cooling TOYOTA HILUX 2019 User Guide

5457-3. Do-it-yourself maintenance
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Maintenance and care
Check the radiator, condenser and intercooler and clear away any for-
eign objects. If any of the above parts is extremely dirty or you are not
sure of their condition, have your vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
■ When the engine is hot
Do not remove the radiator cap or the engine coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■ When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
■ Notice on coolant quality
Do not use improper coolant. If improper coolant is used, the engine cooling
system may be damaged.
Radiator, condenser and intercooler (if equipped)
WARNING
■ When the engine is hot
Do not touch the radiator, condenser or intercooler as they may be hot and
cause serious injuries, such as burns.

6138-2. Steps to take in an emergency
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When trouble arises
■If “DIFFERENTIAL OIL TEMP HIGH SHIFT TO 2WD MODE COOLING TIME
REQUIRED”/“Differential oil temp high Shift to 2WD mode Cooling time
required” or “DIFFERENTIAL OIL TEMP HIGH COOLING TIME
REQUIRED”/“Differential oil temp high Cooling time required” is shown
on the multi-information display
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. 363)
■ If “ENGINE OIL LEVEL LOW ADD OR REPLACE”/“Engine oil level low
Add or replace” is shown on the multi-information display
The engine oil level is low. (This warning message may be displayed if the
vehicle is stopped on a slope. Move 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. 532)
■ If “POWER TURNED OFF TO SAVE BATTERY”/“Power turned off to save
battery” is shown on the multi-information display
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”/“DPF full Manual regeneration required See owner’s manual”
is shown on the multi-information display
The deposit collected in the filter needs to be regenerated.
 P. 398
■ If “FRONT CAMERA UNAVAILABLE”/“Front Camera Unavailable” or
“FRONT CAMERA VISION BLOCKED CLEAN AND DEMIST WIND-
SHIELD”/“Front Camera Vision Blocked Clean and Demist Windshield”
is shown on the multi-information display
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 333, 602)
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert)
● RSA (Road Sign Assist)
■ If “Check RSA system” is shown on the multi-information display
The RSA system is malfunctioning.
Have the vehicle inspected by any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer immediately.

6448-2. Steps to take in an emergency
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WARNING
■When exchanging the battery
● When the vent plug and indicator are close to the hold down bracket, the
battery fluid (sulfuric acid) may leak.
● For information regarding battery replacement, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■ To prevent damage to the vehicle (vehicles with manual transmission)
Do not pull- or push-start the vehicle as the three-way catalytic converter or
catalytic converter may overheat and become a fire hazard.
NOTICE
■ When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or belt.

6458-2. Steps to take in an emergency
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When trouble arises
If your vehicle overheats
●The needle of the engine coolant temperature gauge (P. 132)
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)
● Steam comes out from under the hood.
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.
Correction procedures
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2

6478-2. 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 or the coolant reservoir cap while the
engine and radiator are hot. High tem perature 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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9-1. Specifications
Vehicle specifications
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*: EURO IV, V and VI are emission standards. If it is not clear that your vehi-
cle meets relevant standards, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Cooling system
Capacity
Gasoline engine
With automatic transmission
8.1 L (8.6 qt., 7.1 Imp.qt.)
With manual transmission
7.8 L (8.2 qt., 6.9 Imp.qt.)
Diesel
engine
Except for
EURO IV,
V and VI
models*
Without power heater
8.3 L (8.8 qt., 7.3 Imp.qt.)
With power heater
8.7 L (9.2 qt., 7.7 Imp.qt.)
For
EURO IV
models*
Without power heater
8.6 L (9.1 qt., 7.6 Imp.qt.)
With power heater
8.9 L (9.4 qt., 7.8 Imp.qt.)
For
EURO V
and VI
models*
With automatic transmission
9.6 L (10.1 qt., 8.4 Imp.qt.)
With manual transmission
9.1 L (9.6 qt., 8.0 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite, and non-borate coolant
with long-life hybrid organic acid
technology
Do not use plain water alone.

698Alphabetical index
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Child safety ................................ 64
Airbag precautions .................. 47
Battery precautions ....... 549, 643
Child restraint system ............. 65
How your child should
wear the seat belt ................. 42
Installing child restraints.... 81, 90
Power window lock
switch.................................. 233
Power window precautions ... 235
Rear door child-protectors .... 177
Removed key battery
precautions ......................... 569
Seat belt precautions .............. 44
Seat heater precautions ........ 501
Child-protectors ....................... 177
Cleaning............................ 526, 529
Aluminum wheels .................. 527
Exterior.................................. 526
Interior ................................... 529
Seat belts .............................. 530
Clock ......................................... 515
Clutch........................................ 675
Coat hooks ............................... 519
Condenser ................................ 545
Console box ............................. 507
Cooling system
Engine overheating ............... 645
Cruise control .......................... 348
Cup holders .............................. 508
Curtain shield airbags ............... 45
DAC ........................................... 395
Daytime running light
system .................................... 296
Deck hooks .............................. 513
Defogger
Outside rear view
mirrors ........................ 485, 494
Rear window ................. 485, 494
Windshield .................... 485, 494
Differential
Oil ......................................... 675
Dimension ................................ 652
Display
LDA (Lane Departure
Alert)................................... 344
Multi-information
display ........................ 137, 141
Trip information ............. 138, 143
Do-it-yourself maintenance .... 535
Doors
Door glasses ......................... 232
Door lock............................... 174
Open door warning light........ 606
Outside rear view mirrors...... 229
Rear door child-protectors .... 177
Side doors............................. 174
Downhill assist control
system .................................... 395
DPF (Diesel Particulate Filter)
system .................................... 398
Warning light ......................... 605
Warning message ................. 613
Driver’s seat belt
reminder light ........................ 606
Driving
Break-in tips .......................... 241
Correct posture ....................... 38
Procedures ........................... 238
Winter drive tips .................... 403
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