cooling system TOYOTA TACOMA 2012 Owners Manual (in English)

248
3-1. Using the air conditioning system and defogger
Air conditioning system
Adjusting the settings■ Adjusting the temperature setting
Turn the temperature control dial clockwise (warm) or counter-
clockwise (cool).
If is not pressed, the system will blow ambient temperature air or
heated air.
For quick cooling, turn the temperature control dial to the MAX A/C posi-
tion. The air conditioning will automatically turn on and the air intake
selector will be set to recirculated air mode.
■ Adjusting the fan speed
Turn the fan speed control dial clockwise (increase) or counter-
clockwise (decrease).
Set the dial to OFF to turn the fan off.
Outside air or recirculated
air mode switch Air outlet selection dialAir conditioning
ON/OFF switch Temperature control dial
Fan speed control dial

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolant
The coolant level is satisfactory if it is between the FULL and LOW
lines on the reservoir when the engine is cold.
Reservoir cap
FULL line
LOW line
If the level is on or below the
LOW line, add coolant up to the
FULL line.
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.
■ Coolant selection
Only use “Toyota Super Long Life Coolant” or 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. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42 C])
For more details about engine coolant, contact your Toyota dealer.
CAUTION
■ When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

5
When trouble arises
539
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fan is not operating: Stop the engine immediately and call your local Toyota
dealer.

559
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity
2.7 L 4-cylinder (2TR-FE)
engine
4.0 L V6 (1GR-FE) engine Vehicles with an automatic transmission
9.1 qt. (8.6 L, 7.6 Imp.qt.)
Vehicles with a manual transmission
9.2 qt. (8.7 L, 7.7 Imp.qt.)
Vehicles with an automatic transmission
10.1 qt. (9.6 L, 8.4 Imp.qt.)
Vehicles with a manual transmission
10.3 qt. (9.7 L, 8.5 Imp.qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Spark plug 2.7 L 4-cylinder (2TR-FE)
engine
Make DENSO
Gap 4.0 L V6 (1GR-FE) engine
Make DENSO NGK
Gap SK20HR11
0.043 in. (1.1 mm)
K20HR-U11
LFR6C11
0.043 in. (1.1 mm)
NOTICE
■
Iridium-tipped spark plugs (2.7 L 4-cylinder [2TR-FE] engine only)
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

615
Alphabetical index
Bluetooth® audio..................... 309
Bluetooth® phone ................... 326
Bottle holders .................. 365, 369
Brake assist ............................. 200
Brakes Brake system warning buzzer........... 191, 193, 198, 205, 505
Brake system warning
light .................................... 505
Fluid...................................... 444
Parking brake ....................... 154
Break-in tips ............................ 134
Camper information ................ 604
Care Exterior ................................. 418
Interior .................................. 421
Seat belts ............................. 422
Cargo capacity ................ 212, 549
Cargo net hook ................ 391, 399
CD player ................................. 267
Certification label ............ 227, 553
Chains ...................................... 220
Child restraint system Booster seats, definition ....... 108
Booster seats, installation .... 122
Convertible seats, definition............................. 108
Convertible seats, installation .......................... 120
Front passenger occupant
classification system .......... 103
Infant seat, definition ............ 108
Infant seats, installation ........ 119
Installing CRS with LATCH system........................ 116, 118
Installing CRS with seat
belts ................................... 119
Installing CRS with top tether straps ....... 123, 126, 127 Child safety
Airbag precautions ..................97
Battery precautions .......449, 538
Child restraint system............108
Child-protectors .......................41
How your child should wear
the seat belt ..........................65
Installing child restraints ........112
Power window lock switch.......78
Power window precautions .....79
Removed wireless remote
control battery
precautions .........................473
Seat belt extender
precautions ...........................68
Seat belt precautions ..............66
Child-protectors .........................41
Cleaning
Exterior ..................................418
Interior ...................................421
Seat belts ..............................422
Clock ........................................ 375
Clutch start cancel switch.......199
Compass ...................................409
Condenser ................................444
Console box .....................365, 366
Cooling system Engine overheating ...............539
CRS ...........................................108
Cruise control...........................174
Cup holders ......................365, 367
Curtain shield airbags ...............89
Customizable features.............583
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