2023 TOYOTA HILUX engine coolant

5648-2. Steps to take in an emergency
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If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher
than normal.
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor
If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5798-2. Steps to take in an emergency
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8
When trouble arises
■If a message that indicates the malfunction of front camera is shown
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 270, 566)
● PCS (Pre-Collision System)*
●LDA (Lane Departure Alert With Yaw Assist Function)*
●RSA (Road Sign Assist)*
●Dynamic radar cruise control*
*: If equipped
■ If a message that indicates the malfunction of radar sensor is shown
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 270, 566)
● PCS (Pre-Collision System)*
●LDA (Lane Departure Alert With Yaw Assist Function)*
●Dynamic radar cruise control*
*: If equipped
■ If “See owner’s manual” is shown
● If the following messages are shown, follow the instructions accordingly.
• “Engine Coolant Temp High Stop in a Safe Place” ( P. 610)
• “Transmission fluid temp high” ( P. 237)
• “Water accumulation in fuel filter” ( P. 499)
• “AdBlue Level Low Fill up AdBlue in 2400 km” ( P. 502)
• “AdBlue level Low No start in 800 km Top up AdBlue” ( P. 502)
• “AdBlue empty Unable to Restart Engine Fill up AdBlue” ( P. 502)
•“DPF full” ( P. 370)
• “Front Camera Temporarily Unavailable” ( P. 270)
● If “Smart Entry & Start System malfunction” is shown, this may be a mal-
function.
Immediately have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
● If “Low Braking Power Stop in a Safe Place” is shown, there may be a mal-
function. Immediately stop the vehicle in a safe place and contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer. Continuing to drive the vehicle may be dangerous.
● If the following messages are shown, there may be a malfunction. Immedi-
ately stop the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
• “Charging System Malfunction Stop in a Safe Place”
• “Oil Pressure Low Stop in a Safe Place”

6108-2. Steps to take in an emergency
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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
1
2
3
1
2

6118-2. Steps to take in an emergency
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8
When trouble arises
The coolant level is satisfactory if it is between the “F” and “L” lines
on the reservoir.
4
Reservoir
“F” line
“L” line
Radiator cap (if equipped)
1
2
3
4
Engine coolant (gasoline
engine)
Engine coolant (diesel engine)
Intercooler coolant (if equipped)

6128-2. Steps to take in an emergency
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Add engine coolant if necessary. (P. 634)
Water can be used in an emergency if engine coolant is unavailable.
5
Engine coolant (gasoline
engine)
Engine coolant (diesel engine)
Intercooler coolant (if equipped)

6138-2. Steps to take in an emergency
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8
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 (if equipped), the engine coolant reservoir
cap or intercooler coolant reservoir cap (if equipped) while the engine and
radiator are hot. High temperature 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.
6
7

6349-1. Specifications
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*1: 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.
*2: Without power heater
*3: With power heater
Cooling system
Engine
coolant
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*1
8.2 L (8.7 qt., 7.2 Imp.qt.)*2
8.6 L (9.1 qt., 7.6 Imp.qt.)*3
For
EURO IV,
V and VI
models*1
With automatic transmission
9.8 L (10.4 qt., 8.6 Imp.qt.)
With manual transmission
8.7 L (9.2 qt., 7.7 Imp.qt.)*2
9.3 L (9.8 qt., 8.2 Imp.qt.)*3
Intercooler coolant capacity (if
equipped)2.95 L (3.12 qt., 2.60 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.

665Alphabetical index
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Driving
Break-in tips .......................... 194
Correct posture ....................... 38
Procedures............................ 190
Winter drive tips .................... 373
Dynamic radar cruise
control .................................... 300
Function ................................ 300
Warning message ................. 580
Eco Driving Indicator....... 124, 126
Emergency flashers................. 554
Electronic key
If the electronic key does
not operate properly ........... 600
Replacing the battery ............ 516
Emergency, in case of
If a warning buzzer
sounds ................................ 566
If a warning light turns on ...... 566
If the electronic key does
not operate properly ........... 600
If the engine will not start ...... 598
If the vehicle battery is
discharged .......................... 604
If the vehicle is submerged or
water on the road is
rising ................................... 557
If you have a flat tire.............. 581
If you lose your keys ............. 149
If you run out of fuel and
the engine stalls.................. 614
If you think something is
wrong .................................. 564
If your vehicle becomes
stuck ................................... 615
If your vehicle has to be
stopped in an
emergency.......................... 555
If your vehicle needs to be
towed .................................. 559
If your vehicle overheats ....... 610
Engine
“ACC” position ...................... 220
Compartment ........................ 486
Engine switch................ 219, 222
Hood ..................................... 484
How to start the
engine......................... 219, 222
Identification number ............ 625
If the engine will not start ...... 598
If you run out of fuel and the
engine stalls ....................... 614
If your vehicle has to be
stopped in an
emergency.......................... 555
Ignition switch
(engine switch) ........... 219, 222
Overheating .......................... 610
Engine coolant
Capacity ................................ 634
Checking ............................... 492
Preparing and checking
before winter....................... 373
Engine coolant
temperature gauge ................ 129
Engine immobilizer system .... 113
Engine oil
Capacity ................................ 628
Checking ............................... 489
Oil level warning light ............ 570
Oil pressure warning light ..... 566
Preparing and checking
before winter....................... 373
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