2021 TOYOTA 4RUNNER radio antenna

512-2. Connectivity settings
2
Basic function
4RUNNER_NAVI_(U)
1Select “Security”.
2 Select the desired security
protocol.
1 Select “Access Point Name”.
2 Enter the desired access
point name (SSID) and select
“OK”.
1 Select “Channel”.
2 Check that the following
screen is displayed.
Select to change the chan-
nel selection to auto-
matic/manual.
When “Manual” is selected,
select to change the channel. 1
Set “Select Channel” to
“Manual”.
2 Select “Channel Number”.
3 Enter the desired channel
number and select “OK”.
 Channels 1 through 11 can be
selected.
●If a connected device is taken out
of the Wi-Fi® connection area, the
connection will be severed.
●If the vehicle is d riven out of the
cellular communic ation coverage
area, connecting to the internet
via the Wi-Fi
® hotspot will not be
possible.
●If a Bluetooth® device is used
while a device is connected using
the Wi-Fi
® hotspot function, the
communication speed may
decrease.
●If the vehicle is near a radio
antenna, radio station or other
source of strong radio waves and
electrical noise, communication
may be slow or impossible.
Changing the security pro-
tocol
Changing the access point
name (SSID)
Selecting a Wi-Fi
® connec-
tion channel
A
B
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●Use Wi-Fi® devices only when
safe and legal to do so.

522-2. Connectivity settings
4RUNNER_NAVI_(U)
The condition of Wi-Fi® connec-
tion appears on the right upper
side of the screen. ( P. 1 6 )
 Communication standards
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n (2.4GHz)
 Security
WPA™
WPA2™
• WPA™ and WPA2™ are trade- marks of Wi-Fi Alliance
®.WA R N I N G
●Your audio unit is fitted with
Wi-Fi® antennas. People with
implantable cardiac pacemak-
ers, cardiac resynchronization
therapy-pacemakers or implant-
able cardioverter defibrillators
should maintain a reasonable
distance between themselves
and the Wi-Fi
® antennas.
The radio waves may affect the
operation of such devices.
●Before using Wi-Fi® devices,
users of any electrical medical
device other than implantable
cardiac pacemakers, cardiac
resynchronization ther-
apy-pacemakers or implantable
cardioverter defib rillators 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.
Conditions displayed with
Wi-Fi
® icon
Specifications

1364-2. Radio operation
4RUNNER_NAVI_(U)
When problems occur with the SiriusXM tuner, a message will
appear on the screen. Referring to the table below to identify the
problem, take the suggested corrective action.
Refer to the table below to identify the problem and take
the suggested corrective action
MessageExplanation
“Check
Antenna”
The SiriusXM antenna is not c onnected. Check whether the
SiriusXM antenna cable is at tached securely. Contact your
Toyota dealer for assistance.
A short circuit occurs in the antenna or the surrounding
antenna cable. Contact your T oyota dealer for assistance.
“No Signal”The SiriusXM signal is too weak at the current location. Wait
until your vehicle reaches a location with a stronger signal.
“Chan
Unavailable”The channel you selected is not broadcasting any program-
ming. Select another channel.
“Ch Unsub-
scribed”
The channel you selected is no longer available. Wait for
about 2 seconds until the radio returns to the previous chan-
nel or “Ch 001”. If i t does not change automatically, select
another channel.

1454-3. Media operation
4
Audio/visual system
4RUNNER_NAVI_(U)engine switch is in ACC or ON,
the system automatically recon-
nects the portable player.
●If the Bluetooth® device is discon-
nected on purpose, such as it was
turned off, this does not happen.
Reconnect the portable player
manually.
●Bluetooth® device information is
registered when the Bluetooth®
device is connected to the Blue-
tooth
® audio system. When selling
or disposing of the vehicle,
remove the Bluetooth
® audio
information from the system.
(  P. 6 3 )
●In some situations, sound output
via the Bluetooth® audio system
may be out of syn c with the con-
nected device or output intermit-
tently.
To use the Bluetooth® audio
system, it is necessary to regis-
ter a Bluetooth
® device with the
system.
Registering an additional
device
1 Display the Bluetooth
® audio
control screen. ( P.143)
2 Select “Connect”.
3 Select “Add Device”.
 When another Bluetooth
®
device is connected, a confir-
mation screen will be dis-
played. To disconnect the
Bluetooth
® device, select
“Yes”.
WA R N I N G
●Do not operate the player’s con-
trols or connect to the Blue-
tooth
® audio system while
driving.
●Your audio unit is fitted with
Bluetooth® antennas. People
with implantable cardiac pace-
makers, cardiac resynchroniza-
tion therapy-pacemakers or
implantable cardioverter defibril-
lators should maintain a reason-
able distance between
themselves and the Bluetooth
®
antennas. The radio waves may
affect the operation of such
devices.
●Before using Bluetooth®
devices, users of any electrical
medical device other than
implantable cardiac pacemak-
ers, cardiac resynchronization
therapy-pacemakers or implant-
able cardioverter defibrillators
should consult the manufacturer
of the device for information
about its operation under the
influence of radio waves. Radio
waves could have unexpected
effects on the operation of such
medical devices.
NOTICE
●Do not leave your portable
player in the vehicle. In particu-
lar, high temperatures inside the
vehicle may damage the porta-
ble player.
Registering/Connecting a
Bluetooth® device

