2022 TOYOTA PRIUS PLUG-IN HYBRID remote start

5957-3. Do-it-yourself maintenance
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
7
Maintenance and care
QWhen opening the cover of the positive (+) battery terminal
Q Before recharging
When recharging, the 12-volt battery produces hydrogen gas whic h is flam-
mable and explosive. Therefore, observe the following precautio ns before
recharging:
O If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
O Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
Q After recharging/reconnecting the 12-volt battery
O Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unloc k the doors.
O Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. H owever, the
hybrid system will operate normally from the second attempt.
O The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to t he status it
was in before the 12-volt battery was disconnected. Make sure t o turn off
the power switch before disconnect the 12-volt battery. Take ex tra care
when connecting the 12-volt battery if the power switch mode pr ior to dis-
charge is unknown.
If the system will not start even after multiple attempts at al l methods above,
contact any authorized Toyota retailer or Toyota authorized rep airer, or any
reliable repairer.
While pushing the portion shown in the
illustration from both sides, lift the end of
the cover up.

6327-3. Do-it-yourself maintenance
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Remove the depleted battery.
When removing the cover, if the
battery cannot be seen due to the
electronic key module attaching to
the upper cover, remove the elec-
tronic key module from the cover
so that the battery is visible as
shown in the illustration.
When removing the battery, use a
screwdriver of an appropriate size.
Insert a new battery with the “+” terminal facing up.
When installing, reverse the steps listed.
QUse a CR2032 lithium battery
OBatteries can be purchased at any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer, local electrical appliance shops
or camera stores.
OReplace only with the same or equivalent type recommended by the manu-
facturer.
ODispose of used batteries according to the local laws.
QIf the electronic key battery is depleted
The following symptoms may occur:
OThe smart entry & start system and wireless remote control will not function
properly.
OThe operational range will be reduced.
3
4

6337-3. Do-it-yourself maintenance
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
7
Maintenance and care
WARNING
QBattery precautions
Observe the following precautions.
Failure to do so may result in death or serious injury.
O Do not swallow the battery. Doing so may cause chemical burns.
O A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.
O Keep away new and removed batteries from children.
O If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then cont act any
authorized Toyota retailer or Toyota authorized repairer, or an y reliable
repairer as soon as possible.
O If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.
Q To prevent battery explosion or leakage of flammable liquid or gas
O Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.
O Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
O Do not burn, break or cut a battery.
Q Certification for the smart entry & start system
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
Q For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
O Always work with dry hands.
Moisture may cause the battery to rust.
O Do not touch or move any other component inside the remote control.
O Do not bend either of the battery terminals.

6938-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
8
When trouble arises
If the electronic key does not operate
properly
Use the mechanical key ( P. 269) in order to perform the following
operations:
Locks all the doors
Closes the windows (turn and
hold)*
Unlocks all the doors
Opens the windows (turn and
hold)*
*: This setting must be customized at
any authorized Toyota retailer or
Toyota authorized repairer, or any
reliable repairer. ( P. 724)
If communication between the electronic key and vehicle is inter-
rupted ( P. 286) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireles s
remote control cannot be used. In such cases, the doors can be
opened and the hybrid system can be started by following the pr o-
cedure below.
Locking and unlocking the doors
1
2
3
4

7008-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Q When recharging or replacing the 12-volt battery
O In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the 12-volt battery is discharged. Us e the wire-
less remote control or the mechanical key to lock or unlock the doors.
O 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.
O 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.
O 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-vol t 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.
O 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. 650)
Q When replacing the 12-volt battery
O Use a 12-volt battery that conforms to European regulations.
O Use a 12-volt battery that the case size is same as the previous one (LN1),
20 hour rate capacity (20HR) is equivalent (45Ah) or greater, a nd 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 discha rge and the
hybrid system may not be able to start.
O For details, consult any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

7269-2. Customization
Prius Plug-in Hybrid_OM_OM47E75E_(EE)Q
Smart entry & start system and wireless remote control
(P. 273, 283)
QSmart entry & start system (P. 283)
*: If equipped
Q
Wireless remote control (P. 273)
QRear seat reminder (P. 276)
FunctionDefault
settingCustomized
setting
Operation signal
(emergency flashers)OnOff–OO
Open door reminder buzzer
(When locking the vehicle)OnOff––O
Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked
30 seconds
60 seconds
––O
120 seconds
123
FunctionDefault
settingCustomized
setting
Smart entry & start system On Off – O O
Number of consecutive door
lock operations
*2 timesAs many as
desired––O
123
FunctionDefault
settingCustomized
setting
Wireless remote control On Off – – O
123
FunctionDefault
settingCustomized
setting
Rear seat reminder function On Off O – –
123

