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:
Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addi ...
Loading the Vehicle for Off-Road Driving
WARNING
○ Unsecured cargo on the load floor can be tossed about when driving over rough
terrain. You or your passengers can be struck by flying objects. Secure the cargo
properly.
○ ...
Safety Belt Messages
BUCKLE SEATBELT
This message displays as a reminder when the safety belt is not buckled. ...