GMC Terrain: Customer Information / Customer Assistance for Text Telephone (TTY) Users
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 in the U.S.
can communicate with GMC by
dialing: 1-888-889-2438. TTY users
in Canada can dial 1-800-263-3830.
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 and Puerto Rico
GMC Customer Assistance Center
P...
Online Owner Experience (U.S.) my.gmc.com
The GMC online owner experience
is a one-stop resource that allows
interaction with GMC and keeps
important vehicle-specific
information in one place...
Other information:
The ACC front camera can be
affected by poor lighting conditions,
and ACC may have limited
performance when:
There are changes in brightness,
such as entering and exiting
tunnels, bridges, and
overpasses.
Low sun angles cause the
camera to not detect objects,
or it is more difficult to detect
objects in the same traffic lane...
Air Vents
Turn Signal Lever. See Turn and Lane-Change Signals.
IntelliBeam System Button (If Equipped). See Exterior Lamp Controls.
Instrument Cluster (Base and Midlevel) or Instrument Cluster
(Uplevel).Driver Information Center (DIC) Display. See Driver
Information Center (DIC) (Base and Midlevel) or Driver Information
Center (DIC) (Uplevel)...