2017 TOYOTA SEQUOIA radiator

391
4-2. Maintenance
4
Maintenance and care
General maintenance
Engine compartment
ItemsCheck points
Battery Maintenance-free. ( →P. 410)
Brake fluid At the correct level? ( →P. 407)
Engine coolant At the correct level? ( →P. 405)
Engine oil At the correct level? ( →P. 401)
Exhaust system No fumes or strange sounds?
Power steering fluid At the correct level? ( →P. 409)
Radiator/condenser/hoses Not blocked with foreign matter?
(→P. 407)
Washer fluid At the correct level? (→P. 413)
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Scheduled Maintenance
Guide” or “Owner’s Manual Supp lement”. It is recommended that
any problem you notice should be brought to the attention of your
Toyota dealer or qualifie d service shop for advice.

396 4-3. Do-it-yourself maintenance
ItemsParts and tools
Light bulbs(→P. 447)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
Power steering fluid level (→P. 409)
• Automatic transmission fluid
DEXRON® II or III
• Rag or paper towel
• Funnel (used only for adding power steering fluid)
Radiator and condenser (→P. 407)⎯
Tire inflation pressure ( →P. 423)• Tire pressure gauge
• Compressed air source
Washer fluid (→P. 413)
• Washer fluid containing antifreeze
(for winter use)
• Water
• Funnel (used only for adding washer fluid)

397
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 fans or radiator grille
Be sure the engine switch is in the LOCK position.
With the engine switch on, the cooling fans 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.

400
4-3. Do-it-yourself maintenance
Engine compartment
Washer fluid tank (→P. 413)
Engine oil level dipstick (→ P. 401)
Engine coolant reservoir (→ P. 405)
Engine oil filler cap (→ P. 402)Brake fluid reservoir
(→ P. 407)
Fuse box ( →P. 435)
Battery ( →P. 410)
Radiator ( →P. 407)
Cooling fans
Condenser ( →P. 407)
Power steering fluid reservoir (→ P. 409)

405
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.

406 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 straight 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.

407
4-3. Do-it-yourself maintenance
4
Maintenance and care
Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If either of the above parts are ex tremely dirty or you are not sure of
their condition, have y our vehicle checked by your Toyota dealer.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the MAX and MIN lines
on the reservoir.
■ Adding fluid
Make sure to check the fluid type and prepare the necessary items.
CAUTION
■ When the engine is hot
Do not touch the radiator or condenser as they may be hot and may cause
serious injuries, such as burns.
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
■ Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.

504
5-2. Steps to take in an emergency
If your vehicle overheats
Correction proceduresStop the vehicle in a safe plac e and turn off the air condition-
ing system, and then stop the engine.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.Engine coolant reservoir
“FULL”
“LOW”
Radiator cap
The following may indicate that your vehicle is overheating.
●The needle of the engine co olant temperature gauge (→P. 168)
enters the red zone or a loss of engine power is experienced.
(For example, the vehicl e speed does not increase.)
● Steam comes out from under the hood.