battery TOYOTA PRIUS C 2020 Service Manual

3665-11. Bluetooth® (Multimedia system)
PRIUS c_U■
Bluetooth
® antenna
The antenna is built into the display.
If the portable audio player is behind the seat or in the glove box or console
box, or is touching or covered by metal objects, the connection status may
deteriorate.
If the cellular phone is behind the seat or in the console box, or touching or
covered by metal objects, the connection status may deteriorate .
■ Battery charge/signal status
●This display may not correspond exactly with the portable audio player or
cellular phone itself.
● This system does not have a charging function.
● The portable audio player or cellular phone battery will be dep leted quickly
when the device is connected to Bluetooth
®.
■ When using the Bluetooth
® audio and hands-free system at the same
time
The following problems may occur.
● The Bluetooth
® audio connection may be interrupted.
● Noise may be heard during Bluetooth
® audio playback.
■ About the contact in this system
The following data is stored for every registered cellular phone. When
another phone is connecting, you cannot read the registered dat a.
● Contact data
● Call history
● Favorite
● Message
When removing a Bluetooth
® phone from the system, the above-mentioned
data is also deleted.

3846-1. Using the air conditioning system and defogger
PRIUS c_U
Turns on the front left seat
heater
Turns on the front right seat
heater
The indicator light comes on.
Push the switch once again to turn
off the seat heater.
■The seat heaters can be used when
The power switch is in ON mode.
■ When not in use
Turn the seat heater off. The indicator light goes off.
Seat heaters
: If equipped
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the seats when the heater is on:
• Babies, small children, the elderly, the sick and the physical ly chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sle eping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent the minor burns or overheat-
ing
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent 12-volt battery discharge, do not use the functions when the
hybrid system is off.
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3876-2. Using the interior lights
6
Interior features
PRIUS c_U
■Illuminated entry system
Vehicles without a smart key system
When the interior lights switch is in the door position, the interior lights auto-
matically turn on/off according to the power switch position, whether the
doors are locked/unlocked, and whether the doors are open/close d.
Vehicles with a smart key system
When the interior lights switch is in the door position, the interior lights auto-
matically turn on/off according to power switch mode, the presence of the
electronic key, whether the doors are locked/unlocked, and whet her the doors
are open/closed.
■ To prevent 12-volt battery discharge
Vehicles without a smart key system
If the interior lights, personal lights or luggage compartment light remain on
when the power switch is “LOCK” position, the lights will go of f automatically
after 20 minutes.
Vehicles with a smart key system
If the interior lights, personal lights or luggage compartment light remain on
when the power switch is off, the lights will go off automatica lly after 20 min-
utes.
■ Customization that can be configured at Toyota dealer
Settings (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 560)
NOTICE
■To prevent 12-volt b attery discharge
Do not leave the lights on longer than necessary when the hybri d system is
off.

3946-4. Other interior features
PRIUS c_U
Please use as a power supply for electronic goods that use less than
12 VDC/10 A (power c onsumption of 120 W).
Open the lid.
■ The power outlet can be used when
Vehicles without a smart key system
The power switch is in the “ACC” or “ON” position.
Vehicles with a smart key system
The power switch is in ACCESSORY or ON mode.
■ When stopping the hybrid system
Disconnect electrical devices with charging functions, such as mobile battery
packs.
If such devices are left connected, the hybrid system may not s top normally.
Power outlet
NOTICE
●To avoid damaging the power outlet, close the power outlet lid when the
power outlet is not in use. Foreign objects or liquids that ent er the power
outlet may cause a short circuit.
● To prevent 12-volt battery discharge, do not use the power outl et longer
than necessary when the hybrid system is off.

399
7Maintenance and care
PRIUS c_U7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 400
Cleaning and protecting the vehicle interior ........... 403
7-2. Maintenance Maintenance requirements ................... 409
General maintenance........ 412
Emission inspection and maintenance (I/M)
programs......................... 415
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 416
Hood ................................. 419
Positioning a floor jack ...... 421
Engine compartment ......... 422
12-volt battery ................... 431
Tires .................................. 435
Tire inflation pressure ....... 444
Wheels .............................. 447
Air conditioning filter.......... 449
Wireless remote control/ electronic key battery ...... 451
Checking and replacing fuses ................ 454
Light bulbs......................... 458

400
PRIUS c_U
7-1. Maintenance and care
●Working from top to bottom, liberally apply water to the vehicl e
body, wheel wells and underside of the vehicle to remove any di rt
and dust.
● Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thoroughl y
with water.
● Wipe away any water.
● Wax the vehicle when the wate rproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of
the vehicle. Make sure to extend the mirrors before driving.
● Brushes used in automatic car washes may scratch the vehicle su rface and
harm your vehicle's paint.
● In certain automatic car washes, the rear spoiler may interfere with machine
operation. This may prevent t he vehicle from being cleaned properly or
result in damage to the rear spoiler.
■ High pressure car washes
As water may enter the cabin, do not bring the nozzle tip near the gaps
around the doors or perimeter of the windows, or spray these ar eas continu-
ously.
■ When using a car wash (vehicles with a smart key system)
If the door handle becomes wet while the electronic key is within the effective
range, the door may lock and unlock repeatedly. In that case, f ollow the fol-
lowing correction procedures to wash the vehicle:
● Place the electronic key in a location 6 ft. (2 m) or more away from the vehi-
cle. (Take care to ensure that the key is not stolen.)
● Set the electronic key to battery-saving mode to disable the sm art key sys-
tem. ( P. 142)
Cleaning and protecting the vehicle exterior
Perform the following to protect the vehicle and maintain it in
prime condition:

