2022 TOYOTA PRIUS PLUG-IN HYBRID battery replacement

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Prius Plug-in Hybrid_OM_OM47E75E_(EE)
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7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ..........566
Cleaning and protecting
the vehicle interior ...........572
7-2. Maintenance
Maintenance
requirements....................578
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ......................581
Hood ..................................584
Positioning a floor jack .......586
Engine compartment..........587
Tires ...................................600
Tire inflation pressure ........608
Wheels ...............................610
Replacing the tire ...............612
Air conditioning filter ..........624
Wiper insert
replacement .....................628
Electronic key battery ........631
Checking and replacing
fuses ................................634
Light bulbs .........................638
8-1. Essential information
Emergency flashers .......... 646
If your vehicle has to
be stopped in an
emergency ...................... 647
If the vehicle is submerged
or water on the road
is rising ............................ 648
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ..................... 650
If you think something is
wrong .............................. 656
If a warning light turns on
or a warning buzzer
sounds ............................ 657
If a warning message is
displayed ......................... 665
If you have a flat tire .......... 673
If the hybrid system will
not start ........................... 691
If the electronic key does
not operate properly ........ 693
If the 12-volt battery is
discharged ...................... 697
If your vehicle
overheats ........................ 703
If the vehicle becomes
stuck................................ 708
7Maintenance and care8When trouble arises

1042-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
NOTICE
QHybrid battery (traction battery) air vents
O Make sure not to block the air intake vent with anything, such as a seat
cover, plastic cover, or luggage. If the vents are blocked, the charging/dis-
charging of the hybrid battery (traction battery) may become li mited.
O When dust etc. has accumulated in the air intake vent, clean it with a vac-
uum cleaner to prevent the vent from clogging.
O Do not wet or allow foreign substances to enter the air vents as this may
cause a short circuit and damage the hybrid battery (traction b attery).
O Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction batt ery), the battery
may be damaged. Have the vehicle inspected by any authorized To yota
retailer or Toyota authorized repairer, or any reliable repaire r.
O A filter is installed to the air intake vent. When the filter remains noticeably
dirty even after cleaning the air intake vent, filter cleaning or replacement
is recommended. When cleaning the filter, refer to P. 573.
Q Notice about fuel
O For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo changes in quality depending on the how the vehicle is used.
Refuel at least 20 L (5.3 gal., 4.4 Imp.gal.) of fuel every 12 months (refuel
a total of at least 20 L [5.3 gal., 4.4 Imp.gal.] over a 12-mon th period), as
this may affect components of the fuel system or the gasoline e ngine.
O If the vehicle has not been refueled for a certain amount of time and it is
possible that the quality of the fuel remaining in the tank has changed, “No
new fuel has been added recently. Please refuel” is displayed o n the multi-
information display when the power switch is turned to ON mode. If the
message is displayed, refuel the vehicle immediately.

2023. Instrument cluster
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
QThe meters and display illuminate when
The power switch is in ON mode.
QAdjusting the instrument cluster brightness (P. 196)
OThe brightness levels that can be selected differ depending on whether the
tail lights are on and surrounding brightness levels, as shown in the table
below.
*: 22 levels of the brightness are displayed on the setting screen. However,
the brightness setting will be the brightest when other than 1st level (the
darkest) is selected. If other than 1st or 22nd level is selected, when the
tail lights are turned on in a dark place, the instrument cluster brightness
setting will be the selected level.
OIf the taillights are illuminated in a dark environment, the instrument cluster
light dims. However, when the brightness of the instrument cluster is set to
minimum or maximum (1st or 22nd level of the instrument cluster bright-
ness), even if the taillights are illuminated, the instrument cluster light will
not dim.
QWhen disconnecting and reconnecting 12-volt battery terminals
The settings of the clock will be reset.
QCalendar setting
OUntil the calendar setting is completed, the check screen is displayed every
time the power switch is turned to ON mode.
OAfter the calendar information is set, it can be changed in the “Meter Custo-
mize” settings. (P. 250)
The tail lights are offThe tail lights are on
In a bright place2 levels*2 levels*
In a dark place22 levels
If calendar recording is interrupted due to
replacement of the 12-volt battery or 12-
volt battery discharge, etc., when the
power switch is turned to ON mode after
maintenance, the calendar setting check
screen is automatically displayed on the
multi-information display.
OIf date information is not set, the electric-
ity and fuel consumption record cannot
be stored correctly. Also, the charging
schedule function can not operate prop-
erly. When the calendar setting check
screen is displayed, make sure to com-
plete the calendar setting. (P. 247)

