2014 Silverado LTZ Non Stop Parking Break Chime/Warning followed by Steering Assist Reduced

[awallburg]

Good Morning, I joined specifically to see if anyone could help me figure out the issue that has me ready to rip my hair out. 

 

I have 2014 Silverado LTZ with a 6 inch lift and 35 inch tires, a little history may be important. The day after I bought the truck I started getting stabilitrack warnings when I would hit a bump, train tracks, etc... Took it back to dealer they replaced the wheel speed sensors and problem went away for a month or so and then came back occasionally I did some googling and found this can be potentially related to the lift, I replaced the Rotors and Pads with beefier setup for towing our camper over mountain pass and decided since I was already down there to replace the wheel speed sensors myself a couple years later. Not much later I began having issues with the ABS firing when it shouldn't and major braking concerns along with the stabilitrack firing non stop, I live in a very mountainy area and this was getting dangerous with the amount of snow we get so I pulled the ABS relay and the issues with ABS firing went away I just had the ABS warning light come on... now over the last 6 months I have added to my warnings - service 4wd (still works just fine), Parking sensor warnings off and on (sometimes they work sometimes they dont) and the worst one is that now while I driving about 10 min or so after starting I get non stop off on chimes from the parking brake warning along with the light flashing, it will go away at High Speeds but it is driving me absolutely insane. 

 

I will say that my battery is 6 years old, i checked the voltage and it is within normal range, I tried pulling the negative cable for 20 min to reset things and all of them came back, I am at a loss.... 

 

I did find a forum where someone said that the brake light/reduced steering issue was ECM, given the massive amount of issues I am inclined to believe but wanted to sanity check before i replaced it. 

 

Thanks in advance for the help.