oil temperature TOYOTA PRIUS C 2020 Owners Manual

2284-5. Toyota Safety Sense C
PRIUS c_U
WARNING
■To avoid malfunction of the front sensor
Observe the following precautions.
Otherwise, the front sensor may not operate properly, possibly leading to an
accident resulting in death or serious injury.
● Keep the windshield clean at all times. If the windshield is di rty or covered
with an oily film, water droplets, snow, etc., clear the windshield. If the
inner side of the windshield in front of the front sensor is dirty, contact your
Toyota dealer.
● If there is a large difference in temperature between the inside and outside
of the vehicle, such as in winter, the windshield is likely to fog up easily. If
the part of the windshield in front of the front sensor is fogg ed up or cov-
ered with condensation or ice, the PCS warning light may illumi nate and
the system may be temporarily disabled. In this case, use the w indshield
defogger to remove the fog, etc. ( P. 378)
● If the area of the windshield in front of the front sensor is covered with
water droplets, use the windshield wipers to remove them.
If the water droplets are not sufficiently removed, the performance of the
front sensor may be reduced.
●Do not attach objects, such as stickers,
transparent stickers, etc., and so forth,
to the outer side of the windshield in
front of the front sensor (shaded area in
the illustration).
A: From the top of the windshield to
approximately 4.0 in. (10 cm) below the
bottom of the front sensor
B: Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. (10 cm) to the
right and left from the center of the front
sensor)
● Do not install or attach anything to the
inner side of the windshield under the
front sensor (shaded area in the illustra-
tion).
A: Approximately 4.0 in. (10 cm) (Start-
ing from the bottom of the front sensor)
B: Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. (10 cm) to the
right and left from the center of the front
sensor)

4177-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
Washer fluid (P. 430)
• Water or washer fluid containing antifreeze
(for winter use)
• Funnel (used only for adding water or washer
fluid)
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions:
■When working on the engine compartment
● Vehicles without a smart key system: Make sure that the power s witch is in
the “LOCK” position and the “READY” indicator is off.
Vehicles with a smart key system: Make sure that the indicator on the
power switch and the “READY” indicator are both off.
● Keep hands, clothing and tools away from the moving fan and eng ine
drive belt.
● Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
● Do not leave anything that may burn easily, such as paper and r ags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■ When working near the electric cooling fan or radiator grille
Vehicles without a smart key system: The electric cooling fan m ay keep
rotating for about 3 minutes even after the power switch is tur ned to the
“LOCK” position.
With the power switch in the “ON” position, the electric coolin g fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. Be sure the power switch is in the “LOCK” position when
working near the electric cooling fan or radiator grille.
Vehicles with a smart key system: The electric cooling fan may keep rotat-
ing for about 3 minutes even after the power switch is off.
With the power switch in ON mode, the electric cooling fan may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. Be sure the power switch is off when working near the electric cool-
ing fan or radiator grille.
ItemsCheck points

4237-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oil
Park the vehicle on level ground. After warming up the engine
and turning off the hybrid system, wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check th e
oil level.
Low
Normal
Excessive
The shape of the dipstick
may differ depending on the
type of vehicle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
3
6

5399-1. Specifications
9
Vehicle specifications
PRIUS c_U
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up the engine and turn off the hybrid system, wait
more than 5 minutes, and check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat isfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice
for good fuel economy and
good starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Hybrid battery (traction battery)
Type Nickel-metal hydride battery
Voltage7.2 V/module
Capacity 6.5 Ah (3HR)
Quantity20 modules
Nominal voltage 144 V
Lubrication system
Oil capacity (Drain and
refill reference
*)
With filter
Without filter 3.9 qt. (3.7 L, 3.3 Imp. qt.)
3.6 qt. (3.4 L, 3.0 Imp. qt.)
Outside temperature

5409-1. 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.

594Alphabetical index
PRIUS c_U
MaintenanceDo-it-yourself
maintenance ....................... 416
Emission inspection and maintenance (I/M)
programs ............................ 415
General maintenance ........... 412
Maintenance data ................. 536
Maintenance requirements ... 409
Meter Instrument panel light
control................................. 101
Meters ..................................... 99
Microphone .............................. 333
Mirrors
Inside rear view mirror .......... 160
Outside rear view mirror defogger ............................. 378
Outside rear view mirrors...... 161
Vanity mirrors........................ 393
Moon roof ................................. 167
MP3 disc ................................... 300
Multi-information display ........ 103
Navigation system
*
Noise from under vehicle............ 8 Odometer ................................. 100
Oil
Engine oil .............................. 539
Opener Back door ............................. 136
Fuel filler door ....................... 221
Hood ..................................... 419
Outside rear view mirrors
Adjusting and folding ............ 161
Defogger ............................... 378
Outside temperature
display.................................... 101
Overheating, Hybrid system.................................... 529
Parking brake........................... 207
Parking lights Replacing light bulbs ............ 460
Switch ................................... 208
Wattage ................................ 544
PCS (Pre-Collision system) .... 231 PCS (Pre-Collision
system) switch...... .............. 234
Warning light......................... 482
Personal lights Switch ................................... 386
Wattage ................................ 544
Power outlet ............................. 394
Power switch ................... 188, 192
Power windows ....................... 163
Pre-Collision system (PCS) .... 231 PCS (Pre-Collision
system) switch...... .............. 234
Warning light......................... 482
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