2014 TOYOTA PRIUS PLUS coolant temperature

4447-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
If your vehicle overheats
■If the high coolant temperature warning light comes on or
flashesStop the vehicle in a safe place and turn off the air conditioning
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
any authorized Toyota dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
The following may indicate that your vehicle is overheating.● The high coolant temperature warning light ( →P. 380) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
● Vehicles without multi-information display: The hybrid system
overheat warning light ( →P. 380) comes on.
● Vehicles with multi-information display: The warning message
indicating overheat is shown on the multi-information display.
(→ P. 391)
● Steam comes out from under the hood.
Correction procedures
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4457-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
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When trouble arises
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL” line
“LOW” line
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 condi tioning 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 con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
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4477-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
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When trouble arises
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
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.
● After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant could spray out.
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482Alphabetical index
PRIUS +_OM_OM47888E_(EE)
Emergency, in case ofIf a warning buzzer sounds ... 376
If a warning light turns on ...... 376
If a warning message is displayed ............................ 388
If the 12-volt battery is discharged .......................... 439
If the electronic key does not operate properly ................. 437
If the hybrid system will not start..................................... 435
If you have a flat tire...... 404, 418
If you lose your keys ............. 141
If you think something is
wrong.................................. 375
If your vehicle becomes stuck ................................... 449
If your vehicle has to be
stopped in an emergency ... 369
If your vehicle needs to be towed .................................. 370
If your vehicle overheats ....... 444
Energy monitor ........................ 131 Engine
Accessory mode ................... 203
Compartment ........................ 317
Engine switch........................ 201
Exhaust gas precautions ........ 80
Hood ..................................... 313
How to start the hybrid system ................................ 201
Identification number ............ 454
If the hybrid system will not start .................................... 435
If your vehicle has to be
stopped in an emergency ... 369
Ignition switch (power switch) .................... 201
Overheating .......................... 444
Power switch......................... 201
Engine coolant
Capacity ................................ 458
Checking ............................... 323
Preparing and checking before winter....................... 265
Engine coolant temperature warning light .......................... 380

487Alphabetical index
PRIUS +_OM_OM47888E_(EE)
Navigation system*
Odometer .................................. 111
OilEngine oil .............................. 455
Opener Fuel filler door ....................... 226
Hood ..................................... 313
Outside rear view mirrors ....... 184 Adjustment ............................ 184
Folding .................................. 184
Outside rear view mirror defoggers............................ 273
Outside temperature display .................................... 275
Overhead console.................... 287
Overheating .............................. 444
Overheating, Engine ................ 444 P position switch ..................... 209
Parking brake
Operation .............................. 214
Parking brake engaged warning buzzer ................... 382
Parking lock ............................. 209
PCS (Pre-Crash Safety system) Function ................................ 254
PCS switch ........................... 255
Warning light ......................... 378
Warning message ......... 391, 392
Personal lights ......................... 280 Switch ................................... 281
Wattage ................................ 462
Pollen removal mode .............. 273
Power control unit coolant
Capacity ................................ 458
Checking ............................... 323
Preparing and checking before winter....................... 265
Radiator ................................ 324
Power outlets ........................... 294
Power steering (Electric Power Steering system) ....... 248Warning light ......................... 377
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*: Refer to the “Navigation and multimedia system Owner’s Manual”.

492Alphabetical index
PRIUS +_OM_OM47888E_(EE)
USB memory*
USB port*
Vanity lightsVanity lights........................... 292
Wattage................................. 462
Vanity mirrors .......................... 292 Vanity lights........................... 292
Wattage................................. 462
Vehicle identification number ................................... 453
Vehicle Stability Control (VSC)....................................... 248
VSC (Vehicle Stability Control) .................................. 248
Warning buzzers Approach warning ................. 238
Brake system ........................ 376
Downshifting ......................... 210
Driver’s seat belt reminder .... 381
Front passenger’s seat belt reminder ............................. 381
Open door ............................. 380
Pre-crash warning ................. 254
Radar cruise control .............. 238
Seat belt reminder................. 381 Warning lights
ABS....................................... 377
Automatic headlight leveling system ................................ 380
Brake system ........................ 376
Charging system ................... 376
Cruise control........................ 380
Driver’s seat belt reminder .... 381
Electronic engine control
system ................................ 377
Electric power steering ......... 377
Front passenger’s seat belt reminder ............................. 381
Go to service......................... 382
High coolant temperature ..... 380
Hybrid battery indicator ......... 379
Hybrid system ....................... 377
Hybrid system overheat ........ 380
LED headlight ....................... 379
Low engine oil pressure ........ 377
Low fuel level ........................ 380
Low hybrid battery (traction battery) ................. 380
Malfunction indicator lamp .... 377
Master warning light.............. 381
Open door ............................. 380
Parking lock system ...... 378, 379
P position request
indicator.............................. 379
PCS ...................................... 378
Rear passenger’s seat belt
reminder ............................. 381
Seat belt reminder light ......... 381
Slip indicator ......................... 378
SRS ...................................... 377
Tire pressure......................... 381
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