See also:

USB Port
For vehicles with a USB port, the following devices may be connected and controlled by the infotainment system: ► iPods ► PlaysForSure Devices (PFD) ► USB Drives ► Zunes ...

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 Detroi ...

Instrument Panel Illumination Control
The brightness of the instrument panel lighting and steering wheel controls can be adjusted. : Move and hold the thumbwheel up or down to brighten or dim the lights. ...