GMC Sierra Denali 2017 Owner's Manual page 476

OnStar Hands-Free Calling
Make and receive calls with the
built-in wireless calling service,
which requires available minutes.
Make a Call
1. Press . System responds:
OnStar ready.
2. Say Call. System responds:
Call. Please say the name or
number to call.
3. Say the entire number without
pausing, including a 1 and the
area code. System responds:
OK, calling.
Calling 911 Emergency
1. Press . System responds:
OnStar ready.
2. Say Call. System responds:
Call. Please say the name or
number to call.
3. Say 911 without pausing.
System responds: 911.
4. Say Call. System responds:
OK, dialing 911.
Retrieve My Number
1. Press . System responds:
OnStar ready.
2. Say My number. System
responds: Your OnStar
Hands-Free Calling number is,
then says the number.
End a Call
Press . System responds: Call
ended.
Verify Minutes and Expiration
Press and say Minutes then
Verify to check how many minutes
remain and their expiration date.
Diagnostics
Advanced Diagnostics provides a
status of the vehicle s key systems
with a monthly e-mail, or by
pressing . If equipped, Diagnostic
Alerts can be received in real-time
via e-mail or text. The Proactive
Alerts feature (if available) can help
predict and alert of potential
OnStar
upcoming maintenance issues with
select components on the vehicle,
before they become a problem.
OnStar can also monitor and report
tire pressure, if the vehicle is
equipped with a Tire Pressure
Monitoring System.
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