Oscar Gomez

Ok so my truck I drive it for a while I parked and the next day doesn't turn on it makes me makes me wonder it makes me wonder if it's the battery but then when I do jump start It says trailer breaker system and I don't know what's going on do I manually fix it myself on the computer or what do I do when I'm confused cuz I just took her I just got it out of the mechanic and I just spent $1,200 and it's just a problem in of problem I have 2015 Silverado and I don't know what's wrong send the wire and I put a lot of my trailers there I might have just when I unhooked it did it bad I did it wrong it is messing up my battery now won't turn. And if it does it says trailer brake system if please anybody can help I live in Oklahoma but I'm a Montana I travel a lot I'm traveling right now I mean if you're good at it I'll pay you if you can make it make my truck good my number is 918 860 38 28 my name's Oscar..........