engine overheat TOYOTA PRIUS PLUS 2012 Owners Manual

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PRIUS +_OM_OM47821E_(EE)
4-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ........... 382
Cleaning and protecting
the vehicle interior ............ 387
4-2. Maintenance
Maintenance
requirements..................... 390
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ....................... 393
Hood ................................... 397
Positioning a floor jack ........ 400
Engine compartment........... 403
12-volt battery ..................... 413
Tires .................................... 419
Tire inflation pressure ......... 422
Wheels ................................ 425
Air conditioning filter ........... 427
Electronic key battery ......... 430
Checking and replacing
fuses ................................. 433
Light bulbs .......................... 4455-1. Essential information
Emergency flashers ........... 460
If your vehicle needs to be
towed ............................... 461
If you think something
is wrong............................ 468
5-2. Steps to take in an emergency
If a warning light turns
on or a warning
buzzer sounds.................. 469
If you have a flat tire
(vehicles with
spare tire) ......................... 482
If you have a flat tire
(vehicles without
a spare tire) ...................... 494
If the hybrid system
will not start ...................... 516
If you lose your keys .......... 518
If the electronic key does not
operate properly ............... 519
If the 12-volt battery is
discharged ....................... 522
If your vehicle overheats .... 528
If the vehicle becomes
stuck................................. 534
If your vehicle has
to be stopped in
an emergency .................. 536
4Maintenance and care5When trouble arises

206 2-1. Driving procedures
PRIUS +_OM_OM47821E_(EE)
CAUTION
Do not shift the shift position to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Do not shift the shift position to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Do not shift the shift position to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Moving the shift position to N while the vehicle is moving will disengage
the hybrid system. Engine braking is not available with the hybrid system
disengaged.
During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
but the power assist to these systems will be lost. This will make it more
difficult to steer and brake, so you should pull over and stop the vehicle as
soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 536
Use engine braking (shift position B instead of shift position D) to maintain
a safe speed when driving down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (P. 224)

208 2-1. Driving procedures
PRIUS +_OM_OM47821E_(EE)
CAUTION
If you hear a squealing or scraping noise (brake pad wear indicators)
Have any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional check and replace the brake pads as soon as possi-
ble.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
When the vehicle is stopped
Do not depress the accelerator pedal unnecessarily.
If the vehicle is in any shift position other than P or N, the vehicle may
accelerate suddenly and unexpectedly, causing an accident.
Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and check that exhaust fumes do not enter the vehicle interior.
In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while the “READY” indicator is on. Apply the
parking brake as necessary.
If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

247 2-2. Instrument cluster
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When driving
PRIUS +_OM_OM47821E_(EE)
Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even
when vehicle operation and driving conditions are the same.
Brightness of the instrument cluster light
If the headlight switch is turned to ON while the surrounding area is dark, the
instrument cluster lights will dim.
When disconnecting and reconnecting 12-volt battery terminals
The average fuel consumption and cruising range will be reset.
NOTICE
To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning light
comes on or flashes. In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 528)
The trip information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.

564 Alphabetical index
PRIUS +_OM_OM47821E_(EE)
Bluetooth®*
Bottle holders........................... 357
Brake
Fluid ...................................... 549
Parking brake ........................ 234
Brake assist.............................. 298
Break-in tips ............................. 203
Brightness control
Instrument cluster light
control ................................. 239
Camera
*
Care
Exterior.................................. 382
Interior ................................... 387
Seat belts .............................. 388
Cargo hooks ............................. 377
CD player
*
Chains ....................................... 321
Child restraint system
Baby seats, definition ............ 173
Baby seats, installation ......... 185
Child seats, definition ............ 173
Child seats,
installation........................... 185
Installing child restraint system
with ISOFIX rigid
anchors ............................... 191
Installing child restraint system
with seat belts ..................... 185
Installing child restraint system
with top strap ...................... 193
Junior seats, definition .......... 173
Junior seats,
installation........................... 185Child safety
Airbag precautions ................ 165
Back door precautions ............ 99
Child restraint system ........... 173
Child-protectors ...................... 95
How your child should wear
the seat belt ........................ 126
Installing
child restraints .................... 184
Panoramic roof
precautions ......................... 371
Power window lock switch .... 135
Power window precautions ... 138
Removed electronic key battery
precautions ......................... 432
Seat belt precautions ............ 127
Seat heater precautions........ 368
12-volt battery precautions ... 416
Child-protectors......................... 95
Cleaning
Exterior ................................. 382
Interior................................... 387
Seat belts .............................. 388
Clock ......................................... 364
Condenser ................................ 410
Console box ............................. 354
Cooling system
Engine overheating ............... 528
Hybrid system overheating ... 528
Cruise control
Cruise control........................ 275
Dynamic radar cruise
control................................. 280
Cup holders.............................. 355
Curtain shield airbags ............. 158
Customizable features ............ 554
C

