See also:

OnStar® Destination Download (US and Canada)
OnStar Destination Download (if equipped) is a service available for OnStar subscribers that makes operating your navigation system much simpler. It allows subscribers to request and receive navig ...

Engine Heater
The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant h ...

Playing from the Hard Drive Device
HDD (Hard Drive Device): Press the HDD button to start playing tracks from the HDD. HDD displays and playback resumes from where it was last stopped. HDD Playback ModeThe infotainment system ...