2008 Saturn Astra Owner's Manual - Page 138

6-16 Infotainment OnStar® Volume For vehicles with OnStar, the OnStar Volume is used to set the maximum initial volume level for the OnStar system when it is turned on. To set OnStar Volume: 1. Press SOUND, then SETTINGS and select Volume from the menu. 2. Select OnStar IN. 3. Turn the multifunction knob to adjust the level. 4. Press the multifunction knob to save the setting. Start-up Volume The Start-up Volume is used to set the maximum initial volume level for the audio system when it is turned on. The maximum initial volume level is used when the volume level before turning the audio system off was higher than the maximum initial volume level set, or if the volume is blow the maximum level. To set the On Volume level: 1. Press SOUND, then SETTINGS and select Volume from the menu. 2. Select Start-up Volume. 3. Turn the multifunction knob to adjust the level. 4. Press the multifunction knob to save the setting. Speed-Dependant Volume Control (SDVC) SDVC automatically adjusts the volume for road and wind noise as the vehicle increases or decreases speed while driving. To adjust SDVC: 1. Press SOUND, then SETTINGS and select Volume from the menu. 2. Select SDVC. 3. Turn the multifunction knob to adjust the level. 4. Press the multifunction knob to save the setting.