GMC 2009 Sierra - Manual (Page 254)

DVD Distortion
Video distortion can occur when operating cellular
phones, scanners, CB radios, Global Position Systems
(GPS)*, two-way radios, mobile fax, or walkie talkies.
It might be necessary to turn off the DVD player when
operating one of these devices in or near the vehicle.
*Excludes the OnStar ® System.
Cleaning the RSE Overhead Console
When cleaning the RSE overhead console surface, use
only a clean cloth dampened with clean water.
Cleaning the Video Screen
When cleaning the video screen, use only a clean cloth
dampened with clean water. Use care when directly
touching or cleaning the screen, as damage could result.
Rear Seat Audio (RSA)
This feature lets rear seat passengers listen to and
control any of the music sources: radio, CDs, DVDs, or
other auxiliary sources. The rear seat passengers
can control the same music sources the front seat
passengers are listening to (dual control, is available
depending upon radio) or a different source. For example,
rear seat passengers can control and listen to a CD
through the headphones, while the driver listens to the
radio through the speakers. The rear seat passengers
have control of the volume for each set of headphones.
The RSA can be used even when the main radio is off.
The front audio system will display the headphone
icon when the RSA is on, and will disappear from the
display when it is off.
Audio can be heard through wired headphones (not
included) plugged into the jacks on the RSA. If your
vehicle has this feature, audio can also be heard
on Channel 2 of the wireless headphones.
To listen to an iPod or portable audio device through
the RSA, attach the iPod or portable audio device to the
front auxiliary input (if available), located on the front
audio system. Turn the iPod on, then choose the
front auxiliary input with the RSA SRCE button.
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