PEUGEOT 508 Handbook page 303

The altitude is not displayed.
My navigation is no longer connected.
Radio
QUESTION
The reception quality of the tuned radio station
gradually deteriorates or the stored stations are
not working (no sound, 87.5 MHz is displayed,
etc.).
On starting, the initialisation of the GPS may
take up to 3 minutes to receive more than 4
satellites correctly.
Depending on the geographical environment
(tunnel, etc.) or the weather, the conditions of
reception of the GPS signal may vary.
During start-up and in certain geographical
areas, the connection may be unavailable.
RESPONSE
The vehicle is too far from the transmitter of
the station or no transmitter is present in the
geographical area.
The environment (hills, buildings, tunnels,
basement car parks, etc.) blocks reception,
including in RDS mode.
The aerial is absent or has been damaged (for
example when going through a car wash or into
an underground car park).
PEUGEOT Connect Nav
Wait until the system has started up completely
so that there is GPS coverage by at least
4 satellites.
This behaviour is normal. The system is
dependent on the GPS signal reception
conditions.
Check that the connected services are
activated (settings, contract).
SOLUTION
Activate the "RDS" function by means of the
short-cut menu to enable the system to check
whether there is a more powerful transmitter in
the geographical area.
This phenomenon is normal and does not
indicate a failure of the audio equipment.
Have the aerial checked by a dealer.
.
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