radiator cap TOYOTA 4RUNNER 2016 N280 / 5.G Owners Manual

3506-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B23U)
Engine compartment
Washer fluid tank (P. 363)
Power steering fluid reservoir
(P. 359)
Engine oil level dipstick
(P. 352)
Engine coolant reservoir
(P. 355)
Engine oil filler cap (P. 353)Brake fluid reservoir
(P. 357)
Fuse box (P. 382)
Battery (P. 360)
Condenser (P. 356)
Radiator (P. 356)1
2
3
4
5
6
7
8
9
10

3556-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35B23U)
The coolant level is satisfactory 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. 452)
■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% deion-
ized water. (Minimum temperature: -31F [-35C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized 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.
Engine coolant
1
2
3

3566-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B23U)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely 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 or the radiator cap.
(P. 453)
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 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 it from damaging parts or paint.
Radiator and condenser
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

4527-2. Steps to take in an emergency
4RUNNER (U)_(OM35B23U)
●The needle of the engine coolant temperature gauge (P. 8 1 )
enters the red zone or a loss of engine power is experienced.
(For example, the vehicle speed does not increase.)
●Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, 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 “F” and “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
Radiator cap
If your vehicle overheats
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3
1
2
4
1
2
3
4

4537-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B23U)
Add engine coolant if neces-
sary. (P. 351)
Water can be used in an emer-
gency if engine coolant is unavail-
able.
Start the engine to check that the radiator cooling fan operate and
to check for coolant leaks from the radiator or hoses.
If the fan are not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan are operating:
Have the vehicle inspected at the nearest Toyota dealer.
5
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●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.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts.
6
7
●Do not loosen the radiator cap and the
coolant reservoir cap while the engine
and radiator are hot.
High temperature steam or coolant
could spray out.

522Alphabetical index
4RUNNER (U)_(OM35B23U)
Parking brake ........................... 203
Operation .............................. 203
Parking brake engaged
warning buzzer ................... 413
Parking lights ........................... 204
Light switch ........................... 204
Replacing light bulbs............. 390
Wattage ................................ 469
Pen holder ................................ 301
Personal lights ......................... 294
Power back window ................ 148
Jam protection function......... 150
Operation .............................. 148
Power outlets ................... 311, 316
Power steering
Fluid ...................................... 359
Warning light ......................... 415
Power windows........................ 145
Door lock linked
window operation ............... 146
Jam protection function......... 146
Operation .............................. 145
Window lock switch............... 145Radiator .................................... 356
Rear differential lock
system.................................... 243
Rear seats
Adjustment............................ 122
Folding down ........ 124, 126, 128
Rear step bumper .................... 115
Rear turn signal lights ............ 202
Replacing light bulbs ............ 396
Turn signal lever ................... 202
Wattage ................................ 469
Rear view mirror
Inside rear view mirror .......... 141
Outside rear view mirrors ..... 143
Rear view monitor system
*
Rear window ............................ 148
Rear window
defoggers....................... 280, 286
Rear window wiper .................. 215
Refueling .................................. 218
Capacity................................ 460
Fuel types ............................. 460
Opening the fuel tank cap..... 220
Replacing
Fuses .................................... 382
Key battery ........................... 379
Light bulbs ............................ 385
Tires...................................... 429
Reporting safety defects
for U.S. owners...................... 494
Resetting the message
indicating maintenance
is required.............................. 341
Roof luggage carrier ............... 168
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