2019 TOYOTA PRIUS C cooling

5298-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U
WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the ho od until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● After the hybrid system has been turned off, check that on the multi-
information display and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may au tomati-
cally start, or the cooling fan may suddenly operate even if th e gasoline
engine stops. Do not touch or approach rotating parts such as t he 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 radiator cap while the hybrid system and radi ator are
hot.
Serious injuries, such as burns, may result from hot coolant an d steam
released under pressure.
NOTICE
■ When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sa nd or dust
etc.).
● Do not use any coolant additive.

5389-1. Specifications
PRIUS c_U
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The 20 in 0W-20 indicates the vi scosity characteristic of the oil
when the oil is at high temperature. An oil with a higher visco sity
(one with a higher value) may be better suited if the vehicle i s
operated at high speeds, or un der extreme load conditions.
How to read oil container label:
The International Lubricant
Specification Advisory Commit-
tee (ILSAC) Certification Mark
is added to some oil containers
to help you select the oil you
should use.
Cooling system
Capacity Gasoline engine
Power control unit 5.6 qt. (5.3 L, 4.7 Imp. qt.)
1.7 qt. (1.6 L, 1.4 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain water alone.

587Alphabetical index
PRIUS c_U
Child safetyAirbag precautions .................. 42
Child-protectors .................... 129
Child restraint system ............. 58
How your child should
wear the seat belt ................. 34
Installing child restraints ......... 62
Moon roof precautions .......... 167
Power window lock switch .... 161
Power window precautions ... 164
Removed key battery precautions ......................... 451
Seat belt extender precautions ........................... 38
Seat belt precautions .............. 36
Seat heater precautions........ 382
12-volt battery precautions ................. 431, 525
Cleaning Exterior ................................. 398
Interior................................... 401
Seat belts .............................. 404
Clock ......................................... 106
Coat hooks ............................... 393
Condenser ................................ 426
Console box ............................. 387
Cooling system
Hybrid system overheating ... 526
Cord hook................................. 282
Cruise control .......................... 249
Cup holders.............................. 389
Curtain shield airbags ............... 40
Customizable features ............ 558 Daytime running light
system.................................... 208
Defogger Rear window ......................... 376
Side mirrors .......................... 376
Dimension ................................ 534
Dinghy towing.......................... 185
Display Energy flow ........................... 110
Multi-information display ....... 101
Trip information..................... 101
Warning message................. 485
Do-it-yourself maintenance .... 414
Doors Back door ............................. 134
Door lock .............................. 128
Door windows ....................... 161
Rear door child protector ...... 129
Side doors ............................ 125
Side mirrors .......................... 159
Driver’s seat belt reminder light ........................................ 479
Driving
Break-in tips.......................... 172
Correct posture ....................... 28
Procedures ........................... 170
Winter driving tips ................. 272D