Retrieve My Number
1. Push X. System responds: “OnStar ready.”
2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.”
See also:
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 ...
OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be
downloaded. The vehicle can be remote started, if equipped, or the doors can be
unlocked from anywhere there is cell ...
Increasing Speed While Using Cruise Control
If the cruise control system is already activated:
• Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it.
• To increase vehicle speed in smal ...