2010 TOYOTA HIGHLANDER radiator cap

437
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compar tment
2.7 L 4-cylinder (1AR-FE) engine
Washer fluid tank (P. 452)
Engine oil filler cap ( P. 441)
Engine oil level dipstick ( P. 440)
Engine coolant reservoir ( P. 445)Battery ( P. 449)
Brake fluid reservoir ( P. 448)
Fuse boxes ( P. 475)
Electric cooling fans
Condenser ( P. 447)
Radiator ( P. 447)

438 4-3. Do-it-yourself maintenance
3.5 L V6 (2GR-FE) engine
Washer fluid tank (P. 452)
Engine oil filler cap ( P. 441)
Engine oil level dipstick ( P. 440)
Engine coolant reservoir ( P. 445)Battery ( P. 449)
Brake fluid reservoir ( P. 448)
Fuse boxes ( P. 475)
Electric cooling fans
Condenser ( P. 447)
Radiator ( P. 447)

446 4-3. Do-it-yourself maintenance
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler 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 coolant reservoir 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.

546 5-2. Steps to take in an emergency
■Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam is coming from under the hood.
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 injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
(P. 558)
Have the vehicle chec ked at the nearest Toyota dealer as soon as
possible.
STEP6

601
Alphabetical index
Radiator.................................... 447
Radio ........................................ 284
Rear automatic air
conditioning system ............. 274
Rear manual air conditioning
system ................................... 271
Rear seat Adjustment ............................. 82
Folding down second
seatback............................... 84
Folding down third
seatback............................... 86
Removing the second center seat ........................... 87
Stowing the second center seat ........................... 87
Rear seat entertainment
system ................................... 311
Rear turn signal lights Replacing light bulbs ............ 486
Wattage ................................ 566
Rear view mirror Compass .............................. 411
Rear view monitor system...... 214
Rear window defogger............ 277
Rear window wiper.................. 210
Replacing Fuses.................................... 475
Key battery ........................... 472
Light bulbs ............................ 486
Tires ..................................... 522
Reporting safety defects for
U.S. owners ........................... 588 Seat belts
Adjusting the seat belt .............94
Automatic Locking
Retractor ...............................95
Child restraint system
installation ...........................151
Cleaning and maintaining the seat belts ......................420
Emergency Locking Retractor ...............................95
How to wear your seat belt......94
How your child should wear
the seat belt ..........................97
Pregnant women, proper seat
belt use .................................96
Reminder light .......................513
Seat belt extenders .................97
Seat belt pretensioners ...........95
Seat heaters..............................396
Seating capacity.......................237
Seats Adjustment ........................79, 82
Adjustment precaution ......81, 90
Child seats/child restraint system installation ..............151
Cleaning ................................419
Head restraint..........................91
Properly sitting in the seat .....126
Seat heaters ..........................396RS