GMC 2011 Sierra - Manual (Page 44)

Black plate (38,1) GMC Sierra Owner Manual - 2011
1-38 In Brief
If you try to add, connect, or modify
any equipment or software in the
vehicle, OnStar service may not
work. Other problems OnStar can’t
control may prevent service to you,
such as hills, tall buildings, tunnels,
weather, electrical system design
and architecture of the vehicle,
damage to important parts of the
vehicle in a crash, or wireless phone
network congestion or jamming.
See Radio Frequency Statement on
page 13‑19 for information
regarding Part 15 of the Federal
Communications Commission
(FCC) rules and Industry Canada
Standards RSS-210/220/310.
OnStar Steering Wheel
Controls
This vehicle may have a Talk/Mute
button that can be used to interact
with OnStar Hands-Free calling.
See Steering Wheel Controls on
page 5‑3 for more information.
On some vehicles, the Talk button
can be used to dial numbers into
voice mail systems, or to dial phone
extensions. See the OnStar Owner's
Guide for more information.
Your Responsibility
Increase the volume of the radio
if the OnStar Advisor cannot be
heard.
If the light next to the OnStar
buttons is red, the system may
not be functioning properly.
Push the
Q button and request a
vehicle diagnostic check. If the light
appears clear (no light appears),
your OnStar subscription has
expired and all services have been
deactivated. Push the
Q
button to
confirm that the OnStar equipment
is active.