741Alphabetical index
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Antenna
Smart entry & start system.... 283
Anti-lock brake system
(ABS) ...................................... 509
Function ................................ 509
Warning light ......................... 658
Approach warning ................... 411
Armrest ..................................... 563
Assist grips .............................. 564
Audio input
*
Audio system*
Automatic air conditioning
system .................................... 522
Air conditioning filter.............. 624
Automatic air conditioning
system ................................ 522
Blower customization ............ 526
Eco score (A/C score) ........... 244
Front seat concentrated
airflow mode (S-FLOW)...... 525
Humidity sensor .................... 534
Remote Air Conditioning
System................................ 535
Automatic headlight leveling
system .................................... 339
Automatic light control
system .................................... 338
Auxiliary boxes ........................ 548
Back door ................................. 278
Back-up light ............................ 638
Replacing light bulbs ............. 639
Wattage................................. 721Battery (12-volt battery) .......... 594
Battery checking ................... 594
Exchanging ........................... 700
If the 12-volt battery is
discharged .......................... 697
Preparing and checking
before winter....................... 516
Replacing .............................. 700
Warning light ......................... 657
Battery (traction battery)........... 98
Air intake vent ......................... 99
Charging ............................... 111
Location .................................. 98
Specification ......................... 715
Status indicator ..................... 113
Blind Spot Monitor (BSM) ....... 423
Blind Spot Monitor function ... 439
Rear Crossing Traffic Alert
function ............................... 443
Bluetooth
®*
Bottle holders .......................... 547
Brake
Fluid ...................................... 720
Parking brake........................ 336
Regenerative braking.............. 93
Warning light ......................... 657
Brake assist ............................. 509
Brake Override System ........... 310
Break-in tips ............................. 311
Brightness control
Instrument cluster light
control................................. 196
BSM (Blind Spot Monitor) ....... 423
Blind Spot Monitor function ... 439
Rear Crossing Traffic Alert
function ............................... 443
B
*: Refer to “Navigation system Owner’s manual”.

748Alphabetical index
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Jack ........................................... 613
Positioning a floor jack .......... 586
Vehicle-equipped jack ........... 613
Jack handle .............................. 613
Jam protection function .......... 304
Keyless entry ........................... 273
Smart entry & start system.... 283
Wireless remote control ........ 273
Keys .......................................... 268
Battery-saving function ......... 285
Electronic key........................ 268
Engine switch ........................ 323
If the electronic key does not
operate properly ................. 693
If you lose your keys ..... 269, 272
Key number plate .................. 268
Keyless entry ........................ 273
Mechanical key ..................... 269
Power switch ......................... 323
Replacing the battery ............ 631
Smart entry & start system.... 283
Warning buzzer ..................... 284
Wireless remote control ........ 268
Knee airbags .............................. 39
Language (multi-information
display) ................................... 250Lever
Auxiliary catch lever .............. 584
Hood lock release lever ........ 584
Shift lever .............................. 329
Tilt and telescopic steering
lock release lever ............... 297
Turn signal lever ................... 335
Wiper lever............................ 348
License plate lights ................. 337
Light switch ........................... 337
Replacing light bulbs............. 643
Light
AHS (Adaptive High-beam
System) .............................. 341
Door courtesy lights .............. 541
Emergency flasher switch ..... 646
Extended Headlight
Lighting system .................. 338
Fog light switch ..................... 347
Headlight switch.................... 337
Illuminated entry system ....... 543
Interior lights ................. 542, 543
Interior light list...................... 541
Luggage compartment
light..................................... 279
Personal lights ...................... 542
Replacing light bulbs............. 638
Shift lever light ...................... 541
Turn signal lever ................... 335
Vanity lights .......................... 555
Wattage ................................ 721
Light bulbs
Replacing .............................. 638
Wattage ................................ 721
LTA (Lane Tracing Assist) ...... 379
Luggage cover ......................... 553
J
K
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