OnStar

See also:

TPMS Malfunction Light and Message
The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire warning light flashes for about one minute and ...

Time Shifting — Pause and Rewind Live XM
The Radio with DVD Audio, HDD, and USB has the ability to rewind 60 minutes of XM content. While listening to the radio, the content from the current station is always being buffered to the ...

Sunroof
If the vehicle has a power sunroof it will only operate when the ignition is in ON/RUN or ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Ignition Positions (Key Access) ...