2010 TOYOTA 4RUNNER radiator cap

495
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
Engine compar tment
2.7 L 4-cylinder (2TR-FE) engine
Washer fluid tank (P. 512)
Engine coolant reservoir ( P. 503)
Engine oil filler cap ( P. 498)
Power steering fluid reservoir ( P. 507)
Engine oil level dipstick ( P. 498)Brake fluid reservoir
( P. 505)
Fuse box ( P. 531)
Battery ( P. 509)
Condenser ( P. 504)
Radiator ( P. 504)
CTH43AS131

496 4-3. Do-it-yourself maintenance
4RUNNER_U
4.0 L V6 (1GR-FE) engine
Washer fluid tank (P. 512)
Power steering fluid reservoir ( P. 507)
Engine oil level dipstick ( P. 498)
Engine coolant reservoir ( P. 503)
Engine oil filler cap ( P. 498)Brake fluid reservoir
( P. 505)
Fuse box ( P. 531)
Battery ( P. 509)
Condenser ( P. 504)
Radiator ( P. 504)
CTH43AS117

503
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
Engine coolant
The coolant level is sati sfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 603)
CTH43AS108
■ Coolant selection
Only use “Toyota Super Long Life Coolant” or a 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. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.

504 4-3. Do-it-yourself maintenance
4RUNNER_U
Radiator and condenserCheck the radiator and condenser and clear away any foreign
objects.
If either of the above parts is extr emely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dealer.
CAUTION
■When the engine is hot
Do not remove the engine 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 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 it from damaging parts or paint.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause burn\
s.

604 5-2. Steps to take in an emergency
4RUNNER_U
■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 comes out 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 injuries such as burns.
● Keep hands and clothing away from the fan and drive belt while the engine
is running.
● Do not loosen the radiator cap, or 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. 616)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.
CTH52AS033
STEP 6

658 Alphabetical index
4RUNNER_U
Radiator .................................... 504
Radio ......................................... 317
Rear differential lock system .................................... 235
Rear seats Adjustment .............................. 65
Folding down ...............67, 69, 72
Rear step bumper ...................... 57
Rear turn signal lights Replacing light bulbs ............. 541
Wattage .................................622
Rear view monitor system ......218
Rear window ............................... 94
Rear window defogger ............310
Rear window wiper .................. 207
Replacing
Fuses .................................... 531
Key battery ............................ 528
Light bulbs ............................. 541
Tires ......................................578
Reporting safety defects for U.S. owners ......................646
Roll sensing of curtain shield airbags off switch....... 127
Roof luggage carrier ................267
Safety Connect .........................469
Seat belts
Adjusting the seat belt .............79
Automatic Locking Retractor ............................... 81
Child restraint system installation ...........................139
Cleaning and maintaining the seat belts ......................482
Emergency Locking
Retractor ............................... 81
How to wear your seat belt......79
How your child should wear the seat belt ..........................82 Pregnant women,
proper seat belt use .............. 81
Reminder light ....................... 568
Seat belt extenders ................. 82
Seat belt pretensioners ........... 80
Seat heaters ............................. 446
Seating capacity ...................... 273
Seats Adjustment ........................ 61, 65
Adjustment precautions .... 64, 75
Child seats/child restraint system installation .............. 139
Cleaning ................................ 481
Head restraints........................ 76
Properly sitting in the seat..... 112
Seat heaters.......................... 446
Service reminder indicators .............................. 189
Shift lever Automatic transmission ......... 173
Front-wheel drive .................. 223
If the shift lever cannot be shifted from P ..................... 592
Shift lock system ..................... 592
Side airbags ............................. 114
Side marker lights Replacing light bulbs ............. 541
Switch ................................... 198
Wattage................................. 622
Side mirrors Adjusting and folding............... 89
Slide deck ................................. 459
Smart key system Entry function .......................... 33
Starting the engine ................ 167
“SOS” button ........................... 469
Spare tire Inflation pressure .................. 621
Storage location .................... 578
Spark plug ................................ 616R
S