Volvo 2012 S80 Owner's Manual page 223

key being in the ignition switch by pressing the
On/Off button.
While the engine is being started the infotain-
ment system is switched off temporarily and
continues once the engine has started.
NOTE
Avoid using the Infotainment system when
the engine is switched off as this loads the
battery.
05 Infotainment system
General information on infotainment
05
221