2016 TOYOTA PRIUS coolant temperature

7188-2. Steps to take in an emergency
PRIUS_OM_OM47A29U_(U)
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 th e 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 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 your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
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7208-2. Steps to take in an emergency
PRIUS_OM_OM47A29U_(U)
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check if “Hybrid System
Overheated” is shown on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the message appears again frequently, contact your Toyota
dealer.
WARNING
■ To prevent an accident or injury 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 “Accessory”,
“Ignition ON” or mileage display ( P. 108) on the multi-information display
and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fans 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 caps while the hybrid system and radi-
ator are hot.
High temperature steam or coolant could spray out.
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789Alphabetical index
PRIUS_OM_OM47A29U_(U)
High coolant temperature
warning light .......................... 657
High mounted stoplight Replacing .............................. 642
Hill-start assist control............ 405
Hood ......................................... 588
Hooks Cargo hooks ......................... 534
Coat hooks............................ 552
Grocery bag hook ................. 535
Retaining hooks (floor mat)..... 26
Horn .......................................... 192
Hybrid battery (traction battery) Location .................................. 82
Specification ......................... 729
Hybrid battery (traction battery)
air intake vent .......................... 83
Hybrid system ............................ 78 Brake Override System......... 209
Drive-Start Control ................ 210
Emergency shut off system ......... ......................... 83
Energy monitor/consumption
screen......................... 117, 153
EV drive mode ...................... 231
High voltage components ....... 82
Hybrid System Indicator........ 119
Hybrid system precautions ..... 82
Hybrid vehicle driving tips ..... 411
If the hybrid system will not start .............................. 706
Overheating .......................... 717
Power switch......................... 225
Regenerative braking.............. 80
Starting the hybrid system .... 225
Vehicle proximity notification system ................ 79
Hybrid System Indicator ......... 119
Hybrid transmission ................ 234 I/M test ...................................... 584
Identification
Engine .................................. 728
Vehicle .................................. 727
Ignition switch
(Power switch)....................... 225Auto power off function ......... 227
Changing the power switch modes ..................... 227
If your vehicle has to be stopped in an emergency ... 647
Starting the hybrid system .... 225
Illuminated entry system ........ 527
Immobilizer system ................... 89
Indicators ................................. 100
Initialization Intelligent Clearance
Sonar.................................. 356
Items to initialize ................... 760
Maintenance data ................. 579
Moon roof ............................. 204
Power windows..................... 199
S-APGS (Simple Advanced Parking Guidance
System) .............................. 385
Tire pressure warning system .......... ...................... 608
Inside rear view mirror ............ 194
Instrument cluster light control ...................................... 94
Intelligent Clearance Sonar .... 346
Interior lights ........................... 525 Switch ........................... 526, 527
Wattage ................................ 736
Intuitive parking assist ........... 335I

792Alphabetical index
PRIUS_OM_OM47A29U_(U)
Navigation system*
Noise from under vehicle............ 8
Odometer.................................. 109
OilEngine oil .............................. 730
Opener
Fuel filler door ....................... 264
Hood ..................................... 588
Outside rear view mirrors ....... 196
Adjustment ............................ 196
Blind Spot Monitor ................ 322
Folding .................................. 196
Outside rear view mirror defoggers ........................... 517
Outside temperature
display .................................... 108
Overhead console ................... 532
Overheating.............................. 717
Overheating, Engine................ 717 P position switch ..................... 235
Panic mode .............................. 161
Parking assist sensors
Intelligent Clearance Sonar.................................. 346
Intuitive parking assist .......... 335
S-APGS (Simple Advanced Parking Guidance
System) .............................. 359
Parking brake Operation .............................. 241
Parking brake engaged
warning buzzer ................... 241
Parking lights
Light switch ........................... 242
Replacing light bulbs .... 638, 642
Wattage ................................ 736
Parking lock ............................. 235
PCS (Pre-Collision System) Enabling/disabling the
system .......... ...................... 279
Function ................................ 275
Warning light......................... 656
Personal lights......................... 525 Switch ................................... 526
Wattage ................................ 736
Power control unit coolant
Capacity................................ 732
Checking............................... 595
Preparing and checking before winter ...................... 414
Radiator ................................ 597
Power outlets ........................... 543
Power steering (Electric
Power Steering system) ....... 404Warning light......................... 656
N
O
P

798Alphabetical index
PRIUS_OM_OM47A29U_(U)
Warning buzzersBlind Spot Monitor (BSM) ..... 322
Brake system ....... ................. 655
Downshifting ......................... 236
Lane departure alert ............. 290
Open door ..................... 169, 657
Open moon roof .................... 204
Parking assist sensors ............... 335, 346, 359
Pre-Collision warning ............ 275
Radar cruise control.............. 309
Seat belt reminder ................ 658
Warning lights ABS....................................... 656
Brake Override System......... 658
Brake system ....... ................. 655
Charging system ................... 655
Drive-Start Control ................ 658
Driver’s seat belt reminder ............................. 658
Electronic engine control system ......... ....................... 655
Electric power steering ......... 656
Front passenger’s seat
belt reminder ...................... 658
High coolant temperature ..... 657
ICS OFF indicator ................. 657
Intelligent Clearance Sonar .................................. 658
LDA system .......................... 659
Low engine oil pressure ........ 655
Low fuel level ........................ 657
Malfunction indicator lamp .... 655
Master warning light.............. 658
Open door ............................. 657
PCS ...................................... 656
Seat belt reminder light ......... 658
Slip indicator ......................... 657
SRS ...................................... 656
Tire pressure......................... 658 Warning messages.................. 665
Warning reflector..................... 536
Washer
Checking............................... 603
Preparing and checking before winter ...................... 414
Switch ........................... 254, 260
Washing and waxing ............... 568
Water-repellent coating .......... 569
Weights Cargo capacity...................... 222
Load limits ............................ 726
What to do if... (Troubleshooting) ................. 778
Wheels ...................................... 618 Replacing wheels ................. 673
Size....................................... 734
Window glasses ...................... 198
Window lock switch ................ 198
Windows Power windows..................... 198
Rear window defogger.......... 517
Washer ......................... 254, 260
Windshield wipers ................... 254 Handling the wiper arms ....... 573
Winter driving tips ................... 414
Wiper rubber replacement ...... 624
Wireless charger ..................... 544
Wireless communication ........ 457
Wireless remote control key .......................................... 160Locking/Unlocking ................ 160
Panic mode........................... 161
Replacing the battery............ 628
WMA disc ................................. 440
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