2019 TOYOTA PRIUS C engine overheat

TABLE OF CONTENTS6
PRIUS c_U7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 398
Cleaning and protecting the vehicle interior ........... 401
7-2. Maintenance Maintenance requirements ................... 407
General maintenance ........ 410
Emission inspection and maintenance (I/M)
programs ......................... 413
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 414
Hood.................................. 417
Positioning a floor jack ...... 419
Engine compartment ......... 420
12-volt battery ................... 429
Tires .................................. 433
Tire inflation pressure........ 442
Wheels .............................. 445
Air conditioning filter .......... 447
Wireless remote control/ electronic key battery ...... 449
Checking and replacing fuses ................ 452
Light bulbs ......................... 456 8-1. Essential information
Emergency flashers ........... 466
If your vehicle has to be stopped in
an emergency.................. 467
8-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 469
If you think something is wrong ........................... 476
If a warning light turns on or a warning buzzer
sounds ............................. 477
If a warning message is displayed...................... 485
If you have a flat tire .......... 502
If the hybrid system will not start ..................... 515
If the electronic key does not operate properly ........ 517
If the vehicle 12-volt battery is discharged ....... 519
If your vehicle overheats......................... 526
If the vehicle becomes stuck ................ 530
7Maintenance and care8When trouble arises

17Pictorial index
PRIUS c_UWindshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 212
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 272
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 536
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . P. 433
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 541
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Checking/rotation/tire pressur e warning system . . . . . . . . .P. 433
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 502
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 537
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 526
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 206
Parking lights/front turn signal lights . . . . . . . . . . . . . P. 204, 206
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Front fog lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
Stop lights/tail lights /rear side marker lights/
rear turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204, 206
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 206
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 456, Watts: P. 542)
*: If equipped
8
9
10
11
12
13
14
15

1002. Instrument cluster
PRIUS c_U
NOTICE
■To prevent damage to the engine and its components
This vehicle is not installed with an engine coolant temperatur e gauge.
Instead, is shown on the multi-information display. The engine may
be overheating if is shown on the multi-information display. I n this
case, immediately stop the vehicle in a safe place. ( P. 526)

1734-1. Before driving
4
Driving
PRIUS c_U
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. Turni ng the hybrid
system off while driving will not cause loss of steering or bra king control,
however, power assist to the steering will be lost. This will m ake it more
difficult to steer smoothly, so you should pull over and stop t he 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. 467
● 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. 200)
● 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 sp eed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicl e has high-
speed capability tires. Driving over 85 mph (140 km/h) may resu lt in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed c apability
tires or not before driving at such speeds.

1754-1. Before driving
4
Driving
PRIUS c_U
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 t ime.
If such a situation cannot be avoided, park the vehicle in an o pen 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” indic ator is
illuminated, and apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent ac cidents 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 m ay cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

2664-6. Using the driving support systems
PRIUS c_U■
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 the engine compartment when the brak e pedal
is operated.
● Motor sound of the brake system heard from the front part of th e vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when one or t wo min-
utes passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring so und) may be
heard. This does not indicate a malfunction.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result. Should thi s 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.
■ Electric power steering system wa rning light (warning buzzer)
P. 481
■ 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 power 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 wh en vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-e nabling will
not occur when vehicle speed increases.

588Alphabetical index
PRIUS c_U
Eco drive mode ........................ 201
Electric power steering ........... 263
Electronic keyIf the electronic key does not operate properly ........... 517
Emergency flashers Switch ................................... 466
Emergency, in case of
If a warning buzzer sounds ........................ 477, 485
If a warning light
turns on .............................. 477
If a warning message is displayed ............................ 485
If the electronic key does not operate properly ........... 517
If the hybrid system will
not start .............................. 515
If the vehicle becomes stuck ................................... 530
If the vehicle 12-volt battery is discharged .......... 519
If you have a flat tire ............ 502
If you lose your keys ............. 120
If you think something is
wrong.................................. 476
If your vehicle has to
be stopped in an
emergency.......................... 467
If your vehicle needs to
be towed ............................. 469
If your vehicle overheats ....... 526 Engine
Compartment ........................ 420
Hood ..................................... 417
How to start the hybrid system ....... ................. 186, 190
Identification number ............ 535
If the hybrid system will not start .............................. 515
Ignition switch ............... 186, 190
Overheating .......................... 526
Power switch ................ 186, 190
Engine coolant Capacity................................ 538
Checking............................... 424
Preparing and checking before winter ...................... 272
Engine oil
Capacity................................ 537
Checking............................... 421
Preparing and checking before winter ...................... 272
Engine/power control unit coolant
Capacity................................ 538
Checking............................... 424
Preparing and checking before winter ...................... 272
EPS ........................................... 263
EV drive mode ......................... 197
Event data recorder................... 11
Exclusive jump starting terminal .................... 519
E

591Alphabetical index
PRIUS c_U
MaintenanceDo-it-yourself
maintenance ....................... 414
Emission inspection and maintenance (I/M)
programs ............................ 413
General maintenance ........... 410
Maintenance data ................. 534
Maintenance requirements ... 407
Meter Instrument panel light
control................................... 99
Meters ..................................... 97
Microphone .............................. 331
Mirrors
Inside rear view mirror .......... 158
Outside rear view mirror defogger ............................. 376
Outside rear view mirrors...... 159
Vanity mirrors........................ 391
Moon roof ................................. 165
MP3 disc ................................... 298
Multi-information display ........ 101
Navigation system
*
Noise from under vehicle............ 8 Odometer ................................... 98
Oil
Engine oil .............................. 537
Opener Back door ............................. 134
Fuel filler door ....................... 219
Hood ..................................... 417
Outside rear view mirrors
Adjusting and folding ............ 159
Defogger ............................... 376
Outside temperature
display...................................... 99
Overheating, Hybrid system.................................... 526
Parking brake........................... 205
Parking lights Replacing light bulbs ............ 458
Switch ................................... 206
Wattage ................................ 542
PCS (Pre-Collision system) .... 229 PCS (Pre-Collision
system) switch...... .............. 232
Warning light......................... 479
Personal lights Switch ................................... 384
Wattage ................................ 542
Power outlet ............................. 392
Power switch ................... 186, 190
Power windows ....................... 161
Pre-Collision system (PCS) .... 229 PCS (Pre-Collision
system) switch...... .............. 232
Warning light......................... 479
M
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*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.