Electrical Glitch? Truck starting on own

[Newton86]

So my 2014 Silverado is going crazy. It keeps telling me to service theft deterrent system, service tire monitor system, service stabilitrack, “PRNDM” flashes. Well along with these issues my transmission was going out so I had it replaced, everything was reprogrammed and updated. Transmission is great now but the other issues remain. Now I have a new issue to add. My truck randomly starts. The key is not in it. I have not pressed the key fob to start with remote start or anything it just starts right up. Anyone else experience this issue? Maybe the body control module? 

[1SLOW1500]

Bcm ground. Then check codes.

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[Newton86]

I don’t get codes and I have an appointment with the dealer but they didn’t believe me when I told them any of this. I had to take a video of it. I tried to upload here but it was too big lol

[txab]

You can host the video on youtube