566 Alphabetical index
PRIUS +_OM_OM47821E_(EE)
Engine
Accessory mode ................... 216
Compartment ........................ 403
Hood ..................................... 397
How to start the hybrid
system ................................ 214
Identification number............. 541
If the hybrid system will not
start..................................... 516
Ignition switch ....................... 214
Overheating .......................... 528
“POWER” switch ................... 214
Engine coolant
Capacity ................................ 547
Checking ............................... 408
Preparing and checking
before winter ....................... 319
Engine/power control unit coolant
Capacity ................................ 547
Checking ............................... 408
Preparing and checking
before winter ....................... 319
Engine oil
Capacity ................................ 543
Checking ............................... 404
Preparing and checking
before winter ....................... 319
EPS............................................ 298
EV drive mode switch.............. 221Floor mats ................................ 375
Fluid
Brake .................................... 549
Washer ................................. 411
Fog lights
Replacing light bulbs............. 445
Switch ................................... 266
Wattage ................................ 551
Foot lights ................................ 347
Front fog lights
Replacing light bulbs............. 445
Switch ................................... 266
Wattage ................................ 551
Front passenger’s seat belt
reminder light ........................ 477
Front position lights
Switch ................................... 261
Front seats
Adjustment ............................ 103
Flattening seatbacks ............. 104
Front turn signal lights
Replacing light bulbs............. 445
Switch ................................... 233
Wattage ................................ 551
Fuel
Capacity ................................ 542
Fuel gauge ............................ 236
Information ............................ 552
Refueling............................... 139
Type ...................................... 552
Fuel door .................................. 139
Fuel filler door.......................... 139
Fuses ........................................ 433F

568 Alphabetical index
PRIUS +_OM_OM47821E_(EE)
License plate lights
Replacing light bulbs ............. 445
Wattage................................. 551
Light bulbs
Replacing .............................. 445
Wattage................................. 551
Lights
Emergency flasher switch ..... 460
Fog light switch ..................... 266
Foot lights ............................. 347
Hazard light switch ................ 460
Headlight switch .................... 261
Interior lights ......................... 348
Personal lights ...................... 349
Replacing light bulbs ............. 445
Shift lever lighting.................. 347
Turn signal lever ................... 233
Turn signal light switch.......... 233
Vanity lights........................... 363
Wattage................................. 551
Luggage compartment light
Switch ..................................... 98
Wattage................................. 551
Luggage cover ......................... 379
Maintenance
Do-it-yourself maintenance ... 393
Maintenance data ................. 540
Maintenance requirements ... 390Meter
Instrument cluster light
control................................. 239
Meters ................................... 236
Speed unit select button ....... 238
Trip information display......... 241
Microphone
*
Mirrors
Inside rear view mirror .......... 131
Side mirror heater ................. 341
Side mirrors .......................... 133
Vanity mirrors........................ 363
MP3 disc
*
Navigation system
(refer to “Navigation
System Owner’s Manual”)
Odometer.................................. 237
Oil
Engine oil .............................. 404
Opener
Back door................................ 97
Fuel filler door ....................... 139
Hood ..................................... 397
Outside rear view mirrors
Adjusting and folding ............ 133
Outside rear view mirror
defogger switch..................... 341
Outside temperature
display .................................... 326
Overhead console ................... 358
Overheating.............................. 528
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O

572 Alphabetical index
PRIUS +_OM_OM47821E_(EE)
USB port*
Vanity lights
Vanity lights........................... 363
Wattage................................. 551
Vanity mirrors .......................... 363
Vehicle identification
number ................................... 541
Vehicle stability control .......... 298
VSC ........................................... 298
Warning buzzers
Brake system ........................ 469
Open door ............................ 476
Seat belt reminder................. 477Warning lights
Anti-lock brake system
(ABS) .................................. 471
Automatic headlight leveling
system ................................ 474
Brake system ................ 469, 472
Charging system ................... 470
Cruise control........................ 474
Electric power steering
system ................................ 471
High coolant temperature ..... 470
Hybrid battery indicator
light ..................................... 473
Hybrid system ....................... 470
Hybrid system overheat ........ 475
LED headlights ..................... 474
Low engine oil pressure ........ 470
Low fuel level ........................ 476
Low hybrid battery
(traction battery) ................. 476
Malfunction indicator lamp .... 471
Open door ............................. 476
Parking lock system .............. 473
P position request ................. 475
Pre-crash safety system ....... 472
Radar cruise control.............. 474
Seat belt warning light .......... 477
Slip indicator ......................... 472
Smart entry & start system ... 479
SRS airbags.......................... 471
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