2023 TOYOTA HILUX engine overheat

2274-2. Driving procedures
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Driving
HILUX_OM_OM0K789E_(EE)
■ Steering lock (vehicles with manual transmission)
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released (vehicles with manual trans-
mission)
■ Steering lock motor overheating prevention (vehicles with manual trans-
mission)
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from running the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■ If “Smart Entry & Start System malfunction See owner’s manual” is
shown on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer
immediately.
■ If the electronic key battery is depleted
 P. 516
■ If the smart entry & start system has been deactivated in a customized
setting
 P. 600
A message will be displayed on the multi-
information display.
Press the engine switch while turning the
steering wheel left and right.

3644-5. Using the driving support systems
HILUX_OM_OM0K789E_(EE)
■Operating tips (vehicles with automatic transmission)
The system will operate when the shift lever is in a position other than P, how-
ever to make effective use of the system it is recommended to select a lower
shift range.
■ The system will not operate when
● The transfer mode is in H2.
● The rear differential is locked. (if equipped)
■ If the downhill assist control system indicator flashes
● In the following situations, the indicator flashes and the system will not oper-
ate:
• The transfer mode is not in L4 or H4.
• The rear differential is locked. (if equipped)
• The shift lever is in P. (vehicles with automatic transmission)
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 30 km/h (18 mph).
• The brake system overheats.
● In the following situations, the indicator flashes to alert the driver, but the
system will operate:
• The shift lever is in N. (vehicles with automatic transmission)
• The clutch pedal is depressed. (vehicles with manual transmission)
• The “DAC” switch is turned off while the system is operating.
The system will gradually ceases operat ion. The indicator will flash during
operation, and then go off when the system is fully off.
■ When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill
assist control system will stop operating, a buzzer will sound and the downhill
assist control system indicator will start flashing, and “TRC turned off” will be
shown on the multi-information display. Refrain from using the system until
the downhill assist control system indicator stays on and the message goes
off. (The vehicle can be driven normally during this time.)
■ Sounds and vibrations caused by the downhill assist control system
● A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in downhill assist control system.
● Either of the following conditions may occur when the downhill assist control
system is operating. None of these are indicators that a malfunction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.

3674-5. Using the driving support systems
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Driving
HILUX_OM_OM0K789E_(EE)
■If the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
■ Reactivation of the VSC system linked to vehicle speed
When the AUTO LSD system is turned on, the VSC and TRC systems will
turn on automatically if vehicle speed increase.
■ If the brake system overheats
The system will cease operation and a buzzer will alert the driver. At this time,
the “AUTO LSD” indicator will flash and “TRC turned off” will be shown on the
multi-information display. Stop the vehicle in a safe place. (There is no prob-
lem with continuing normal driving.) The system will be automatically restored
after a short time.
WARNING
■ To avoid an accident
Failure to do so, a much greater steer ing effort and more careful cornering
control will be required.
● Do not use the AUTO LSD system in conditions other than when one of
the drive wheels spinning occurs in a ditch or rough surface.
● Do not drive with the AUTO LSD system continuously turned on.
NOTICE
■Activating while driving
Do not activate the AUTO LSD system if the wheel is slipping. Stop the slip-
ping or spinning before activating.

4506-1. Using the air conditioning system and defogger
HILUX_OM_OM0K789E_(EE)
Heated steering wheel/seat heaters
: If equipped
Heated steering wheel and seat heaters heat the side grips of the
steering wheel and seats, respectively.
WARNING
● Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent battery discharge, do not use the functions when the engine is
not running.

553
8When trouble arises
HILUX_OM_OM0K789E_(EE)
8-1. Essential information
Emergency flashers ........... 554
If your vehicle has to
be stopped in an
emergency ....................... 555
If the vehicle is
submerged or water on
the road is rising .............. 557
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 559
If you think something is
wrong ............................... 564
Fuel pump shut off
system (gasoline engine
only) ................................. 565
If a warning light turns on
or a warning buzzer
sounds ............................. 566
If a warning message is
displayed ......................... 575
If you have a flat tire .......... 581
If the engine will not
start.................................. 598
If the electronic key does
not operate properly
(vehicles with smart
entry & start system)........ 600
If the vehicle battery is
discharged ....................... 604
If your vehicle
overheats ......................... 610
If you run out of fuel
and the engine stalls
(diesel engine only) ......... 614
If the vehicle becomes
stuck ................................ 615

5718-2. Steps to take in an emergency
HILUX_OM_OM0K789E_(EE)
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When trouble arises
(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. 345)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Parking brake indicator light (warning buzzer)*11
Warns the driver to release parking brake.
 Release the parking brake.
Low AdBlue™ level warning light (if equipped)
Indicates that the engine may not be restarted due to
AdBlue™ level is low.
 Have AdBlue™ refilled at any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
(Flashes)
AUTO LSD indicator (if equipped)
Indicate that the system is temporarily unavailable, due to
the brake system overheats.
 P. 367
Go to service warning light (warning buzzer) (if
equipped)
Indicates a malfunction in the electronic engine control
system or electronic throttle control system.
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
Warning lightWarning light/Details/Actions

6108-2. Steps to take in an emergency
HILUX_OM_OM0K789E_(EE)
If your vehicle overheats
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
The following may indicate that your vehicle is overheating.
● The needle of the engine coolant temperature gauge (P. 128)
enters the red zone or a loss of engine power is experienced.
(For example, the vehicle speed does not increase.)
● Vehicles with multi-information display: “Engine Coolant Temp
High Stop in a Safe Place See Owner’s Manual” is shown on the
multi-information display.
● Steam comes out from under the hood.
Correction procedures
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6148-2. Steps to take in an emergency
HILUX_OM_OM0K789E_(EE)
If you run out of fuel and the engine stalls
(diesel engine only)
If you run out of fuel and the engine stalls:
Refuel your vehicle.
To bleed the fuel system, oper-
ate the priming pump until you
feel more resistance.
Start the engine. ( P. 219, 222)
If the engine does not start after the above steps have been performed,
wait for 10 seconds and try steps and again. If the engine still does
not start, contact any authorized Toyo ta retailer or Toyota authorized
repairer, or any reliable repairer.
After starting the engine, depress the accelerator pedal lightly until the
engine runs smoothly.
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NOTICE
■ When restarting the engine
● Do not crank the engine before refueling and operating the priming pump.
This may damage the engine and fuel system.
● Do not crank the engine for more than 30 seconds at a time. This may
overheat the starter and wiring system.
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