key battery TOYOTA PRIUS PLUS 2017 Owners Manual

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PRIUS +_OM_OM47B24E_(EE)6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ......................321
Hood ..................................323
Positioning a floor jack .......325
Engine compartment..........327
12-volt battery ....................337
Tires ...................................341
Tire inflation pressure ........353
Wheels ...............................355
Air conditioning filter ..........357
Wiper rubber replacement .....................359
Electronic key battery ........361
Checking and replacing fuses ................................363
Light bulbs .........................367
7-1. Essential information Emergency flashers ...........378
If your vehicle has to be stopped in an
emergency .......................379 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ..................... 380
If you think something is wrong .............................. 386
If a warning light turns on or a warning buzzer
sounds ............................ 387
If a warning message is displayed ......................... 400
If you have a flat tire (vehicles with spare
tire) .................................. 417
If you have a flat tire (vehicles without spare
tire) .................................. 431
If the hybrid system will not start ........................... 448
If the electronic key does not operate properly ........ 450
If the 12-volt battery is discharged ...................... 452
If your vehicle overheats ........................ 457
If the vehicle becomes stuck................................ 462
7When trouble arises

991-3. Theft deterrent system
1
PRIUS +_OM_OM47B24E_(EE)
For safety and security
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of
the following.
● Nobody is in the vehicle.
● The windows is closed before the alarm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
●The doors are unlocked using the
mechanical key.
● A person inside the vehicle opens a door
or hood.
● The 12-volt battery is recharged or
replaced when the vehicle is locked.
(→ P. 452)

1001-3. Theft deterrent system
PRIUS +_OM_OM47B24E_(EE)■
Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically
lock to prevent improper entry into the vehicle:
●When a person remaining in the vehicle unlocks the door and the alarm is
activated.
● While the alarm is activated, a person remaining in the vehicle unlocks the
door.
● When recharging or replacing the 12-volt battery.
■ Customization
The alarm can be set to deactivate when the mechanical key is used to
unlock. (Customizable features: →P. 477)
NOTICE
■ To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.

1413-1. Key information
3
Operation of each component
PRIUS +_OM_OM47B24E_(EE)
To take out the mechanical key,
press the release button and take
the key out.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the entry
function does not operate properly,
you will need the mechanical key.
(→ P. 450)
■If you lose your mechanical keys
New genuine mechanical keys can be made by any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional using another
mechanical key and the key number stamped on your key number plate.
Keep the plate in a safe place such as your wallet, not in the vehicle.
■ When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press
any buttons on the electronic key while inside the aircraft cabin. If you are
carrying an electronic key in your bag etc., ensure that the buttons are not
likely to be pressed accidentally. Pressing a button may cause the electronic
key to emit radio waves that could interfere with the operation of the aircraft.
Using the mechanical key
Release button

1423-1. Key information
PRIUS +_OM_OM47B24E_(EE)■
Electronic key battery depletion
●The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin, and the smart
entry & start system warning light will flash (vehicles without multi-informa-
tion display) or a message will be displayed on the multi-information display
(vehicles with multi-information display) when the hybrid system stops.
(→ P. 415)
● As 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. 361)
• 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.
● To avoid serious deterioration, do not leave the electronic key within 1 m (3
ft.) of the following electrical appl iances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers
■ Replacing the battery
→ P. 361
■ Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
any authorized Toyota dealer or re pairer, or another duly qualified and
equipped professional.
■ If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

1453-2. Opening, closing and locking the doors
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Operation of each component
PRIUS +_OM_OM47B24E_(EE)
■Operation signals
The emergency flashers flash to indicate that the doors have been locked/
unlocked. (Locked: Once; Unlocked: Twice)
■ Security feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
■ When the door cannot be locked by the lock sensor on the upper part of
the door handle
■ Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.
■ Setting the alarm (if equipped)
Locking the doors will set the alarm system. ( →P. 98)
■ If the smart entry & start system or the wireless remote control does not
operate properly
● Use the mechanical key to lock and unlock the doors. ( →P. 450)
● Replace the key battery with a new one if it is depleted. ( →P. 361)
If the door will not lock even when the top-
side sensor area is touched, try touching
both the topside and underside sensor
areas at the same time.

