2021 TOYOTA PRIUS PRIME roof

124
6. TIPS FOR OPERATING THE AUDIO SYSTEM
PRIUS PRIME_Navi_OM47D79U_(U)
20.03.26 18:38
Fading: AM broadcasts are reflected by
the upper atmosphere — especially at
night. These reflected signals can interfere
with those received directly from the radio
station, causing the radio station to sound
alternately strong and weak.
Station interference: When a reflected sig-
nal and a signal received directly from a ra-
dio station are very nearly the same
frequency, they can interfere with each
other, making it difficult to hear the broad-
cast.
Static: AM is easily affected by external
sources of electrical noise, such as high
tension power lines, lightening or electrical
motors. This results in static.
Cargo loaded on the roof luggage carrier,
especially metal objects, may adversely
affect the reception of XM Satellite Radio.
 Alternation or modifications carried out
without appropriate authorization may
invalidate the user’s right to operate the
equipment. 
“Made for iPod,” “Made for iPhone,” and
“Made for iPad” mean that an electronic
accessory has been designed to connect
specifically to iPod, iPhone, or iPad,
respectively, and has been certified by the
developer to meet Apple performance
standards.
 Apple is not responsible for the operation
of this device or its compliance with safety
and regulatory standards. Please note
that the use of this accessory with iPod,
iPhone, or iPad may affect wireless perfor-
mance.
 iPad, iPhone, iPod, iPod classic, iPod
nano, and iPod touch are trademarks of
Apple Inc., registered in the U.S. and
other countries. Lightning is a trademark
of Apple Inc.
 The Lightning connector works with
iPhone 5, iPhone 5C, iPhone 5S, iPhone
6, iPhone 6 Plus, iPhone 6S, iPhone 6S
Plus, iPod touch (5th generation), and
iPod nano (7th generation).
 The 30-pin connector works with iPhone
4S, iPhone 4, iPhone 3GS, iPod touch
(4th generation), iPod classic, and iPod
nano (6th and 7th generation).
AM
XM
iPod

133
1. VOICE COMMAND SYSTEM OPERATION
PRIUS PRIME_Navi_OM47D79U_(U)
20.04.15 12:52
VOICE COMMAND SYSTEM
4
1Press the talk switch.
2Say a category name or select
“Shortcut Menu”.
3Say the command displayed on the
screen.
Commands related with each function are
displayed on the screen of the each func-
tion tab. Some commonly used com-
mands are displayed on the screen of the
function tab.
 The tabs are found on the upper part of
the screen.
INFORMATION
● Voice guidance for the voice command
system can be skipped by pressing the
talk switch.
● Voice commands may not be recognized
if:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while voice
commands are spoken.
• The air conditioning speed is set high.
• The air conditioning vents are turned towards the microphone.
● In the following conditions, the system
may not recognize the command prop-
erly and using voice commands may not
be possible:
• The command is incorrect or unclear.
Note that certain words, accents or
speech patterns may be difficult for the
system to recognize.
• There is excessive background noise, such as wind noise.
● The ability to dial a contact using voice
commands may take some time after the
power switch is in ACCESSORY or ON
mode, especially when the phone has
many contacts.
VOICE COMMAND SYSTEM
OPERATION
The voice command system is operat-
ed by selecting a category correspond-
ing to each function.
Selecting or saying “Help”
prompts voice guidance to offer exam-
ples of commands and operation meth-
ods.

145
2. MOBILE ASSISTANT OPERATION
PRIUS PRIME_Navi_OM47D79U_(U)
20.04.15 12:52
VOICE COMMAND SYSTEM
4
The volume of the Mobile Assistant can
be adjusted using the “VOL” button or
steering wheel volume control switches.
The Mobile Assistant and phone call
volumes are synchronized.
INFORMATION
● The available features and functions
may vary based on the iOS version
installed on the connected device.
● Some Siri
® features are limited in Eyes
Free mode. If you attempt to use an
unavailable function, Siri
® will inform
you that the function is not available.
● If Siri
® is not enabled on the cellular
phone connected via Bluetooth®, an
error message will be displayed on the
screen.
● While a phone call is active, the Mobile
Assistant cannot be used.
● If using the navigation feature of the cel-
lular phone, ensure the active audio
source is Bluetooth
® audio or iPod in
order to hear turn by turn direction
prompts.
MICROPHONE
It is not necessary to speak directly into
the microphone when using the Mobile
Assistant. (Microphone location:
P.132)
INFORMATION
● Wait for the listening beeps before using
the Mobile Assistant.
● The Mobile Assistant may not recognize
commands in the following situations:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while the
Mobile Assistant is being used.
• The air conditioning speed is set high.
• The air conditioning vents are turned toward the microphone.

