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8. Troubleshooting guide
SymptomPossible cause Possible solution
Each volume level (ring tone, incoming voice or
outgoing voice) is different. Each volume level is not adjusted properly. Adjust each volume level properly.
The antenna display is different between the
navigation screen and a cellular phone screen.
Making or receiving a call is unavailable even
though the antenna display shows that it is
possible to do so. The antenna display varies depending on the model
of cellular phone.
This does not indicate a malfunction. The antenna display
and remaining battery level shown on the navigation screen
may be different from those shown on the cellular phone
screen. Use them as a reference.
A voice cannot be heard clearly when using a
cellular phone behind tall buildings. Some structures such as tall buildings, etc. may
cause irregular reflection of radio waves or comple-
tely shut out radio waves that are used for cellular
phones. Move to a place without tall buildings.
Noise is heard when using a cellular phone
under/near areas of elevated railroads, high
voltage electric power cables, traffic signals,
neon billboards, etc. Electromagnetic waves that are generated from radio
devices may adversely affect the cellular phone.
This is not a malfunction.
Noise is heard in the sound from the audio
system while using a cellular phone. Radio waves that are generated from a cellular phone
may adversely affect the sound from the audio
system. This is not a malfunction.
Sound skips or stutters. The cellular phone may have turned on the wireless
LAN (Wi-Fi). Turn off the wireless LAN (Wi-Fi).
Phonebook cannot be downloaded. An error occurred during the phone pairing process. Please delete the Bluetooth
