2017 TOYOTA SEQUOIA radiator cap

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.

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.

5
When trouble arises
505
5-2. Steps to take in an emergency
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine to check that the radiator cooling fan oper-
ates and to check for coolant le
aks from the radiator or hoses.
If the fan is not operating: Stop the engine immediately and contact your Toyota
dealer.
If the fan is operating: Have the vehicle inspected at the nearest Toyota dealer.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fan and belts. Failure to do so may cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the radiator cap and coolant reservoir while the engine and
radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.

569
Alphabetical index
Radiator.................................... 407
Radio
*
Rear air conditioning
system ................................... 303
Rear console box .................... 328
Rear seat
Adjustment ............................. 51
Folding down second seatback............................... 55
Folding down third seatback............................... 57
Rear seat entertainment system
*
Rear seat entertainment system controller battery
*
Rear side sunshade ................ 360
Rear turn signal lights Replacing light bulbs ............ 447
Wattage ................................ 522
Rear view mirror
Anti-glare .......................... 81, 86
Compass .............................. 376
Indicator................................ 227
Rear view monitor system
*
Rear window defogger............ 307
Rear window wiper.................. 199
Replacing Fuses.................................... 435
Key battery ........................... 433
Light bulbs ............................ 447
Tires ..................................... 486
Reporting safety defects for
U.S. owners ........................... 546
Resetting the maintenance required reminder light ........ 389
Resetting the message indicating maintenance
is required ............................. 389
Roof luggage carrier ................. 88 Seat belts
Adjusting the seat belt .............69
ALR .........................................74
Automatic Locking Retractor ...............................74
Child restraint system installation ...........................133
Cleaning and maintaining
the seat belts ......................386
Comfort guide..........................72
ELR .........................................74
Emergency Locking Retractor ...............................74
How to wear your seat belt......69
How your child should wear
the seat belt ..........................75
Pregnant women, proper seat
belt use .................................74
Reminder light .......................471
Seat belt extenders .................75
Seat belt pretensioners ...........73
Seat heaters..............................354
Seating capacity.......................264
Seats Adjustment ........................48, 51
Adjustment precaution ......50, 61
Child seats/child restraint system installation ..............133
Cleaning ................................385
Climate control seat ..............357
Driver’s seat position memory .................................62
Head restraint..........................65
Properly sitting in the seat .....110
Seat heaters ..................354, 357
Seat heaters and ventilators ...........................357
RS
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.