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:
Entry Lighting
For vehicles with courtesy lamps, they come on and stay on for a set time whenever is pressed on the Remote Keyless Entry (RKE) transmitter.
If a door is opened, the lamps stay on while it is open a ...
Battery Load Management
The vehicle has Electric Power Management (EPM) that estimates the battery's
temperature and state of charge. It then adjusts the voltage for best performance
and extended life of the battery. ...
Driver Safety Belt Reminder Light
There is a driver safety belt reminder light on the instrument panel cluster.
When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their safety bel ...