2020 TOYOTA HILUX Coolant

5647-2. Maintenance
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■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Toyota recom-
mends that maintenance service operations as well as other inspections and
repairs be carried out by authorized Toyota retailers or Toyota authorized
repairers, or any reliable repairers. For repairs and services covered by your
warranty, please visit an authorized Toyota retailer or repairer, who will use
genuine Toyota parts in repairing any difficulties you may encounter. There
can also be advantages in utilizing authorized Toyota retailers or repairers for
non-warranty repairs and services, as members of the Toyota network will be
able to expertly assist you with any difficulties you may encounter.
Your Toyota retailer or Toyota authoriz ed repairer, or any reliable repairer will
perform all of the scheduled maintenance on your vehicle reliably and eco-
nomically due to their experience with Toyota vehicles.
■ Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
● Engine missing, stumbling or pinging
● Appreciable loss of power
● Strange engine noises
● A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
● Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
● Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
● Vehicle pulls to one side when driven straight on a level road
● Strange noises related to suspension movement
● Loss of brake effectiveness, spongy feeling brake pedal or clutch pedal,
pedal almost touches the floor, vehicle pulls to one side when braking
● Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as soon as pos-
sible. Your vehicle may need adjustment or repair.

5667-3. Do-it-yourself maintenance
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Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
Battery condition
( P. 578)
•Warm water• Baking soda•Grease
• Conventional wrench (for terminal clamp bolts)
• Distilled water
Engine coolant/
intercooler
coolant
(if equipped) level
( P. 576)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 573)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 6 0 2 )• Fuse with same amperage rating as original
Light bulbs
( P. 607)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head screwdriver
• Flathead screwdriver•Wrench
Radiator,
condenser and
intercooler
(if equipped)
( P. 577)

Tire inflation
pressure
( P. 593)
• Tire pressure gauge• Compressed air source
Washer fluid
( P. 582)
• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

5707-3. Do-it-yourself maintenance
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Engine compartment
Gasoline engine
Engine coolant reservoir
( P. 576)
Engine oil level dipstick
( P. 573)
Engine oil filler cap ( P. 574)
Fuse box ( P. 602)
Battery ( P. 578)
Washer fluid tank ( P. 582)
Condenser ( P. 577)
Radiator ( P. 577)
1
2
3
4
5
6
7
8

5717-3. Do-it-yourself maintenance
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7
Maintenance and care
Diesel engine (vehicles without water-cooled intercooler)
Battery (if equipped)
( P. 578)
Engine coolant reservoir
( P. 576)
Engine oil filler cap ( P. 574)
Engine oil level dipstick
( P. 573)
AdBlue™ tank cap
(if equipped) ( P. 585)
Fuel filter ( P. 583, 682)
Fuse box ( P. 602)
Battery ( P. 578)
Washer fluid tank ( P. 582)
Intercooler ( P. 577)
Radiator ( P. 577)
Condenser (if equipped)
( P. 577)
1
2
3
4
5
6
7
8
9
10
11
12

5727-3. Do-it-yourself maintenance
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Diesel engine (vehicles with water-cooled intercooler)
Engine coolant reservoir
( P. 576)
Engine oil filler cap ( P. 574)
Engine oil level dipstick
( P. 573)
AdBlue™ tank cap ( P. 585)
Fuel filter ( P. 583, 682)
Fuse box ( P. 602)
Battery ( P. 578)
Washer fluid tank ( P. 582)
Intercooler coolant reservoir
( P. 576)
Intercooler cooling radiator
( P. 577)
Radiator ( P. 577)
Condenser (if equipped)
( P. 577)
1
2
3
4
5
6
7
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10
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12

5767-3. Do-it-yourself maintenance
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The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
■Engine coolant reservoir
If the level is on or below the “L” line, add coolant up to the “F” line.
( P. 678)
■Intercooler coolant reservoir (if equipped)
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F”
line. ( P. 678)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non- nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35 C [-31F])
For more details about engine coolant, contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
Coolant
Gasoline engineDiesel engine
Reservoir cap
“F” line
“L” line1
2
3
1
2
3

5777-3. Do-it-yourself maintenance
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7
Maintenance and care
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir cap, intercooler
coolant reservoir cap (if equipped), drain cock and water pump. If you cannot
find a leak, have any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer test the cap and check for leaks in the cooling system.
Check the radiator, condenser and Intercooler coolant radiator/inter-
cooler and clear away any foreign objects. If any of the above parts is
extremely dirty or you are not sure of their condition, have your vehi-
cle 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 (if equipped), the engine coolant reservoir
cap or intercooler coolant reservoir cap (if equipped).
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 coolant radiator/intercooler
(if equipped)
WARNING
■ When the engine is hot
Do not touch the radiator, condenser or Intercooler coolant radiator/inter-
cooler as they may be hot and cause serious injuries, such as burns.

6328-2. 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