2023 TOYOTA PRIUS PRIME radio

1844-1. Key information
Be sure to carry the electronic
key of the vehicle if traveling
to a location with unreliable
communications.
 If the smartphone battery is
depleted, the smartphone
cannot be used as Digital
Key. If the battery level is low,
be sure to charge the smart-
phone prior to going out.
 The Digital Key system is
related to the smart key sys-
tem. If the smart key system
has been deactivated in the
vehicle customization setting,
the Digital Key will also be
disabled.
 Depending on the radio wave
environment, the Digital Key
may not be able to be used.
( P.205)
 When transferring vehicle
ownership, make sure to
delete the Digital Keys.
 If the vehicle is not operated
for 14 days or more, the Digi-
tal Key will not connect auto-
matically. Therefore, it may
take some time before the
system operates after a door
handle is touched.
 A part of the services may be
stopped for a certain period of
time due to server mainte-
nance. However, registered
Digital Keys can be used
during the maintenance.
 A smartphone with the Digital Key App enabled will be able
to lock and unlock the doors,
start the hybrid system and
perform any other operations
as same as the electronic key
of the vehicle. Be especially
careful not to lose the smart-
phone or allow it to be stolen.
If the smartphone is lost or
stolen, contact your Toyota
dealer immediately.
 When taking your vehicle to a
Toyota dealer for an inspec-
tion or repairs, make sure to
bring an electronic key.
 With the Digital Key alone, no
vehicle lights will illuminate
when approached to the vehi-
cle. Also, with the Digital Key
alone, some functions, such
as the power back door’s
close & lock (walk-away)
function, etc., cannot be used.

2054-2. Opening, closing and locking the doors
4
Before driving
an area of approximately 11.5 ft.
(3.5 m) of the outside of the vehi-
cle for 40 seconds or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key 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 control or the
mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
●When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing
and holding .
Confirm that the electronic key indi-
cator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
●Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■When electronic key function
stops
If the position of the electronic key
has not changed for a certain
amount of time such as when the
electronic key is left somewhere, the
function of the electronic key stops to reduce depletion of the battery.
In this case, function can automati-
cally be restored by moving the
position of the key such as by lifting
it up.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating properly.
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station, radio station,
large display, airport or other facil-
ity that generates strong radio
waves or electrical noise
●When the electronic key is in con-
tact with, or is covered by the fol-
lowing metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have alumi-
num foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless key (that
emits radio waves) is being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• 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 con-
tent or metallic objects are
attached to the rear window

2064-2. Opening, closing and locking the doors
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted.
If the doors cannot be
locked/unlocked using the smart key
system, lock/unlock the doors by
performing any of the following:
●Bring the electronic key close to
either front door handle and oper-
ate the entry function.
●Operate the wireless remote con-
trol.
If the doors cannot be
locked/unlocked using the above
methods, use the mechanical key.
(  P.587)
If the hybrid system cannot be
started using the smart key system,
refer to P.588.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru- ment panel, luggage compartment
or 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 reception co nditions, it may
be detected by the antenna out-
side 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 locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electronic key is not
inside the vehicle, it may be possi-
ble 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 handle, 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 60 sec-
onds 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 possibilit
y that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation. Remove
the gloves and touch the lock sen-
sor again.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●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, follow the following correc-
tion procedures to wash the vehi-
cle:
• Place the electron ic key in a loca-
tion 6 ft. (2 m) 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
key system. ( P.205)
●If the electronic key is inside the

2074-2. Opening, closing and locking the doors
4
Before driving
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-
cle. 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.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that the doors unlock
before pulling the door handle
again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.622)
●Battery-saving mode can reduce
the power consumption of elec-
tronic keys. ( P.205)
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close
to the vehicle when operating the
system from the outside of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key system does
not operate properly
●Locking and unlocking the doors:
Use the mechanical key.
(  P.587)
●Starting the hybrid system:
P.588
■Customization
Settings (e.g. smart key system)
can be changed.
(Customizable features: P.622)
If the smart key system has been
deactivated in a customized setting,
refer to the explanations for the fol-
lowing operations.
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.185, 587)
●Starting the hybrid system and
changing power switch modes:
P.588
●Stopping the hybrid system:
P.253
WARNING
■Caution regarding interfer-
ence with electronic devices
●People with implantable car-
diac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
keep away from the smart key
system antennas. ( P.203)
The radio waves may affect the
operation of such devices. If
necessary, the entry function
can be disabled. Ask your
Toyota dealer fo r details, such
as the frequency of radio waves
and timing of the emitted radio
waves. Then, consult your doc-
tor to see if you should disable
the entry function.

2084-2. Opening, closing and locking the doors
WARNING
●User of any electrical medical
device other than implantable
cardiac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
consult the manufacturer of the
device for information about its
operation under the influence of
radio waves.
Radio waves could have unex-
pected effects on the operation
of such medical devices.
Ask your Toyota dealer for details
for disabling the entry function.

