 TOYOTA HILUX warning light

6217-3. 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.

623
8When trouble arises
HILUX_OM_OM0K321E_(EE)
8-1. Essential information
Emergency flashers ........... 624
If your vehicle has to
be stopped in an
emergency ....................... 625
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 627
If you think something is
wrong ............................... 632
Fuel pump shut off
system (gasoline engine
only) ................................. 633
If a warning light turns on
or a warning buzzer
sounds ............................. 634
If a warning message is
displayed ......................... 643
If you have a flat tire .......... 649
If the engine will not
start.................................. 666
If the electronic key does
not operate properly
(vehicles with smart
entry & start system)........ 668
If the vehicle battery is
discharged ....................... 672
If your vehicle
overheats ......................... 678
If you run out of fuel
and the engine stalls
(diesel engine only) ......... 682
If the vehicle becomes
stuck ................................ 683

6348-2. Steps to take in an emergency
HILUX_OM_OM0K321E_(EE)
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.

6358-2. Steps to take in an emergency
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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; 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.
Power steering system warning light (warning buzzer)
(if equipped)
Indicates a malfunction in the power steering system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

6368-2. Steps to take in an emergency
HILUX_OM_OM0K321E_(EE)
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.
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
reduce the vehicle speed or stop the vehicle in a safe
place. ( P. 398)
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.
Warning lightWarning light/Details/Actions

6378-2. Steps to take in an emergency
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When trouble arises
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. 583
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.
DPF system warning light (warning buzzer) (if equipped)
Indicates that the amount of accumulated deposit in the
DPF catalytic converter has reached the specified level if
the light comes on. Regenerating the filter is required.
 Refer to P. 433.
Indicates a malfunction in the DPF system if the light
flashes rapidly.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
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. 257)
 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.
Warning lightWarning light/Details/Actions

6388-2. Steps to take in an emergency
HILUX_OM_OM0K321E_(EE)
(Flashes or illuminates)
PCS warning light (if equipped)
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Col-
lision System).
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily
unavailable, corrective action may be necessary.
 Follow the instructions displayed on the multi-infor-
mation display. ( P. 337, 643)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 349
(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. 360)
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.
(Flashes or illuminates)
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.
Warning lightWarning light/Details/Actions

6398-2. Steps to take in an emergency
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When trouble arises
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. 643
(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. 413)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Parking brake indicator light (warning buzzer)*9
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.
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.
Warning lightWarning light/Details/Actions