GMC Sierra Owners Manual
NavigationOnStar / OnStar Services / Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
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.
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.
Using Voice Commands During a Planned Route
Cancel Route
1. Push 
. System responds:
“OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Yes.” System responds:
“OK, route canceled.” 3. Say “Goodbye.” Exits voice commands.
Route Preview
1. Push . System responds:
“OnStar ready,” then a tone.
2. Say “Route Preview.” System responds with the next three maneuvers.
3. Say “Goodbye.” Exits voice commands.
Repeat
1. Push 
. System responds:
“OnStar ready,” then a tone.
2. Say “Repeat.” System responds with the last direction given, then responds with “OnStar ready,” then a tone.
3. Say “Goodbye.” Exits voice commands.
Get My Destination
1. Push . System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.” System responds with miles to the destination, then responds with “OnStar ready,” then a tone.
3. Say “Goodbye.” Exits voice commands.
Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps™ and MapQuest.com to their Turn-by-Turn Navigation or screen-based navigation system.
When ready, the directions will be downloaded to the vehicle.
Destination Download: Push , then request the Advisor to download directions to the navigation system in the vehicle.
After the call ends, push the “Go” button on the navigation screen to begin driving directions.
Destinations can also be downloaded on the go. For information about eNav, Destination Download, and coverage maps visit www.onstar.com.
