Turn-by-Turn Navigation
1. Push 
to connect to a live Advisor.
2. Request directions.
3. Directions are downloaded to the vehicle.
4. Follow the voice-guided commands.
See also:
Store a Name Tag for Speed Dialing
1. Push System responds: “OnStar
ready.”
2. Say “Store.” System responds: “Please say the number you would like to store.”
3. Say the entire number without pausing. System responds: ...
Windshield Wiper/Washer
Windshield Wiper/Washer
The front wiper control is located on the turn and lane-change lever.
The windshield wipers are controlled by turning the band with
on it.
: For a single wipe, turn to ...
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 communicat ...