Honda Civic Sedan 2014 Owner's Manual page 223

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Changing the Screen Aspect
1. Select Settings to go to the Settings
screen.
2. Select Audio.
3. Select Aspect Ratio Adjustment.
4. Select the setting you want.
5. Select OK.
uuAudio System Basic OperationuPlaying a Video Using the HDMI®
1Playing a Video Using the HDMI®
This feature is limited while driving. To play videos,
stop your vehicle and apply the parking brake.
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