2011silveradolt

I have a 2011 Silverado Lt 4X4 with 90,000 miles on it. Last Friday I had the transmission, both differentials and the transfer case serviced. On Monday I was on my way home from work driving straight at about 25 MPH and I got the dreaded chime with flashing SERVICE TRACTION CONTROL, SERVICE STABILITRAK. I did not have a reduce engine power warning. So I continued to drive it back to the service shop and had them check the fluids. I verified with them all was good with the fluid levels. I had no hard shifting and no lack of power during the drive. I had this light once before after installing my lift kit and it was because of the connector at the front transfer case. So I then decided to shut my truck off and completely remove the connector and then reinstall it. I started it up and boom the warning were gone. So I thought okay we are good, well nope. A few days later around the 100 mile mark it happened again so I pulled the connector and put it back and all was good. Can someone tell me what is going on with this?