Using the “Dial” or “Call” Command
1. Press and hold 
for two seconds.
2. Say “Dial” or “Call.” 3. Say the entire number without pausing, or say the name tag.
Once connected, the person called will be heard through the audio speakers.
See also:
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...
Inserting a CD(s) (Six-Disc CD Player)
LOAD : Press to load CDs into the CD player. This CD player holds up to six CDs.
To insert one CD:
1. Press and release the LOAD button.
2. Wait for the message to insert the disc.
3. Load a CD. I ...
Remote Start Ready
If the vehicle does not have the remote vehicle start feature, it may have the remote start ready feature.
This feature allows your dealer to add the manufacturer's remote vehicle start feature.
See ...