4047-1. Maintenance and care
PRIUS c_U
To prevent the hybrid battery (traction battery) air intake vent from
becoming clogged, cl ean it periodically.
■Cleaning the air intake vent
Remove any dust and clogs
from the air intake vent with a
vacuum cleaner, etc.
The air intake vent has a filter
behind the air intake vent cover.
If “MAINTENANCE REQUIRED FOR TRACTION BATTERY
COOLING PARTS SEE OWNER’S MANUAL” is displayed on the
multi-information display, the filter may be clogged. Remove th e air
intake vent cover and clean the filter.
■Cleaning the air intake vent filter
The air intake vent filter is
located below the rear seat
cushion on the left side.
Remove the 2 clipsPush in the center part of
the clips
Remove the clips
Cleaning the hybrid battery (traction battery) air intake vent
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4067-1. Maintenance and care
PRIUS c_U
Start the hybrid system and check that “MAINTENANCE
REQUIRED FOR TRACTION BATTERY COOLING PARTS SEE
OWNER’S MANUAL” is no longer displayed on the multi-infor-
mation display.
It may take approximately 20 minu tes for the warning message to
disappear after the hybrid syste m is started. If the warning mes-
sage does not disappear even th ough the filter has been cleaned,
have the vehicle inspect ed by your Toyota dealer.
■Caring for leather areas
Toyota recommends cleaning the interior of the vehicle at least twice a year to
maintain the quality of the vehicle's interior.
■ Shampooing the carpets
There are several commercial foaming-type cleaners available. U se a sponge
or brush to apply the foam. Rub in overlapping circles. Do not use water.
Wipe dirty surfaces and let them dry. Excellent results are obt ained by keep-
ing the carpet as dry as possible.
■ Air intake vent maintenance
●If the vehicle is driven with the air intake vent clogged, the hybrid battery
(traction battery) may overheat and the fuel consumption may in crease.
● Depending on the conditions under which the vehicle is used, th e air intake
vent may need to be cleaned more regularly.
■ Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge . Also
check the belts periodically for excessive wear, fraying or cut s.
■ Cleaning the air intake vent filter
●Improper handling of the air intake vent cover and filter may result in dam-
age to them. If you have any concerns about cleaning the filter , contact your
Toyota dealer.
● If the vehicle is driven with the air intake vent filter clogged, the hybrid bat-
tery (traction battery) may overheat and the fuel consumption m ay increase.
● Depending on the conditions under which the vehicle is used, th e air intake
vent filter may need to be cleaned more regularly.
6

4077-1. Maintenance and care
7
Maintenance and care
PRIUS c_U■
If “MAINTENANCE REQUIRED FO R TRACTION BATTERY COOLING
PARTS SEE OWNER’S MANUAL” is displayed on the multi-information
display
● It is possible the air intake vent or filter is clogged due to accumulated dust.
Clean the air intake vent and filter, referring to the cleaning method.
● When continuously driven in this state, the hybrid battery (traction battery)
may overheat, which may lead to the driving distance by the ele ctric motor
getting shorter, the fuel consumption worsening, and causing da mage.
Clean the air intake vent periodically to prevent dust, etc., f rom collecting in
the air intake vent or filter.
● If the massage in the multi-information display does not turn off, even if the
air intake vent is cleaned, have the vehicle inspected at your Toyota dealer.
WARNING
■Water in the vehicle
● Do not splash or spill liquid in the vehicle, such as on the floor, in the
hybrid battery (traction battery) air vents, and in the luggage compartment.
Doing so may cause the hybrid battery, electrical components, etc. to mal-
function or catch fire.
● Do not get any of the SRS components or wiring in the vehicle i nterior wet.
( P. 41)
An electrical malfunction may cause the airbags to deploy or no t function
properly, resulting in death or serious injury.
■ Cleaning the interior (esp ecially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel m ay reflect
off the windshield, obstructing the driver's view and leading t o an accident,
resulting in death or serious injury.
■ When cleaning the hybrid batte ry (traction battery) air intake vent/filter
● Do not use water or other liquids to clean the air intake vent/ filter. If water
is applied to the hybrid battery (traction battery) or other co mponents, a
malfunction or fire may occur.
● When the air intake vent cover, located below the rear seat cus hion on the
left side is to be removed, make sure to turn the power switch off to stop
the hybrid system.

4117-2. Maintenance
7
Maintenance and care
PRIUS c_U
WARNING
■If your vehicle is no t properly maintained
Improper maintenance could result in serious damage to the vehi cle and
possible serious injury or death.
■ Handling of the 12-volt battery
● Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Wor k in a
well ventilated area.
● Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of Califor-
nia to cause cancer and birth defects or other reproductive har m. Avoid
exposure and wash any affected area immediately.
● 12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your
hands after handling. ( P. 431)