2022 TOYOTA PRIUS PRIME battery

7148-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
■When opening the cover of the positive (+) battery terminal
P. 605
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid s ystem is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic .
■ When the 12-volt battery is removed or discharged
● Information stored in the ECU is cleared. When the 12-volt batt ery is
depleted, have the vehicle inspected at your Toyota dealer.
● Some systems may require initialization. ( P. 761)
■ When removing the 12-vo lt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact your
Toyota dealer.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gr adually even when
the vehicle is not in use, due to natural discharge and the dra ining effects of
certain electrical appliances. If the vehicle is left for a lon g time, the 12-volt
battery may discharge, and the hybrid system may be unable to s tart. (The
12-volt battery recharges automatically while the hybrid system is operating.)

7158-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
8
When trouble arises
■When recharging or replacing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wire less remote
control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● Vehicles with smart lid & connector locking system:
It may be impossible to unlock the charging port lid or locking and unlocking
the charging connector immediately after the 12-volt battery is reconnected.
In this case, carry the electronic key on your person and opera te the
charging port lid or charging connector lock switch again.
● The power switch mode is memorized by the vehicle. When the 12- volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12 -volt battery.
● If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In thi s case, the vehicle
cannot be towed without lifting both front wheels because the f ront wheels
will be locked. ( P. 664)
■ When replacing the 12-volt battery
●Use a 12-volt battery that conforms to European regulations.
● Use a 12-volt battery that the case size is same as the previou s one (LN1),
20 hour rate capacity (20HR) is equivalent (45Ah) or greater, and perfor-
mance rating (CCA) is equivalent (295A) or greater.
• If the sizes differ, the 12-volt battery cannot be properly se cured.
• If the 20 hour rate capacity is low, even if the time period w here the vehi-
cle is not used is a short time, the 12-volt battery may discharge and the
hybrid system may not be able to start.
● For details, consult your Toyota dealer.

7168-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
WARNING
■When removing the 12-volt battery terminals
Always remove the negative (-) terminal first. If the positive (+) terminal con-
tacts any metal in the surrounding area when the positive (+) terminal is
removed, a spark may occur, leading to a fire in addition to el ectrical shocks
and death or serious injury.
■ Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally ignit ing the flam-
mable gas that may be emitted from the 12-volt battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the in tended terminal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come in to contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open fla me near
the 12-volt battery.
■ 12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte,
while related parts contain lead and lead compounds. Observe the following
precautions when handling the 12-volt battery:
● When working with the 12-volt battery, always wear safety glass es and
take care not to allow any battery fluids (acid) to come into contact with
skin, clothing or the vehicle body.
● Do not lean over the 12-volt battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the 12-volt battery support, termi-
nals, and other battery-related parts.
● Do not allow children near the 12-volt battery.

PRIUS PRIME_OM_OM47E74U_(U)
7299-1. Specifications
9
Vehicle specifications
Generation/traction motor
Traction motor
Electric motor (generation motor/traction motor)
Ty p ePermanent magnet synchronous motor
Maximum output22.5 kW
Maximum torque29.5 ft•lbf (40 N•m, 4.1 kgf•m)
Ty p ePermanent magnet synchronous motor
Maximum output53 kW
Maximum torque120.2 ft•lbf (163 N•m, 16.6 kgf•m)
Hybrid battery (traction battery)
Ty p eLithium-ion battery
Vol t a ge3.7 V/cell
Capacity25 Ah
Quantity95 cells
Nominal voltage351.5 V

732
PRIUS PRIME_OM_OM47E74U_(U)
9-1. Specifications
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact your Toyota dealer.
Electrical system (12-volt battery)
Open voltage at 68 F (20 C):
12.0 V or higher
If the voltage is lower than the standard
value, charge the battery. (After charging
the battery, turn on the high beam head-
lights for 30 seconds with the power switch
off, and turn the headlights off.)
Charging rates5 A max.
Transmission
Fluid capacity*3.9 qt. (3.7 L, 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Transmission fluid type
Using transmission fluid other than the above type may cause abnormal
noise or vibration, or ultimately damage the transmission of your vehicle.

744
PRIUS PRIME_OM_OM47E74U_(U)
9-1. Specifications
Production options
weight
The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy
duty 12-volt battery, and special trim
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a
rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight
(Total load capacity)The rated cargo and l uggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load
on the tire
The load on an individual tire that is deter-
mined by distributing to each axle its share of
the maximum loaded vehicle weight, and
dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is deter-
mined by distributing to each axle its share of
curb weight, accessory weight, and normal
occupant weight (distributed in accordance
with Table 1
* below), and dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Bead
The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim
Tire related termMeaning

PRIUS PRIME_OM_OM47E74U_(U)
7599-2. Customization
9
Vehicle specifications
■Seat belt reminder (P. 676)
■Charge settings
■Maintenance system
■Vehicle customization
●When the Speed linked door locking function and the Shift posit ion linked
door locking function are both on, the door lock operates as fo llows.
• When shifting the shift position to any position other than P, all the doors
will be locked.
• If the vehicle is started with all the doors locked, the Speed linked door locking function would not operate.
• If the vehicle is started with any door unlocked, the Speed linked door locking function will operate.
● When the smart key system is off, Smart door unlocking cannot b e custom-
ized.
● When the doors remain closed after unlocking the doors and the automatic
door lock function is activated, the signals will be generated in accordance
with the operation signal (buzzer) and the operation signal (em ergency
flashers) settings.
■ In the following situations, customize mode in which the settin gs can be
changed through the multi-information display will automaticall y be
turned off.
● The power switch is turned off.
● The vehicle begins to move while the customize mode screen is d isplayed.
FunctionDefault
settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff––O
123
Charge scheduleSetting the charging schedule: P. 162
Charge currentChanging the upper limit of the charging cur-
rent:P. 133
Charging connector lock
(if equipped)Changing the charging connector lock settings:
P. 127
Traction battery heaterSetting “Traction Battery Heater” on/off:
P. 136
Oil Maintenance
(U.S.A. only)Resetting the message indicating maintenance
is required: P. 586
Tire pressure warning
systemInitializing the tire p ressure warning system:
 P. 613

760
PRIUS PRIME_OM_OM47E74U_(U)
9-2. Customization
WARNING
■Cautions during customization
As the hybrid system needs to be operating during customization , ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
■ During customization
To prevent 12-volt battery discharge, ensure that the hybrid sy stem is oper-
ating while customizing features.