2010 TOYOTA SEQUOIA cooling

495
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.

503
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.

504 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 burns or other injuries.
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.

534 4-3. Do-it-yourself maintenance
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 R2 RR2 SEAT 30 A Power third seat 11 R1 RR2 SEAT 30 A Power third seat
12 POWER NO.4 25 A Power windows

5
When trouble arises
597
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.

598
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.

611
6-1. Specifications
6
Vehicle specifications
Cooling system
Ignition system
Capacity
4.6 L V8
(1UR-FE)
engine
Vehicles without towing package
14.5 qt. (13.7 L, 12.0 Imp.qt.)
Vehicles with towing package
15.6 qt. (14.8 L, 13.0 Imp. qt.)
5.7 L V8
(3UR-FE,
3UR-FBE)
engineVehicles 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.
Spark plug
Make DENSO
Gap SK20HR11
0.043 in. (1.1 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning engine.

647
Alphabetical index
Bluetooth audio .................... 336
Bluetooth phone ................... 387
Bottle holder ............................ 440
Brakes Fluid...................................... 505
Parking brake ....................... 161
Brake assist ............................. 229
Break-in tips ............................ 145
Card holder .............................. 426
Care Exterior ................................. 482
Interior .................................. 484
Seat belts ............................. 485
Cargo capacity ........................ 240
Cargo hooks ............................ 468
CD changer CD ........................................ 297
MP3 ...................................... 306
WMA disc ............................. 306
CD player ................................. 297
Chains ...................................... 245
Child restraint system Booster seats, definition ....... 126
Booster seats, installation .... 137
Convertible seats, definition............................. 126
Convertible seats,
installation .......................... 136
Front passenger occupant classification system .......... 121
Infant seats, definition .......... 126
Infant seats, installation ........ 135
Installing CRS with LATCH system................................ 132
Installing CRS with seat belts ................................... 135
Installing CRS with top tether straps ....................... 138
Child safety
Airbag precautions ............... 115
Battery precautions ...... 509, 597
Child restraint system ........... 126 Child-protectors .......................38
How your child should wear
the seat belt ..........................74
Installing child restraints ........130
Moon roof precautions ............95
Power window lock switch.......89
Power window precautions .....90
Removed key battery precautions .........................530
Seat belt extender precautions ...........................77
Seat belt precautions ..............75
Seat heater precautions ........459
Child-protectors .........................38
Cigarette lighter .......................449
Cleaning Exterior ..................................482
Interior ...................................484
Seat belts ..............................485
Climate control seat.................460
Clock ........................................ 445
Coin holder ...............................423
Compass ...................................477
Condenser ................................505
Console box .....................424, 431
Conversation mirror ................450
Cooling system
Engine overheating ...............598
CRS ...........................................126
Cruise control
Cruise control ........................190
Dynamic radar cruise control .................................193
Cup holders ..............................436
Curtain shield airbags .............108
Customizable features.............632
Daytime running light system ....................................183
Defogger
Rear window .........................280
Side mirrors ...........................280
Dimension.................................604
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