2004 Pontiac GTO Owner's Manual - Page 149

Master Reset Your radio has a reset feature that allows you to return certain settings back to the factory default settings. Use this feature when adjustments have been made that affect the sound quality or operation of the radio and you are unsure of how to return to the original settings. This master reset feature will reset the following: Mobile Telephone Your radio includes a telephone adapter. The phone adapter and the radio are connected. If a mobile phone hands-free kit with the correct features, such as mute line and wiring for a separate speaker has been connected to it, the sound of the radio or CD will be muted when the phone rings, the voice of the caller will then be heard through the vehicle's speakers, and VOICE ON will appear on the display. When the call ends, the radio or CD will come back on. If the radio is off, it will turn on for a phone call if the vehicle's ignition is in ON or ACCESSORY. If a call is in progress when the vehicle is turned off, the radio will remain on until the call is completed. You can adjust the volume, bass, treble, fade, and balance when a phone call is in progress without affecting the radio settings. Bass, Treble, Fade, and Balance Confirmation beeps to on SDV to setting 2 DDL to on EQ to off. To perform the master reset, do the following: 1. Turn off the radio by pressing the OFF button. 2. Press the ON button and pushbutton 4 at the same time for about two seconds. After the radio has finished resetting, the radio will turn on with the original settings and no message will appear on the display. 3-51