2021 TOYOTA PRIUS battery

456
PRIUS_OM_OM47E09U_(U)
5-1. Using the air conditioning system and defogger
Heated steering wheel/seat heaters
: If equipped
●Heated steering wheel
Warm up the grip of the steering wheel
● Seat heaters (front seats)
Warm up the seat upholstery
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the hea ter 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 minor burns or ove rheating:
• 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.

460
PRIUS_OM_OM47E09U_(U)
5-2. Using the interior lights
Turns the switch to the door
position (door linked)
Operation is linked with the front
interior light main switch. When the
switch is off, the light does not illu-
minate.
Turns the light on
■Illuminated entry system
The lights automatically turn on/off according to power switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■ To prevent the 12-volt batte ry from being discharged
If the interior lights remain on when the power switch is turned off, the light
will go off automatically after 20 minutes.
■ Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features: P. 690)
Rear interior light
1
2
NOTICE
To prevent 12-volt battery discharge, do not leave the lights o n longer than
necessary when the hybrid system is off.

473
PRIUS_OM_OM47E09U_(U)
5-4. Using the other interior features
5
Interior features
Other interior features
To set the visor in the forward
position, flip it down.
To set the visor in the side posi-
tion, flip down, unhook, and
swing it to the side.
To use the side extender, place
the visor in the side position,
then slide it backward.
Slide the cover to open.
The light turns on when the cover
is opened.
If the vanity light remain on when the power switch is turned o ff, the light will
go off automatically after 20 minutes.
Sun visors
1
2
3
Vanity mirrors
NOTICE
To prevent 12-volt battery discharge, do not leave the vanity l ights on for
extended periods while the hybrid system is off.

474
PRIUS_OM_OM47E09U_(U)
5-4. Using the other interior features
Please use as a power supply for electronic goods that use less than
12 V DC/10 A (power consumption of 120 W).
Open the lid.
■ The power outlet can be used when
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 outlets
NOTICE
●To avoid damaging the power outlets, close the lid when the power outlet
is not in use.
Foreign objects or liquids that enter the power outlets may cau se 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.

488
PRIUS_OM_OM47E09U_(U)
5-4. Using the other interior features
Garage door opener
The HomeLink® wireless control system in your vehicle has 3 buttons
which can be programmed to operate 3 different devices. Refer to the
programming methods on the following pages to determine the
method which is approp riate for the device.
HomeLink
® indicator light
Garage door operation indica-
tors
Buttons
■Before programming the HomeLink®
● During programming, it is possible that garage doors, gates, or
other devices may operate. For this reason, make sure that peo-
ple and objects are clear of the garage door or other devices t o
prevent injury or other potential harm.
● It is recommended that a new battery be placed in the remote
control transmitter for mo re accurate programming.
● Garage door opener motors manufactured after 1995 may be
equipped with rolling code pro tection. If this is the case, you may
need a stepladder or other sturdy, safe device to reach the
“Learn” or “Smart” button on the garage door opener motor.
: If equipped
The garage door opener can be programmed to operate garage
doors, gates, entry doors, door locks, home lighting systems,
security systems, and other devices.
HomeLink®
1
2
3

PRIUS_OM_OM47E09U_(U)
4935-4. Using the other interior features
5
Interior features
Press and hold the 2 outside but-
tons for 10 seconds until the
HomeLink
® indicator light
changes from continuously lit
orange to rapidly flashing green.
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink
® memory.
■ Codes stored in the HomeLink® memory
● The registered codes are not erased even if the battery cable i s discon-
nected.
● If learning failed when registering a different code to a HomeL ink
® button
that already has a code registered to it, the already registere d code will not
be erased.
■ Before programming
●Install a new battery in the transmitter.
● The battery side of the transmitter must be pointed away from the
HomeLink
®.
■ Certifications for the garage door opener
For vehicles sold in the U.S.A.
Erasing the entire HomeLink® memory (all three codes)

495
PRIUS_OM_OM47E09U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 496
Cleaning and protecting the vehicle interior ........... 502
6-2. Maintenance Maintenance requirements ................... 505
General maintenance........ 508
Emission inspection and maintenance (I/M)
programs......................... 511
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 512
Hood ................................. 515
Positioning a floor jack ...... 517
Engine compartment ......... 518
Tires .................................. 532
Tire inflation pressure ....... 542
Wheels .............................. 545
Air conditioning filter.......... 548
Cleaning the hybrid battery (traction battery) air intake
vent and filter .................. 551
Wiper insert replacement .................... 556
Electronic key battery........ 560
Checking and replacing fuses ............................... 563
Headlight aim .................... 566
Light bulbs......................... 568

PRIUS_OM_OM47E09U_(U)
4976-1. Maintenance and care
6
Maintenance and care
■Note for 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 key in a position 6 ft. (2 m) or more separate from t he vehicle
while the vehicle is being washed. (Take care to ensure that th e key is not
stolen.)
● Set the electronic key to battery-saving mode to disable the sm art key sys-
tem. ( P. 198)
■ Wheels and wheel ornaments
●Remove any dirt immediately by using a neutral detergent.
● Wash detergent off with water immediately after use.
● To protect the paint from damage, make sure to observe the following pre-
cautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driv-
ing or parking in hot weather
■ Bumpers
Do not scrub with abrasive cleaners.
■ Front side windows water-repellent coating (if equipped)
The following precautions can extend the effectiveness of the water-repellent
coating.
●Remove any dirt, etc. from the front side windows regularly.
● Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
● Do not use wax or glass cleaners that contain abrasives when cleaning the
windows.
● Do not use any metallic objects to remove condensation build up.
■ Plated portions
If dirt cannot be removed, clean the parts as follows:
●Use a soft cloth dampened with an approximately 5% solution of neutral
detergent and water to clean the dirt off.
● Wipe the surface with a dry, soft cloth to remove any remaining moisture.
● To remove oily deposits, use alcohol wet wipes or a similar pro duct.