OnStar

Navigation

~1min read

OnStar navigation requires the Directions and Connections service plan.

Push GMS Sierra: Navigation. Turn-by-Turn Navigation to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the vehicle from Google Maps™ or MapQuest.com. The OnStar mapping database is continuously updated. Visit www.onstar.com for coverage maps.

Test yourself

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