Page 547 of 720
5477-3. Do-it-yourself maintenance
HILUX_OM_OM0K322E_(EE)
7
Maintenance and care
Engine compartment
2TR-FE engine
Engine coolant reservoir  
( P. 553) 
Engine oil level dipstick  
 ( P. 550) 
Engine oil filler cap ( P. 551) 
Fuse box ( P. 578) 
Battery  ( P. 555) 
Washer fluid tank  ( P. 559) 
Condenser  ( P. 554) 
Radiator  ( P. 554)
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        Page 548 of 720
5487-3. Do-it-yourself maintenance
HILUX_OM_OM0K322E_(EE)
1GD-FTV and 2GD-FTV engines
Battery (if equipped) 
 ( P. 555) 
Engine coolant reservoir  
( P. 553) 
Engine oil filler cap ( P. 551) 
Engine oil level dipstick  
 ( P. 550) 
AdBlue™ tank cap  
(if equipped) ( P. 561) 
Fuel filter ( P. 560, 657) 
Fuse box ( P. 578) 
Battery  ( P. 555) 
Washer fluid tank  ( P. 559) 
Intercooler ( P. 554) 
Radiator ( P. 554) 
Condenser (if equipped) 
 ( P. 554)
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        Page 549 of 720
5497-3. Do-it-yourself maintenance
HILUX_OM_OM0K322E_(EE)
7
Maintenance and care
2KD-FTV engine
Battery (if equipped) 
 ( P. 555) 
Engine coolant reservoir  
( P. 553) 
Engine oil filler cap ( P. 551) 
Engine oil level dipstick  
 ( P. 550) 
Fuel filter ( P. 560, 657) 
Fuse box ( P. 578) 
Battery  ( P. 555) 
Washer fluid tank  ( P. 559) 
Condenser  ( P. 554) 
Radiator ( P. 554)
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10 
     
        
        Page 553 of 720

5537-3. Do-it-yourself maintenance
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7
Maintenance and care
The coolant level is satisfactory if it is between the “F” and “L” lines on 
the reservoir when the engine is cold.
If the level is on or below the “L” line, add coolant up to the “F” line.  
( P. 654)
■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 [-31F]) 
For more details about engine coolant, contact any authorized Toyota retailer 
or Toyota authorized repairer, or any reliable repairer. 
■ If the coolant level drops within a short time of replenishing 
Visually check the radiator, hoses, engine coolant reservoir cap, 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.
Engine coolant
Gasoline engineDiesel engine 
Reservoir cap 
“F” line  
“L” line1
2
3 
     
        
        Page 554 of 720

5547-3. Do-it-yourself maintenance
HILUX_OM_OM0K322E_(EE)
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. 
     
        
        Page 655 of 720
6558-2. Steps to take in an emergency
HILUX_OM_OM0K322E_(EE)
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When trouble arises
The coolant level is satisfactory if it is between the “F” and “L” lines 
on the reservoir. 
Reservoir 
“F” line 
“L” line 
Radiator cap (if equipped) 
Add engine coolant if necessary. ( P. 683)
Water can be used in an emergency if engine coolant is unavailable. 
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Gasoline engineDiesel engine
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Gasoline engineDiesel engine 
     
        
        Page 656 of 720

6568-2. Steps to take in an emergency
HILUX_OM_OM0K322E_(EE)
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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