See also:

Playing from a USB (Radio with CD and Touchscreen)
A USB mass storage device or Microsoft Transfer Protocal (MTP) device can be connected to the USB port. The USB port is in the center console. The USB icon displays when the USB device is ...

Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors. Call 1-800-521-7300, or write: Buick Customer Assistance Center P.O. Box 33136 ...

Check Gas Cap Light
If your vehicle has this light, it will come on if your gas cap is not securely fastened. ...