GMC Terrain: Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment on page 9‑64. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum
capacity, this message may come on. Push Q to try the call again or try again after
driving a few miles into anoth ...
Privacy
The complete OnStar Privacy Statement may be found at www.onstar.com. Privacy-sensitive
users of wireless communications are cautioned that the privacy of any information
sent via wireless cellula ...
See also:
Hill start assist warning light
Refer to “Hill start assist warning light (MT
models)”. ...
Information Display
As an incoming call notification, you
will see the following display:
A notification that there is an
incoming call, or HFL is in use, will
appear on the navigation screen
when the audio sy ...
Roadside Assistance
The Mercedes-Benz Roadside Assistance Program offers technical help in the event
of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered
by our agents 24 hours a day, 365 d ...