157
1. REAR VIEW MONITOR SYSTEM
PRIUS PRIME_Navi_OM47D79U_(U)
20.04.15 12:52
PERIPHERAL MONITORING SYSTEM
6
THE CAMERA
The camera for the rear view monitor
system is located as shown in the illus-
tration.
USING THE CAMERA
If dirt or foreign matter (such as water
droplets, snow, mud etc.) is adhering
to the camera, it cannot transmit a
clear image. In this case, flush it with a
large quantity of water and wipe the
camera lens clean with a soft and wet
cloth.
NOTICE
● The rear view monitor system may not
operate properly in the following cases.
• If the back of the vehicle is hit, the
position and mounting angle of the
camera may change.
• As the camera has a water proof con-
struction, do not detach, disassemble
or modify it. This may cause incorrect
operation.
• When cleaning the camera lens, flush the camera with a large quantity of
water and wipe it with a soft and wet
cloth. Strongly rubbing the camera lens
may cause the camera lens to be
scratched and unable to transmit a
clear image.
• Do not allow organic solvent, car wax, window cleaner or glass coat to adhere
to the camera. If this happens, wipe it
off as soon as possible.
• If the temperature changes rapidly,
such as when hot water is poured on
the vehicle in cold weather, the system
may not operate normally.
• When washing the vehicle, do not apply intensive bursts of water to the
camera or camera area. Doing so may
result in the camera malfunctioning.
● Do not expose the camera to strong
impact as this could cause a malfunc-
tion. If this happens, have the vehicle
inspected by your Toyota dealer as soon
as possible.

168
1. PHONE OPERATION (HANDS-FREE SYSTEM FOR CELLULAR PHONES)
PRIUS PRIME_Navi_OM47D79U_(U)
20.04.15 12:52
The following data is stored for every reg-
istered phone. When another phone is
connected, the following registered data of
the previously connected phone cannot be
read:
• Contact data
• Call history data
• Favorites data
• Image data
• All phone settings
• Message settings
INFORMATION
●The other party’s voice will be heard
from the front speakers. The audio sys-
tem will be muted during phone calls or
when hands-free voice commands are
used.
● Talk alternately with the other party on
the phone. If both parties speak at the
same time, the other party may not hear
what has been said. (This is not a mal-
function.)
● Keep call volume down. Otherwise, the
other party’s voice may be audible out-
side the vehicle and voice echo may
increase. When talking on the phone,
speak clearly towards the microphone.
● The other party may not hear you clearly
when:
• Driving on an unpaved road. (Making
excessive traffic noise.)
• Driving at high speeds.
• The roof or windows are open.
• The air conditioning vents are pointed towards the microphone.
• The sound of the air conditioning fan is loud.
• There is a negative effect on sound quality due to the phone and/or net-
work being used.
ABOUT THE CONTACTS IN
THE CONTACT LIST
INFORMATION
● When a phone’s registration is deleted,
the above-mentioned data is also
deleted.

273
6. TIPS FOR THE NAVIGATION SYSTEM
PRIUS PRIME_Navi_OM47D79U_(U)
20.04.15 12:52
NAVIGATION SYSTEM
8
Accurate current position may not be
shown in the following cases:
• When driving on a small angled Y-
shaped road.
• When driving on a winding road.
• When driving on a slippery road such as in sand, gravel, snow, etc.
• When driving on a long straight road.
• When freeway and surface streets run in parallel.
• After moving by ferry or vehicle carrier.
• When a long route is searched during high speed driving.
• When driving without setting the current position calibration correctly.
• After repeating a change of direction by going forward and backward, or turning
on a turntable in a parking lot.
• When leaving a covered parking lot or parking garage.
• When a roof carrier is installed.
• When driving with tire chains installed.
• When the tires are worn.
• After replacing a tire or tires.
• When using tires that are smaller or larger than the factory specifications.
• When the tire pressure in any of the 4
tires is not correct. 
Inappropriate route guidance may occur in
the following cases:
• When turning at an intersection off the
designated route guidance.
• If you set more than 1 destination but skip any of them, auto reroute will dis-
play a route returning to the destination
on the previous route.
• When turning at an intersection for which there is no route guidance.
• When passing through an intersection for which there is no route guidance.
• During auto reroute, the route guidance
may not be available for the next turn to
the right or left.
• During high speed driving, it may take a long time for auto reroute to operate. In
auto reroute, a detour route may be
shown.
• After auto reroute, the route may not be changed.
• If an unnecessary U-turn is shown or announced.
• If a location has multiple names and the
system announces 1 or more of them.
• When a route cannot be searched.
• If the route to your destination includes
gravel, unpaved roads or alleys, the
route guidance may not be shown.
• Your destination point might be shown
on the opposite side of the street.
• When a portion of the route has regula- tions prohibiting the entry of the vehicle
that vary by time or season or other rea-
sons.
• The road and map data stored in the
navigation system may not be complete
or may not be the latest version.
 If the vehicle cannot receive GPS sig-
nals, the current position can be
adjusted manually. For information on
setting the current position calibration:
P. 2 6 3
 After replacing a tire:  P. 2 6 4