1553-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS +_OM_OM47B24E_(EE)■
Battery-saving function
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is
not in operation for a long time.
●In the following situations, the smart entry & start system may take some
time to unlock the doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.) of
the outside of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
● If the smart entry & start system has not been used for 14 days or longer,
the doors cannot be unlocked at any doors except the driver’s door. In this
case, take hold of the driver’s door handle, or use the wireless remote con-
trol or the mechanical key, to unlock the doors.
■ Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.
Interior alarm
pings repeatedly
The power switch was
turned to ACCESSORY
mode while the driver’s door
was open (The driver’s door
was opened when the
power switch was in
ACCESSORY mode).
Turn the power switch
off and close the
driver’s door.
The driver’s door was
opened while any shift posi-
tion other than P was
selected without turning off
the power switch.
Shift the shift position
to P.
Press twice while pressing and
holding . Confirm that the electronic
key indicator flashes 4 times.
While the battery-saving mode is set, the
smart entry & start system cannot be
used. To cancel the function, press any of
the electronic key buttons.
AlarmSituationCorrection procedure

1563-2. Opening, closing and locking the doors
PRIUS +_OM_OM47B24E_(EE)■
Conditions affecting operation
The smart entry & start system, wireless remote control and immobilizer sys-
tem use weak radio waves. In the following situations, the communication
between the electronic key and the vehicle may be affected, preventing the
smart entry & start system, wireless remote control and immobilizer system
from operating properly. (Ways of coping: →P. 450)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
● When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When other wireless key (that emit radio waves) is being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to the
rear window
● When the electronic key is placed near a battery charger or electronic
devices

1573-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS +_OM_OM47B24E_(EE)■
Note for the entry function
●Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place w hen the doors are locked or unlocked.
• The electronic key is on the instrument panel, luggage room, floor, or in the door pockets or glove box when the hybrid system is started or power
switch modes are changed.
● Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
● As long as the electronic key is within the effective range, the doors may be
unlocked or locked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
● Even if the electronic key is not inside the vehicle, it may be possible to start
the hybrid system if the electronic key is near the window.
● The doors may unlock if a large amount of water splashes on the door han-
dle, such as in the rain or in a car wash when the electronic key is within the
effective range. (The doors will automatically be locked after approximately
30 seconds if the doors are not opened and closed.)
● If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)
● Touching the door lock or unlock sensor while wearing gloves may delay or
prevent lock or unlock operation.
● If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In that case, follow the
following correction procedures to wash the vehicle:
• Place the electronic key in a location 2 m (6 ft.) or more away from the
vehicle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart entry & start system. ( →P. 155)
● If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-
play (if equipped) and a buzzer will sound outside the vehicle. To turn off the
alarm, lock all the doors.
● The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.

2114-2. Driving procedures
4
Driving
PRIUS +_OM_OM47B24E_(EE)
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
position in P, the power switch will automatically turn off. However, this func-
tion cannot entirely prevent the 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the hybrid system is not operating.
■ Sounds and vibrations specific to a hybrid vehicle
→ P. 8 4
■ Electronic key battery depletion
→ P. 142
■ When the ambient temperature is low, such as during winter driving con-
ditions
When starting the hybrid system, the fl ashing time of the “READY” indicator
may be long. Leave the vehicle as it is until the “READY” indicator is steady
on, as steady means the vehicle is able to move.
■ Conditions affecting operation
→ P. 156
■ Note for the entry function
→ P. 157
■ If the hybrid system does not start
The immobilizer system may not have been deactivated. ( →P. 91)
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
■ When “ENTRY & START SYSTEM CHECK HAVE YOUR VEHICLE
CHECKED BY A DEALER” is displayed on the multi-information display
(if equipped)
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped profes-
sional immediately.