Hello, i have a 2016 Evpress 2500. I recently noticed that my break lights come on a few moments after i start the engine. I replaced the break pedal position sensor. That did not correct the problrm. I replaced the power steering hydro boost (which was leaking) a few weeks ago and a rear break caliper about six weeks ago. I blead the line after replacing the caliper. I'm wonderind if any of those repairs could be the cause of my issue. Any ideas? Thanks in advance!

 

No. Brake calipers have nothing to do with brake lights.
You probably have a bad ground somewhere in your tail light harness.