Buick Regal: Your Responsibility - OnStar® - Performance and Maintenance - In Brief - Buick Regal Owners ManualBuick Regal: 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 Push  to confirm that the OnStar equipment is active. 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 Keys, Doors and Windows to confirm that the OnStar equipment is active.

    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  for more information. On some vehicles, the Talk button can be ...

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    USB Flash Memory Device Error Messages (Models with navigation system)
    If you see an error message in the center display while playing a USB flash memory device, find the solution in the chart to the right. If you cannot clear the error message, take your vehic ...

    XM Radio Display Messages
    ‘‘LOADING’’ - XM is loading the audio or program information. ‘‘OFF AIR’’ - The channel currently selected is no longer broadcasting. ‘‘UPDATING’’ - The encryption code is ...

    Gasoline
    Fuel grade You should only refuel with unleaded premium-grade gasoline as this avoids damaging the catalytic converter. If engine running problems are apparent, have the cause checked immediat ...