2012 TOYOTA HIGHLANDER HYBRID radiator

470 4-3. Do-it-yourself maintenance
Radiator and condenserCheck the radiators and condens er, and clear away any foreign
objects.
If either of the above parts are ex tremely dirty or you are not sure of
their condition, have your vehicl e checked by your Toyota dealer.
CAUTION
■When the hybrid system is hot
Do not touch the radiators or condenser as they may be hot and may cause
burns.
■ When the electric cooling fan is operating
Do not touch the engine compartment.
Vehicles without smart key system: The electric cooling fans may keep rotat-
ing for about 3 minutes after the engine switch is turned to the “LOCK” posi-
tion.
With the engine switch in the “ON” position, the electric cooling fans may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. Be sure the engine switch is in the “LOCK” position when
working near the electric cooling fan or radiator grille.
Vehicles with smart key system: The electric cooling fan may keep rotating
for about 3 minutes after the “POWER” switch is OFF.
With the “POWER” switch in ON mode, the electric cooling fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. Be sure the “POWER” switch is OFF when working near the electric
cooling fan or radiator grille.

5
When trouble arises
563
5-2. Steps to take in an emergency
After the hybrid system has
cooled down, check the engine
coolant level and inspect the
cooling system for leaks.
If the engine compartment cover
needs to be removed. (
P. 463)
Engine coolant reservoir
Radiator
If necessary, add engine coolant
up to the “FULL” line.
Water can be used in an emer-
gency if engine coolant is unavail-
able. ( P. 577)
STEP4
STEP5

564 5-2. Steps to take in an emergency
■If “Hybrid System Overheat” is shown on the multi-informa-
tion display
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.
Check if the cooling fans are operating.
If the fans are operating: Wait until “Hybrid System Overheat” disappears and then
stop the hybrid system.
If the message does not disapp ear, call your Toyota dealer.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
If the engine compartment cover
needs to be removed. (P. 463)
Power control unit coolant res-
ervoir
Power control unit coolant
radiator
If necessary, add power control
unit coolant up to the “FULL”
line.
Water can be used in an emer-
gency if power control unit cool-
ant is unavailable. ( P. 577)
STEP1
STEP2
STEP3
STEP4
STEP5

628 Alphabetical index
Odometer .................................. 196
Off-road precautions ............... 241
OilEngine oil .............................. 464
Opener
Back door ................................70
Fuel filler door ....................... 118
Glass hatch .............................79
Hood...................................... 458
Outside rear view mirrors Adjusting and folding ............. 108
Outside temperature display .................................... 203
Overhead console .................... 407
Overheating, Hybr id system ... 562
Parking brake ........................... 194
Parking lights Replacing light bulbs ............. 510
Switch.................................... 213
Wattage ................................. 583
Personal/interior lights
Switch.................................... 402
Wattage ................................. 583
Power outlet ............................. 420
Power switch ............................ 179
Power windows ........................ 110 Radiator .................................... 470
Radio ......................................... 308
Rear automatic air
conditioning system ............. 296
Rear manual air
conditioning system ............. 293
Rear seat Adjustment .............................. 86
Folding down second
seatback ............................... 87
Folding down third
seatback ............................... 89
Removing the second center seat ............................ 90
Stowing the second center seat ............................ 90
Rear seat entertainment
system*
Rear turn signal lights Replacing light bulbs ............. 510
Wattage................................. 583
Rear view mirror Compass ............................... 436
Rear view monitor system ...... 230
Rear window defogger ............ 300
Rear window wiper .................. 224
Replacing Fuses .................................... 497
Key battery ............................ 494
Light bulbs............................. 510
Tires ...................................... 539
Reporting safety defects for
U.S. owners ............................ 606O
P
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