2016 TOYOTA HIGHLANDER radiator cap

5087-3. Do-it-yourself maintenance
HIGHLANDER_U (OM48F09U)■
2.7 L 4-cylinder (1AR-FE) engine
Engine compartment
Washer fluid tank
( P. 519)
Fuse boxes ( P. 541)
Engine oil level dipstick ( P. 510)
Engine oil filler cap ( P. 511)
Engine coolant reservoir ( P. 513) Battery
( P. 516)
Brake fluid reservoir ( P. 515)
Electric cooling fans
Condenser ( P. 514)
Radiator ( P. 514)1
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5097-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM48F09U)■
3.5 L V6 (2GR-FE) engine
Washer fluid tank
( P. 519)
Fuse boxes ( P. 541)
Engine oil filler cap ( P. 511)
Engine oil level dipstick ( P. 510)
Engine coolant reservoir ( P. 513) Battery
( P. 516)
Brake fluid reservoir ( P. 515)
Electric cooling fans
Condenser ( P. 514)
Radiator ( P. 514)1
2
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4
5
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5137-3. Do-it-yourself maintenance
7
Maintenance and care
HIGHLANDER_U (OM48F09U)
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” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
■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 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
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5147-3. Do-it-yourself maintenance
HIGHLANDER_U (OM48F09U)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is ex tremely dirty or you are not sure of
their condition, have yo ur vehicle inspected by your Toyota dealer.
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir cap and 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 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
WARNING
■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.

6328-2. Steps to take in an emergency
HIGHLANDER_U (OM48F09U)
●The needle of the engine coolant temperature gauge ( P. 9 2 )
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle sp eed 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 sufficient ly, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
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.Reservoir
“FULL”
“LOW”
Radiator cap
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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6338-2. Steps to take in an emergency
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When trouble arises
HIGHLANDER_U (OM48F09U)
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans oper ate and to check for coolant leaks
from the radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking the
fan sound and air flow. If it is difficult to check these, turn the air condition-
ing system on and off repeatedly. (The fans may not operate in freezing
temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fans are operating:
Have the vehicle in spected at the nearest Toyota dealer.
5
WARNING
■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.
● Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
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7

710Alphabetical index
HIGHLANDER_U (OM48F09U)
Panoramic moon roof ............. 185Jam protection function......... 187
Operation .............................. 185
Parking assist sensors (intuitive parking
assist)
*
Parking brake ........................... 240 Operation .............................. 240
Parking brake engaged
warning buzzer ................... 583
Parking brake engaged
warning message ............... 583
Parking lights ........................... 241 Light switch ........................... 241
Replacing light bulbs............. 545
Wattage ................................ 651
PCS
(Pre-Collision System) .......... 309Function ................................ 309
PCS OFF switch ................... 310
Warning light ......................... 570
Personal lights ......................... 449 Wattage ................................ 651
Power back door...................... 127
Power outlets ........................... 463
Power steering (Electric power steering) ...... 302
Warning light ......................... 570
Power windows........................ 177 Door lock linked
window operation ............... 179
Jam protection function......... 178
Operation .............................. 177
Window lock switch............... 178
Pre-Collision System (PCS) ...................................... 309
Function ................................ 309
PCS OFF switch ................... 310
Warning light ......................... 570 Radar cruise control (dynamic
radar cruise control) ............. 268
Radiator .................................... 514
Radio ........................................ 356
Rear automatic air conditioning system ............. 442
Rear manual air conditioning system.................................... 439
Rear personal lights ................ 449 Wattage ................................ 651
Rear seat .................................. 156
Adjustment............................ 156
Folding down ................ 158, 160
Rear seat entertainment
system
*
Rear side marker lights........... 241 Light switch ........................... 241
Replacing light bulbs ............ 545
Wattage ................................ 651
Rear sunshade......................... 466
Rear turn signal lights ............ 239
Replacing light bulbs ............ 545
Turn signal lever ................... 239
Wattage ................................ 651
Rear view mirror Inside rear view mirror .......... 173
Outside rear view mirrors ..... 175
Rear view monitor system
*.... 291
Rear window defogger......................... 428, 434
Rear window wiper .................. 257
Refueling .................................. 259 Capacity................................ 641
Fuel types ............................. 641
If the fuel filler door cannot be opened .............. 261
Opening the fuel tank cap..... 261
PR