Toyota Highlander User Manual

CO–8

2GR-FE COOLING – COOLANT

COOLANT

REPLACEMENT

1. REMOVE NO. 1 ENGINE UNDER COVER (See page

EM-21)

2. DRAIN ENGINE COOLANT

(a) Loosen the radiator drain cock plug.

HINT:
Collect the coolant in a container and dispose of it
according to the regulations in your area.

(b) Remove the radiator reservoir cap.

CAUTION:
Do not remove the radiator reservoir cap while
the engine and radiator are still hot.
Pressurized, hot engine coolant and steam may
be released and cause serious burns.

(c) Loosen the 2 cylinder block drain cock plugs.

Radiator Reservoir Cap

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Radiator Reservoir

Cylinder Block Drain Cock Plug

Cylinder Block Drain Cock Plug

Radiator Drain Cock Plug

A126964E01

3. ADD ENGINE COOLANT

(a) Tighten the radiator drain cock plug by hand.
(b) Tighten the 2 cylinder block drain cock plugs.

Torque: 12.7 N*m (130 kgf*cm, 10 ft.*lbf)

(c) Add TOYOTA Super Long Life Coolant (SLLC) to

the radiator reservoir filler opening.

2GR-FE COOLING – COOLANT

(d) Continue adding TOYOTA SLLC until it is filled to

B Line

the B line at the base of the reservoir's filler neck.

Standard capacity

Item Specified Condition
STD (A/T) 8.9 liters (9.4 US qts, 7.8 Imp. qts)
TWG (A/T) 9.3 liters (9.8 US qts, 8.2 Imp. qts)

HINT:
TOYOTA vehicles are filled with TOYOTA SLLC at

A112307E01

the factory. In order to avoid damage to the engine
cooling system and other technical problems, only
use TOYOTA SLLC or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite,
non-borate coolant with long-life hybrid organic acid
technology (coolant with long-life hybrid organic
acid technology consists of a combination of low
phosphates and organic acids).

NOTICE:
Never use water as a substitute for engine
coolant.

(e) Press the No. 1 and No. 2 radiator hoses several

times by hand, and then check the level of the
coolant. If the coolant level drops below the B line,

add TOYOTA SLLC to the B line.
(f) Install the radiator reservoir cap.
(g) St art the engine and warm it up until the coo lin g f an

operates. While the cooling fan operates, circulate

the coolant for several minutes.

(1) Set the air conditioning as follows while

warming up the engine.

Item Specified Condition

Manual Air Conditioning System Fan speed: Any setting except OFF

Automatic Air Conditioning System Temperature: Toward MAX

CO–9

Temperature: Toward WARM
Air conditioning switch: OFF

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Air conditioning switch: OFF

(2) Maintain the engine speed at 2,000 to 2,500

rpm and warm up the engine until the cooling
fan operates.

NOTICE:

• Make sure that the radiator reservoir still
has some coolant in it.

• Pay attention to the needle of the water
temperature meter. Make sure that the
needle does not show an abnormally
high temperature.

• If there is not enough coolant, the engine
may burn out or overheat.

• Immediately after starting the engine, if
the radiator reservoir does not have any
coolant, perform the following: 1) stop
the engine, 2) wait until the coolant has
cooled down, and 3) add coolant until the
coolant is filled to the B line.