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 LATCH system secures a child
restraint during driving or in a crash.
LATCH attachments on the child
restraint are used to attach the child
restraint to the anchors in the
vehicle. The LATCH system is
designed to make installation of a
child restraint easier...
If equipped, OnStar provides these
services:
With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted...