See also:

Universal Remote System Operation
Using the Universal Remote System Press and hold the appropriate Universal Remote system button for at least half of a second. The indicator light will come on while the signal is being transmi ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Playing an MP3/WMA Disc
CD/DVD players with the MP3 feature are capable of playing an MP3/WMA on DVD+/−R, CD−R, or CD−RW discs. For more information, see MP3. ...