2012 TOYOTA SEQUOIA cooling

531
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury observe the following precautions.
■
When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience discomfort, see a doctor.
■ When working near the cooling fan or radiator grille
Be sure the engine switch is off.
With the engine switch on, the cooling fan may automatically start to run if
the air conditioning is on and/or the coolant temperature is high.
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.

539
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
LOW
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.

540 4-3. Do-it-yourself maintenance
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.
NOTICE
■When adding engine 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 damage to parts or paint.

571
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Engine compartment
FuseAmpereCircuit
1 A/F 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
2 HORN 10 A Horn
3 EFI NO.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system
4 IG2 MAIN 30 A INJ, MET, IGN fuses
5 L2 RR2 SEAT 30 A Power third seat
6 L1 RR2 SEAT 30 A Power third seat
7 CDS FAN 25 A Electric cooling fans
8 DEICER 20 A Windshield wiper de-icer
9 TOW TAIL 30 A Trailer lights (tail lights)
10 CDS FAN NO.2 25 A Electric cooling fans
11 R2 RR2 SEAT 30 A Power third seat
12 R1 RR2 SEAT 30 A Power third seat

636 5-2. Steps to take in an emergency
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it
is not unintentionally in contact with any part other than the intended termi-
nal.
● Do not allow the jumper cables to come into contact with the “+” and “-” ter-
minals.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
■ Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery.
When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
●
Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
● Do not allow children near the battery.
NOTICE
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan
or any of the belts when connecting or disconnecting them.

5
When trouble arises
637
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.

650 6-1. Specifications
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.
Cooling system
Capacity
4.6 L V8
(1UR-FE)
engine 15.6 qt. (14.8 L, 13.0 Imp. qt.)
5.7 L V8
(3UR-FE,
3UR-FBE)
engine Vehicles without towing package
14.5 qt. (13.7 L, 12.0 Imp.qt.)
Vehicles with towing package
15.4 qt. (14.6 L, 12.8 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.

697
Alphabetical index
Blind Spot Monitor .................. 236
Blind Spot Monitor
system ................................... 236
Bluetooth
® audio..................... 368
Bluetooth® phone ................... 419
Bottle holder ............................ 472
Brakes Fluid...................................... 541
Parking brake ....................... 167
Brake assist ............................. 254
Break-in tips ............................ 151
Card holder .............................. 458
Care Exterior ................................. 518
Interior .................................. 520
Seat belts ............................. 521
Cargo capacity ........................ 266
Cargo hooks ............................ 501
CD changer CD ........................................ 329
MP3 ...................................... 338
WMA disc ............................. 338
CD player ................................. 329
Chains ...................................... 272
Child restraint system Booster seats, definition ....... 132
Booster seats, installation .... 143
Convertible seats, definition............................. 132
Convertible seats,
installation .......................... 142
Front passenger occupant classification system .......... 127
Infant seats, definition .......... 132
Infant seats, installation ........ 141
Installing CRS with LATCH system................................ 138
Installing CRS with seat belts ................................... 141
Installing CRS with top tether straps ....................... 144 Child safety
Airbag precautions ................121
Battery precautions .......545, 636
Child restraint system............132
Child-protectors .......................38
How your child should wear
the seat belt ..........................78
Installing child restraints ........136
Moon roof precautions ..........101
Power window lock switch.......93
Power window precautions .....95
Removed key battery
precautions .........................567
Seat belt extender
precautions ...........................81
Seat belt precautions ..............78
Seat heater precautions ........491
Child-protectors .........................38
Cigarette lighter .......................481
Cleaning Exterior ..................................518
Interior ...................................520
Seat belts ..............................521
Climate control seat.................492
Clock ........................................ 477
Coin holder ...............................455
Compass ...................................511
Condenser ................................541
Console box .....................456, 463
Conversation mirror ................482
Cooling system Engine overheating ...............637
CRS ...........................................132
Cruise control Cruise control ........................203
Dynamic laser cruise
control .................................207
Cup holders ..............................468
Curtain shield airbags .............114
Customizable features.............672
C