OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can be used to interact with OnStar hands-free calling. See Audio Steering Wheel Controls for more information.
On some vehicles, the mute 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.
See also:
Manual Rearview Mirror
Adjust the inside rearview mirror for
a clear view of the area behind your
vehicle. To avoid glare of the
headlamps from behind, push the
tab forward for daytime and pull it
for nighttime us ...
Collision/Detection Systems
Select the Collision/Detection
Systems menu and the following will
be displayed:
• Side Blind Zone Alert System ...
Roadside Assistance Program
U.S.: 1-800-252-1112
TTY Users: 1-888-889-2438
Canada: 1-800-268-6800
As the owner of a new Buick, you are automatically
enrolled in the Roadside Assistance program. This
program provides techn ...
