• April 9, 2024
• By: Steve

A common problem I have read about with C7 Corvette, especially the 2014, is a flickering infotainment screen. The wiring to the head unit screen is a terrible design since it is a fragile connection designed for a screen that is supposed to move. Since the screen can be lowered and raised, this puts a lot of tension and movement on the cable, and over time, it will fray and loosen. Why wouldn’t GM do a better job with this since the area behind the screen is DESIGNED to be used as a storage compartment?

Usually, your screen will look like the below, be dark, or have white pixels of snow. Mine did all three and could be repeated easily by lowering the screen and then putting it back up. The video below illustrates what mine was doing. The system will otherwise work fine playing the radio, media, or music from your paired phone.

You might get a little lucky and a wiggle may buy you some time until you need to replace the cable unless you use the storage compartment regularly. This involves a few minutes and popping two trim pieces off.

Wiggling the cable to “kind of” reseat it.

You can barely access the cables by pulling off some trim to get to them. If you can reach it with your finger or a tool, you can wiggle them and hope for the best. This worked for a day. lol

Complete replacement of the cable

You must order a cable from Amazon, linked here, to start this process. This will replace the blue cable that GM uses. Alternatively, you can use the cable next to it with the white/gray connector if your car doesn’t have the Performance Data Recorder option. The cable will be there, but unused. It is simply a matter of unplugging the cable on the left and then moving the other cable to occupy that slot.

The center dash must be stripped down, but watch the video below for tips. I recommend doing this to give you the best access to the connectors since you have to use a Dremel tool to cut a bit of plastic to get to the connector with your new cable. Securing the connections with the head unit out of the car will be easier.

Once you have the head unit out of the car, you will probably see a sad-looking cable from being bent and pulled with screen travel.

You will need a Dremel tool for the next part since we need to trim away some excess plastic to unhook the old cable and insert the new one. The plastic we are trimming doesn’t hold the cable in, so don’t worry about that.