Using Universal Remote
Press and hold the appropriate Universal Remote button for at least half of a second. The indicator light will come on while the signal is being transmitted.
See also:
Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail GMC, the letter should be addressed to:
United States
GMC Customer Assistance ...
Shifting Into Four-Wheel Drive Low
When Four-Wheel Drive Low is engaged, vehicle speed should be kept below 72 km/h (45 mph).
Extended high-speed operation in Four-Wheel Drive Low may damage or shorten the life of the drivetrain.
To ...
Using the “Re-dial” Command
1. Press and hold for two seconds.
2. After the tone, say “Re-dial.” Once connected, the person called will be heard through the audio speakers. ...