Using the “List” Command
1. Press and hold 
for two seconds.
2. Say “Directory.” 3. Say “Hands-Free Calling.” 4. Say “List.”
See also:
Ejecting a CD (Single CD Player)
EJECT: Press and release to eject the disc. Remove the CD when Remove Disc displays. If the disc is not removed, after several seconds the disc is automatically pulled back into the player. ...
Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty service, contact your dealer and request an appointment.
By scheduling a service appointment and advising the service consultant of your transportation needs, your ...
Online Owner Center
Manage your vehicle (U.S.) at gmc.com. Click on “Owners,” then “Manage My GMC/Owners Login.”
Information and services customized for your specific vehicle — all in one convenient place.
...