OnStar®
If the vehicle is equipped with an active OnStar system, that system may also record data in crash or near crash-like situations. The OnStar Terms and Conditions provides information on data collection and use and is available in the OnStar glove box kit, at www.onstar.com (U.S.) or www.onstar.ca (Canada), or by pressing the 
button and speaking to an advisor.
See also:
What to Use
When windshield washer fluid is needed, be sure to read the manufacturer's instructions
before use. If operating the vehicle in an area where the temperature may fall below
freezing, use a flu ...
Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper
operation of the malfunction indicator lamp as may be required for emission inspection
purposes. With the vehicle ...
Return to Factory Settings
Select Return to Factory Settings to
return all of the vehicle
personalization to the default
settings. Turn the Menu knob to
select Yes or No. Press SELECT to
confirm and go back to the
l ...