Vehicle Speed Messages
SPEED LIMITED TO XXX MPH (KM/H)
This message displays when your vehicle speed is limited to 128 km/h (80 mph) because the vehicle detects a problem in the speed variable assist steering system.
Have your vehicle serviced by your dealer.
See also:
DVD Distortion
Video distortion can occur when operating cellular phones, scanners, CB radios,
Global Positioning Systems (GPS)*, two-way radios, mobile faxes, or walkie talkies.
It might be necessary to turn off ...
Audio Output
Only one audio source can be heard through the speakers at one time.
An audio source is defined as DVD slot, CD slot, XM, FM-AM, front auxiliary jack, USB port, or rear auxiliary jack.
Press the O b ...
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 ...