Why is my 2013 chevy malibu backup camera not working?

The backup camera in your 2013 Chevy Malibu is a relatively simple device, it captures a video signal and sends it to the display. Which is why most common problems that people have with it are actually caused by some other part that is just interrupting the camera's signal. The most common cause for the display to stop functioning when in reverse is bad wiring, usually in the trunk lid near the camera itself. Another problem that may cause the camera to stop functioning is a failed signal converter but that will usually affect the entire system and not just the back up display. One quick fix to try is disconnecting your battery for 10 - 15 minutes and then reconnecting it. This will reset all the internal systems and can help get the electronics working again.