1514-6. Tips for operating the audio/visual system
4
Audio/visual system
4RUNNER_NAVI_(U)
4-6.Tips for operating the audio/visual system
●The use of a cellular phone inside
or near the vehicle may cause a
noise from the speakers of the
audio/visual system which you are
listening to. However, this does
not indicate a malfunction.
Usually, a problem with radio
reception does not mean there
is a problem with the radio  it
is just the normal result of condi-
tions outside the vehicle.
For example, nearby buildings
and terrain can interfere with FM
reception. Power lines or phone
wires can interfere with AM sig-
nals. And of course, radio sig-
nals have a limited range. The
farther the vehicle is from a sta-
tion, the weaker i ts signal will
be. In addition, reception condi-
tions change constantly as the
vehicle moves.
Here, some common reception
problems that probably do not
indicate a problem with the radio
are described.
■FM
Fading and drifting stations:
Generally, the effective range of FM is about 25 miles (40 km).
Once outside this range, you
may notice fading and drifting,
which increase with the distance
from the radio transmitter. They
are often accompanied by dis-
tortion.
Multi-path: FM signals are
reflective, making it possible for
2 signals to reach the vehicle’s
antenna at the same time. If this
happens, the signals will cancel
each other out, causing a
momentary flutter or loss of
reception.
Static and fluttering: These
occur when signals are blocked
by buildings, trees or other large
objects. Increasing the bass
level may reduce static and flut-
tering.
Station swapping: If the FM sig-
nal being listened to is inter-
rupted or weakened, and there
is another strong station nearby
on the FM band, the radio may
tune in the second station until
the original signal can be picked
up again.
■AM
Fading: AM broadcasts are
reflected by the upper atmo-
sphere  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.
Operating infor mation
NOTICE
●To avoid damage to the
audio/visual system:
• Be careful not to spill beverages
over the audio/visual system.
Radio

1908-1. Phone operation (Hands-free system for cellular phones)
4RUNNER_NAVI_(U)
To use the hands-free system
for cellular phones, it is neces-
sary to register a cellular phone
with the system. (P.36)
■Connecting a Bluetooth®
device
Registering an additional
device
1 Display the phone top
screen. ( P.188)
2 Select “Select Device”.
3 Select “Add Device”.
 When another Bluetooth
®
device is connected, a confir-
mation screen will be dis-
played. To disconnect the
Bluetooth
® device, select
“Yes”.
 Up to 5 Bluetooth
® devices
can be registered to the sys-
tem. If the maximum number
of devices are registered, reg-
istration cannot be performed
from the phone top screen.
4 Follow the steps in “Register-
ing a Bluetooth
® phone for
the first time” from step 5.
( P.36)
Selecting a registered device
1 Display the phone top
screen. ( P.188)
2 Select “Select Device”.
WA R N I N G
●Your audio unit is fitted with
Bluetooth® antennas. People
with implantable cardiac pace-
makers, cardiac resynchroniza-
tion therapy-pacemakers or
implantable cardioverter defibril-
lators should maintain a reason-
able distance between
themselves and the Bluetooth
®
antennas. The radio waves may
affect the operation of such
devices.
●Before using Bluetooth®
devices, users of any electrical
medical device other than
implantable cardiac pacemak-
ers, cardiac resynchronization
therapy-pacemakers or implant-
able cardioverter defibrillators
should consult the manufacturer
of the device for information
about its operation under the
influence of radio waves. Radio
waves could have unexpected
effects on the operation of such
medical devices.
NOTICE
●Do not leave your cellular phone
in the vehicle. The temperature
inside may rise to a level that
could damage the phone.
Registering/Connecting a
Bluetooth® phone