2015 TOYOTA PRIUS C engine overheat

15Pictorial index
PRIUS c_U (OM52E68U)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 241
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 214
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 214
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 492
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 398
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 497
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Checking/rotation/tire pressure warning system . . . . . . . . . P. 398
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 382
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 382
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 493
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 483
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 201
Front fog lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Front turn signal/parking lights . . . . . . . . . . . . . . . . . . . . . . P. 201
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 199
Stop/tail lights/rear side marker lights . . . . . . . . . . . . . . . . . P. 201
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 420, Watts: P. 498)
*: If equipped
8
9
10
11
12
13
14
15

932. Instrument cluster
2
Instrument cluster
PRIUS c_U (OM52E68U)
NOTICE
■To prevent damage to the engine and its components
This vehicle is not installed with an engine coolant temperature gauge.
Instead, is shown on the multi-information display. The engine may
be overheating if is shown on the multi-information display. In this
case, immediately stop the vehicle in a safe place. ( P. 483)

1694-1. Before driving
4
Driving
PRIUS c_U (OM52E68U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving the vehicle
●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,
however, power assist to the steering will be lost. This will make it more
difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 431
● Use engine braking (shift position B) to maintain a safe speed when driv-
ing down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 196)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers' arms, heads or other parts of their body
are not outside the vehicle.
● Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on y our vehicle are high-speed capability
tires or not before driving at such speeds.

1714-1. Before driving
4
Driving
PRIUS c_U (OM52E68U)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When the vehicle is stopped
●Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accel-
erate 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 stopped with the “READY” indicator is
illuminated, and 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.

2344-5. Using the driving support systems
PRIUS c_U (OM52E68U)■
Sounds and vibrations caused by the ABS, brake assist, TRAC, VSC and
hill-start assist control systems
Any of the following conditions may occur when the above systems are oper-
ating. None of these indicates that a malfunction has occurred.
●Vibrations may be felt through the vehicle body and steering.
● A motor sound may be heard after the vehicle comes to a stop.
● The brake pedal may pulsate slightly after the ABS is activated.
● The brake pedal may move down slightly after the ABS is activated.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
●Operating sound heard from engine co mpartment when the brake pedal is
operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when one or two min-
utes passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■ Reduced effectiven ess of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steer ing input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
●When the engine switch is turned to the “LOCK” position (vehicles without a
smart key system) or the “POWER” switch is turned off (vehicles with a
smart key system)
● If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases

544Alphabetical index
PRIUS c_U (OM52E68U)
Eco drive mode ........................ 197
Electric power steering ........... 232
Electronic keyIf the electronic key does not operate properly ........... 476
Emergency flashers Switch ................................... 430
Emergency, in case of If a warning buzzer sounds........................ 441, 449
If a warning light
turns on .............................. 441
If a warning message is displayed ............................ 449
If the electronic key does not operate properly ........... 476
If the hybrid system will
not start .............................. 473
If the shift lever cannot be shifted from P ................ 475
If the vehicle becomes stuck ................................... 487
If the vehicle 12-volt
battery is discharged .......... 478
If you have a flat tire ............ 462
If you lose your keys ............. 120
If you think something is wrong.................................. 440
If your vehicle has to be stopped in an
emergency.......................... 431
If your vehicle needs to be towed............................. 433
If your vehicle overheats ....... 483 Engine
Compartment ........................ 385
Engine switch ............... 182, 186
Hood ..................................... 382
How to start the hybrid
system ........................ 182, 186
Identification number ............ 491
If the hybrid system will not start .............................. 473
Ignition switch ............... 182, 186
Overheating .......................... 483
“POWER” switch................... 186
Engine coolant Capacity................................ 494
Checking............................... 389
Preparing and checking
before winter ...................... 241
Engine oil Capacity................................ 493
Checking............................... 386
Preparing and checking before winter ...................... 241
Engine/power control unit coolantCapacity................................ 494
Checking............................... 389
Preparing and checking before winter ...................... 241
Engine switch .................. 182, 186
EPS ........................................... 232
EV drive mode ......................... 193
Event data recorder................... 10
Exclusive jump starting terminal .................... 478
E

547Alphabetical index
PRIUS c_U (OM52E68U)
MaintenanceDo-it-yourself maintenance....................... 379
Emission inspection and maintenance (I/M)
programs ............................ 378
General maintenance ........... 375
Maintenance data ................. 490
Maintenance requirements ... 372
Meter Instrument panel light
control................................... 92
Meters ..................................... 91
Microphone .............................. 298
Mirrors Inside rear view mirror .......... 155
Outside rear view mirror defogger ............................. 342
Outside rear view mirrors...... 156
Vanity mirrors........................ 357
Moon roof ................................. 162
MP3 disc ................................... 266
Multi-information display .......... 94
Navigation system
*
Noise from under vehicle............ 8 Odometer ................................... 97
Oil
Engine oil .............................. 493
Opener Back door ............................. 133
Fuel filler door ....................... 214
Hood ..................................... 382
Outside rear view mirrors Adjusting and folding ............ 156
Defogger ............................... 342
Outside temperature
display.................................... 357
Overheating, Hybrid system.................................... 483
Parking brake........................... 200
Parking lights Replacing light bulbs ............ 424
Switch ................................... 201
Wattage ................................ 498
Personal lights Switch ................................... 350
Wattage ................................ 498
Power outlet ............................. 359
“POWER” switch ..................... 186
Power windows ....................... 158
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*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.