2704-1. Key information
Prius Plug-in Hybrid_OM_OM47E75E_(EE)QElectronic key battery depletion
OThe standard battery life is 1 to 2 years.
OIf the battery becomes low, an alarm will sound in the cabin and a message
will be displayed on the multi-information display when the hybrid system
stops.
OAs the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. (P. 631)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You can replace the battery by yourself (P. 631). However, as there is a
danger that the electronic key may be damaged, it is recommended that
replacement is carried out by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
OTo avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers

565
7Maintenance and care
Prius Plug-in Hybrid_OM_OM47E75E_(EE)7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 566
Cleaning and protecting
the vehicle interior ........... 572
7-2. Maintenance
Maintenance
requirements.................... 578
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ...................... 581
Hood .................................. 584
Positioning a floor jack ....... 586
Engine compartment.......... 587
Tires ................................... 600
Tire inflation pressure ........ 608
Wheels ............................... 610
Replacing the tire ............... 612
Air conditioning filter .......... 624
Wiper insert
replacement ..................... 628
Electronic key battery ........ 631
Checking and replacing
fuses ................................ 634
Light bulbs ......................... 638

6267-3. Do-it-yourself maintenance
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “ UP” marks shown on the fil-
ter should be pointing up.
When installing, reverse the steps listed.
Q Checking interval
Inspect and replace the air conditioning filter according to th e maintenance
schedule. In dusty areas or areas with heavy traffic flow, earl y replacement
may be required. (For scheduled maintenance information, please refer to the
“Toyota Service Booklet” or “Toyota Warranty Booklet”.)
Q If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if nece ssary.
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WARNING
QWhen replacing the air conditioning filter
Observe the following precautions. Failure to do so may result in the air
conditioning system operating dur ing the procedure, possibly resulting in
injury.
O Check that the charging connector is not connected
The air conditioning may operate due to the “Climate Prep” ( P. 166) or
“Traction Battery Cooler” ( P. 145) setting. (if equipped)
O Do not use the Remote Air Conditioning System
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7199-1. Specifications
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
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Vehicle specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota reta iler or
Toyota authorized repairer, or any reliable repairer.
Electrical system (12-volt battery)
Specific gravity
reading at 20 C (68F):
1.25 or higher
If the specific gravity is lower than the
standard value, charge the 12-volt bat-
tery.
Charging ratesQuick charge15 A max.
Slow charge5 A max.
Transmission
Fluid capacity*3.7 L (3.9 qt., 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
Q Transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.

756Alphabetical index
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Warning lights .......................... 205
ABS ....................................... 658
Brake Override System ......... 661
Brake system ........................ 657
Charging system ................... 657
Drive-Start Control ................ 661
Driver’s seat belt reminder
light ..................................... 660
Electronic engine control
system ................................ 658
Electric power steering
system ................................ 658
Front passenger’s seat belt
reminder light...................... 660
High coolant temperature...... 659
Low engine oil pressure ........ 658
Low fuel level ........................ 660
Malfunction indicator lamp .... 658
Master warning light .............. 660
Open door ............................. 660
Parking Support Brake
function ............................... 661
PCS....................................... 659
PKSB OFF indicator.............. 660
Rear passengers’ seat belt
reminder light...................... 660
Seat belt reminder light ......... 660
Slip indicator ......................... 659
SRS....................................... 658
Tire pressure ......................... 661
Warning messages .................. 665Warning reflector storage
space ...................................... 552
Washer...................................... 348
Checking ............................... 598
Preparing and checking
before winter....................... 516
Switch ................................... 348
Washing and waxing ............... 566
Water-repellent coating........... 567
Wheels ...................................... 610
Replacing wheels.................. 612
Size ....................................... 721
Window glasses....................... 303
Window lock switch ................ 303
Windows ................................... 303
Power windows ..................... 303
Rear window defogger .......... 527
Washer ................................. 348
Windshield wipers ................... 348
Handling the wiper arms ....... 571
Rain-sensing windshield
wipers ................................. 348
Replacing the wiper insert .... 628
Winter driving tips ................... 516
Wiper insert replacement........ 628
Wireless charger...................... 557
Wireless remote control.......... 268
Battery-Saving Function ....... 285
Locking/Unlocking................. 273
Remote Air Conditioning
System ............................... 535
Replacing the battery ............ 631