Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
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 can communicate with GMC by dialing:
1-800-462-8583. TTY users in Canada can dial 1-800-263-3830.
See also:
The Inside
Here's where GM has really outdone itself in its new SUVs. Like the Tahoe,
the Yukon shows off one of the best interiors GM has ever mustered in a
mass-marketed vehicle. All the buttons are of abo ...
Compass Messages
CAL
This message is displayed when the compass needs to be calibrated. See Compass
on page 5‑5.
– – –
Three dashes will be displayed if the compass needs service. See your dealer
fo ...
Automatic Dimming
If equipped with an automatic dimming mirror, the driver outside mirror adjusts for the glare of the headlamps behind you. See Automatic Dimming Rearview Mirror on page 2‑17. ...