GMC 2007 Envoy - Manual (Page 148)

OnStar ® Steering Wheel Controls
Your vehicle may have a Talk/Mute button that
can be used to interact with OnStar
® Hands-Free
Calling. See Audio Steering Wheel Controls on
page 297 for more information.
On some vehicles, you may have to hold the
button for a few seconds and give the command
“ONSTAR” in order to activate the OnStar
®
Hands-Free Calling feature.
On some vehicles, the mute button can be used to
dial numbers into voicemail systems, or to dial
phone extensions. See the OnStar
® Owner’s
Guide for more information.
How OnStar ® Service Works
In order to provide you with OnStar ® services,
your vehicle’s OnStar ® system has the capability
of recording and transmitting vehicle information.
This information is automatically sent to an
OnStar
® Call Center at the time of an OnStar ®
button press, Emergency button press or if
your airbags or AACN system deploys. The vehicle
information usually includes your GPS location
and, in the event of a crash, additional information
regarding the accident that your vehicle has
been involved in (e.g. the direction from which
your vehicle was hit). When you use the Virtual
Advisor feature of OnStar
® Hands-Free Calling,
your vehicle also sends OnStar ® your GPS
location so that we can provide you with
location-based services.
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