2234-4. Adjusting the steering wheel and mirrors
4
Before driving
SymptomLikely causeSolution
The image is difficult to
see.
The mirror surface is
dirty.Clean the mirror surface
gently, using a soft dry
cloth.
Sunlight or headlights
are shining directly into
the Digital Rear-view
Mirror.Change to optical mirror
mode.
(If the light is coming
through, close the sun-
shade [if equipped].)
The image is difficult to
see.
• The vehicle is in a dark area.
• The vehicle is near a TV tower, broadcast-
ing station, electric
power plant, or other
location where strong
radio waves or electri-
cal noise may be pres-
ent.
• The temperature around the camera is
extremely high/low.
• The ambient tempera- ture is extremely low.
• It is raining or humid.
• Sunlight or headlights are shining directly into
the camera lens.
• The vehicle is under fluorescent lights,
sodium lights, mer-
cury lights, etc.
• Exhaust gas is obstructing the cam-
era.
Change to optical mirror
mode.
(Change back to digital
mirror mode when the
conditions have
improved.)
Foreign matters such as
water droplets or dust is
on the camera lens.
• Operate the dedicated camera cleaning
washer and clean the
camera lens.
( P.275)
• Change to optical mir- ror mode.

2905-5. Using the driving support systems
strong radio waves or electrical
noise may be present
●When a wiper blade is blocking
the front camera
●When in a location or near objects
which strongly reflect radio waves,
such as the following:
• Tunnels
• Truss bridges
• Gravel roads
• Rutted, snow-covered roads
• Walls
• Large trucks
• Manhole covers
• Guardrail
• Metal plates
●When near a step or protrusion
●When a detectable vehicle is nar-
row, such as a small mobility vehi-
cle
●When a detectable vehicle has a
small front or rear end, such as an
unloaded truck
●When a detectable vehicle has a
low front or rear end, such as a
low bed trailer
●When a detectable vehicle has
extremely high ground clearance
●When a detectable vehicle is car-
rying a load which protrudes from
its cargo area
●When a detectable vehicle has lit- tle exposed metal, such as a vehi-
cle which is partially covered with
cloth, etc.
●When a detectable vehicle is
irregularly shaped, such as a trac-
tor, sidecar, etc.
●When the distance between the
vehicle and a detectable vehicle
has become extremely short
●When a detectable vehicle is at an
angle
●When snow, mud, etc. is attached
to a detectable vehicle
●When driving on the following
kinds of roads:
• Roads with sharp curves or wind-
ing roads
• Roads with changes in grade, such as sudden inclines or
declines
• Roads which is sloped to the left or right
• Roads with deep ruts
• Roads which are rough and unmaintained
• Roads which frequently undulate or are bumpy
●When the steering wheel is being
operated frequently or suddenly
●When the vehicle is not in a con-
stant position within a lane
●When parts related to this system,
the brakes, etc. are cold or
extremely hot, wet, etc.
●When the wheels are misaligned
●When driving on slick road sur-
faces, such as when it is covered
with ice, snow, gravel, etc.
●When the course of the vehicle
differs from the shape of a curve
●When the vehicle speed is exces-
sively high when entering a curve
●When entering/exiting a parking
lot, garage, car elevator, etc.
●When driving in a parking lot
●When driving through an area
where there are obstructions
which may contact your vehicle,

4035-5. Using the driving support systems
5
Driving
the edge of the front or rear bumper
to the target stopping position (yel-
low)
*1 and approximately 1 ft. (0.3
m) (red) from the vehicle.
Moving object warning icon
Emergency support brake
control operation display
“BRAKE!” is displayed.
Intuitive parking assist dis-
play
 P.363
Rear camera washer switch*2
(if equipped)
Press shortly:
The rear camera washer operates
for a certain period of time.
Press and hold:
The rear camera washer operates
while the rear camera washer
switch remains pressed.
*1: The yellow lateral line is not dis- played when the target stopping
position is approximately 8.2 ft.
(2.5 m) or more away from the
vehicle.
*2: Refer to “Panoramic view moni-tor” of “Parking assist system” in
the “MULTIMEDIA OWNER’S
MANUAL”.
■Intuitive parking assist pop-up
display
Regardless of whether the intuitive
parking assist is off or on ( P.364),
if an object is de tected by the intui-
tive parking assist when the
Advanced Park is operating, the
intuitive parking assist pop up dis-
play will automatically be displayed
over the guidance display.
■Brake control operation when
Advanced Park is operating
While the Advanced Park is operat-
ing, if the system determines that
the possibility of collision with
detected moving or stationary object
is high, the hybrid system output
restriction control and brake control
will operate.
If brake control operates, Advanced
Park operation will be suspended
and a message will be displayed on
the multi-information display.
■Buzzer
Depending on surrounding sounds
or sounds from other systems, it
may be difficult to hear the buzzer of
this system.
■If a black screen is displayed on
the Multimedia Display when
the Advanced Park is operating
The system is being affected by
radio waves or may be malfunction-
ing. If a radio antenna is installed
near a camera, move it to a location
as far from the cameras as possible.
If a radio antenna is not installed
near a camera, and the screen does
not return to normal after turning the
power switch off and then starting
the hybrid system again, have the
vehicle inspected by your Toyota
dealer.
The perpendicular parking (for-
ward/reverse) function can be
used if the target parking space
can be detected when the vehi-
cle is stopped close and perpen-
dicular to the center of the
parking space. Also, depending
on the condition of the parking
space, etc., if it is necessary to
change the direction of travel of
C
D
E
F
Perpendicular parking
(forward/reverse) function