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556
5-2. Steps to take in an emergency
PRIUS_OM_OM47857U_DVD_(U)
If your vehicle overheats
Correction procedures■ If the high coolant temperatur e warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The following may indicate that your vehicle is overheating.
●The high coolant temperature warning light ( P. 500) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle s peed does not increase.)
● “HYBRID SYSTEM OVERHEAT” ( P. 520) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
STEP 1
STEP 2
STEP 3
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5
When trouble arises
557
5-2. Steps to take in an emergency
PRIUS_OM_OM47857U_DVD_(U)
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system
on to check that the radiator cooling fans operate and to
check for coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Conf irm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system im mediately and contact your
Toyota dealer.
If the fans are operating: Have the vehicle inspected at the nearest Toyota dealer.
ITO43P111
STEP 4
ITO52P130
STEP 5
STEP 6
STEP7
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558 5-2. Steps to take in an emergency
PRIUS_OM_OM47857U_DVD_(U)
■If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) 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 “F” and “L” lines
on the reservoir.Reservoir
“F”
“L”
STEP 1
STEP 2
STEP 3
STEP 4
Page 630 of 640

630 Alphabetical index
PRIUS_OM_OM47857U_DVD_(U)
MaintenanceDo-it-yourself maintenance ....................... 416
General maintenance ............ 411
Maintenance data.................. 566
Maintenance requirements.... 408
Maintenance data ..................... 409
Meter Instrument panel light
control ................................. 219
Meters ................................... 216
Speed unit select button........ 218
Trip information display ......... 231
Micro dust and pollen filter ..... 334
Microphone
*............................ 393
Mirrors Inside rear view mirror........... 120
Side mirror heater ................. 350
Side mirrors ........................... 124
Vanity mirrors ........................ 369
MP3 disc
*
Multi-information display ........ 225
Navigation system (refer to “NAVIGATION
SYSTEM OWNER’S MANUAL”)
Noise from under vehicle ..........22
Odometer .................................. 225
Oil
Engine oil .............................. 426
Opener
Back door ................................95
Fuel filler door ....................... 134
Hood...................................... 419
Outside rear view mirrors Adjusting and folding ............. 124
Outside rear view mirror
defogger switch ..................... 350 Outside temperature
display .................................... 370
Overheating .............................. 556
Parking brake ........................... 214
Parking lights
Switch ................................... 252
PCS ........................................... 307
Personal lights
Switch ................................... 359
Wattage................................. 576
Power outlets ........................... 371
“POWER” switch ..................... 194
Power windows ........................ 126
Pre-collision system ................ 307
Radar cruise control system .................................... 272
Radiator .................................... 432
Radio
*
Radio data system*
RDS*
Rear seats Adjustment ............................ 104
Folding down......................... 105
Rear turn signal lights
Replacing light bulbs ............. 473
Wattage................................. 576
Rear view mirror .............. 120, 124
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ............................... 350
Rear window wiper and washer .................................... 264
Remote Air C onditioning
System.................................... 346
M
N
O
P
R