Yesterday about 10 minutes after filling my gas tank, I got a series of lights and indications. "Traction Control Off","Stabilitrack Off", "Service Traction Control", "Park Assist Off", also the Parking Brake light, traction control light and ABS light all came on. I drove 3-4 miles back home. The lights were on and off during that drive.
Today the lights have been on and off again and I noticed now that it is shifting hard from 1st to 2nd and I can feel a difference in the traction almost like the 4 wheel drive is engaged. I went to an auto parts store and got a code scan which indicated multiple lost communication codes, "Lost Communication with ECM", "Lost Communication with PCM", "Lost Communication with Transfer case". There were 12 codes in all I think and all seemed to be communication codes. I read somewhere last night that abnormal ethanol content in the fuel can cause lots of computer operation issues and since I had just filled my tank when this happened I'm wondering if this could be the problem.