Stablitrak and Trailer Break Issue

[Menso Gaming]

I had a battery issue a few weeks ago which I made a thread about. Now I'm back to a similar issue but I'm having a " Service Stabiltrak" and "Service Trailer Brake" pop up. I had a new battery replaced 2 weeks ago and the issue is consistent every time I start my truck. When I drive it feels like it's stuck in 4x4 and jitters, I feel I lost power steering aswell and I need to drove it in w High to drive it comfortably. The lights I have on dash are Traction Control and ABS. Battery and Alternator tested good at Autozone and Valvoline. 

 

2016 Chevy Silverado 1500 LT Z71

[Heath7400]

My stabiltrak warning light kept coming on constantly and the ABS light also, turned out to be a broken wire on the wheel speed sensor. I have problems with the service trailer brake coming on, I havent figured it out yet, I did squeeze the things on the dash and it hasnt come back on and its been about 50 miles so far.