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The cradle comes off the attachment surface.
Attachment strength weakens if the surface of the
suction cup or attachment surface becomes dirty.
tClean the surface of the suction cup and the
attachment surface with a soft, wet lint-free cloth
(page 11).
Navigation
GPS signal cannot be received.
Firstly, read the GPS overview (page 7), then check the
GPS status by touching in the main menu c
“General” c “GPS Status.”
•The system cannot receive GPS signals due to an
obstruction.
tMove your car to a place where signals can be
received clearly.
• There is an obstacle in front of the GPS antenna.
tInstall the unit where the signal is not interrupted
by the body of the car, etc.
•GPS signal reception may be poor depending on the
material of the car’s windshield.
tUse the optional External GPS Antenna VCA-42.
The car position on the map does not match
the current road.
The error margin of the signal from the GPS satellites
is too large. A maximum error margin of a few
hundred meters can exist.
Voice guidance cannot be heard.
The volume is set too low.
tRaise the volume.
The demonstration mode starts automatically
even if no operation is performed.
tTurn off the auto demonstration mode by touching
in the main menu c “General” c
“Demonstration Mode.” Then, confirm that
“Automatic Demonstration” is set to off.
Bluetooth function (NV-U94T/U74T only)
The connecting device (cellphone, etc.) cannot
detect this unit.
tSet “Bluetooth Signal” to “ON.”
• While connecting to a Bluetooth device, this unit
cannot be detected from another device.
tDisconnect the current connection and search for
this unit from another device.
Bluetooth connection is not possible.
tPerform pairing again.
tCheck the pairing and connection procedures in the
manual of the other device, etc., and perform the
operation again.
tGo to the Sony website to verify that the other
device is one that can be connected to this unit.
• Depending on the other device, searching from this
unit may not be possible.
t Search for this unit from the other device.
• Depending on the status of the other device,
searching from this unit may not be possible.
tSearch for this unit from the other device.
The name of the detected device does not
appear.
tPerform pairing again.
• Depending on the status of the other device, it may
not be possible to obtain the name.
The caller’s voice volume is low.
tAdjust the volume by touching +/– in the display.
Echo or noise occurs in phone call
conversations.
tLower the volume.
tIf the ambient noise other than the phone call sound
is loud, try reducing this noise. E.g.: If a window is
open and road noise, etc., is loud, shut the window.
If the air conditioner is loud, lower the air
conditioner.
The sound quality of the caller’s voice is poor.
Phone sound quality depends on reception conditions
of cellphone.
tMove your car to a place where you can enhance
the cellphone’s signal if the reception is poor.
Some functions do not work.
tCheck that the connecting device supports the
functions in question.
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