See also:

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. Press and request a vehicle ...

Emissions Inspection and Maintenance Programs
Some local governments may have programs to inspect the on-vehicle emission control equipment. For the inspection, the emission system test equipment is connected to the vehicle’s Data Link Conn ...

Side Blind Zone Alert (SBZA)
The vehicle may have a Side Blind Zone Alert (SBZA) system. Read this entire section before using the system. WARNING! SBZA does not detect vehicles rapidly approaching outside of the side ...