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:
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lane marking is
crossed...
Navigation requires a specific
OnStar or connected service plan.
Press to receive Turn-by-Turn
directions or have them sent to the
vehicle’s navigation screen,
if equipped.
Turn-by-Turn Navigation
Press to connect to an
Advisor.
Request directions to be
downloaded to the vehicle...