OnStar

Connections

~1min read

OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage maps.

Hands-Free Calling

1. Push GMS Sierra: Connections. “OnStar ready.” 2. Say “Dial.” System responds:. System responds:

Test yourself

A quick GMC Sierra quiz: every answer comes with an explanation and a link to the manual page.