GMC 2010 Acadia Owner's Manual page 230

7-42 Infotainment System
Battery Replacement
To change the remote control
batteries:
1. Slide the rear cover back, on the
remote control.
2. Replace the two batteries in the
compartment. Make sure that
they are installed correctly, using
the diagram on the inside of the
battery compartment.
3. Replace the battery cover.
If the remote control is to be stored
for a long period of time, remove the
batteries and keep them in a cool,
dry place.
Tips and Troubleshooting Chart
Problem
No power.
The picture does not fill the screen.
There are black borders on the top
and bottom or on both sides or it
looks stretched out.
In auxiliary mode, the picture moves
or scrolls.
The remote control does not work.
Recommended Action
The ignition might not be turned
ON/RUN or in ACC/ACCESSORY.
Check the display mode settings in
the setup menu by pressing the
display menu button on the remote
control.
Check the auxiliary input
connections at both devices.
Check to make sure there is no
obstruction between the remote
control and the transmitter window.
Check the batteries to make sure
they are not dead or installed
incorrectly.