2012 TOYOTA 4RUNNER cooling

314
4RUNNER_U
3-1. Using the air conditioning system and defogger
Manual air conditioning system
Adjusting the settings■ Basic setting
To turn on the air conditioning system and adjust the fan
speed, turn the fan speed control knob clockwise (increase) or
counterclockwise (decrease).
Turning the knob to “OFF” turns off the fan.
: If equipped
Fan speed control knob Air outlet selector knob
Cooling and dehumidification
function on/off button Temperature control knob
Outside/recirculated air mode button
STEP 1

315
3-1. Using the air conditioning system
and defogger
3
Interior features
4RUNNER_UTo adjust the temperature setting, turn the temperature control
knob clockwise (warm) or countercloc
kwise (cool).
If is not pressed, the system will blow ambient temperature
air or heated air.
For quick cooling, turn the temper ature control knob to “MAX A/C”.
The air conditioning will automatically turn on and, if an air outlet
position other than or is selected, the system will be
set to recirculated air mode. While “MAX A/C” is selected, it is not
possible to turn off the air conditioning.
To select the air outlets, set th e air outlet selector knob to the
desired position.
The positions between the air outlet selections shown below can
also be selected for more delicate adjustment.
Air flows to the upper body.
Air flows to the upper body and
feet.
STEP 2
STEP 3
CTH31AS004
CTH31AS005

318 3-1. Using the air conditioning system and defogger
4RUNNER_URear outlets
Direct air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
CTH31AS016
■Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used for an
extended period of time.
■ Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched to
in accordance with the outside temperature, etc.
■ When is selected for the air outlets used
For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the temperature setting.
■ When the indicator light on flashes
Press
to turn off the cooling and dehumidification function and turn it
on again. There may be a problem in the air conditioning system if the indi-
cator light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ When outside air temperature is below 32°F (0°C)
The cooling and dehumidification function may not operate even when
is pressed.

320
3-1. Using the air conditioning system and defogger
4RUNNER_U
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the
temperature setting.
Driver's side temperature control dial
Air outlet display
Driver’s side temperature display Fan speed display
Passenger’s side
temperature display
Passenger’s side
temperature control dial
Automatic mode button Air outlet selector buttons “Off” button
Cooling and dehumidification function on/off button
Fan speed control buttonWindshield defogger
button
Outside/recirculated air mode button Dual mode button

: If equipped

327
3-1. Using the air conditioning system
and defogger
3
Interior features
4RUNNER_U
■When outside air temperature is below 32°F (0°C)
The cooling and dehumidification function may not operate even when
is pressed.
■ When the indicator light on flashes
Press
to turn off the cooling and dehumidification function and turn it
on again. There may be a problem in the air conditioning system if the indi-
cator light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ Air conditioning odors
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic
mode.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

465
3-7. Other interior features
3
Interior features
4RUNNER_U
■
The power outlet can be used when
The engine is running.
■ The indicator light changes according to the maximum available
capacity as follows:
■ When the power outlet is in operation
The sound of the cooling fan may be heard from the right side of the luggage
compartment. This is normal and does not indicate a malfunction.
■ If the engine is started with the power outlet main switch on
The maximum capacity of the power supply may decrease to below the stan-
dard, or may be cut off completely, even when the vehicle is stationary.
■ The protection circuit may be activated to cut the power supply if any
of the following conditions apply:
● The engine is started with the power outlet main switch on.
● Use of electrical appliances exceeding the maximum capacity is
attempted.
A sound may be heard when the protection circuit is activated. This is nor-
mal and does not indicate a malfunction.
● Electrical appliances, which consume power exceeding 100 W, have
been used continuously for a long time period.
● The total power usage by all electrical features (headlights, air condition-
ing, etc.) has exceeded the total vehicle maximum for an extended
period of time.
120 V AC/400 W
120 V AC/100 W
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526 4-3. Do-it-yourself maintenance
4RUNNER_U
Engine coolantThe coolant level is sati sfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 627)
CTH43AS108
■ 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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.

527
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
Radiator and condenser
Check the radiator and condenser and clear away any foreign
objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have y our vehicle inspected by your Toyota dealer.
CAUTION
■When the engine is hot
Do not remove 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 stra ight 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.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.