CITROËN C3 PICASSO 2012 Owner's Handbook Manual page 220

04 NAVIGATION - GUIDANCE
ADJUSTING THE GUIDANCE SPEECH SYNTHESIS
ADJUSTING THE VOLUME/DEACTIVATION
The volume of messages can be adjusted during the transmission
of the message using the volume adjustment control.
Press NAV to display the
"Navigation - guidance" menu.
Select " Guidance options " and confi rm.
Select " Set speech synthesis" and
confi rm.
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The volume setting of guidance messages is also accessible via the
"SETUP" / " Voice synthesis " menu.
Select the volume graph and confi rm.
Adjust the volume to the desired level
and confi rm.
Select "Deactivate " to deactivate voice messages.
Select " OK " and press the dial to
confi rm.