no power steering and CAN Bus problems in my 2012 Challenger

I was driving my 2012 dodge challenger sxt V6 3.6L to get my interlock device recalibrated going 60 down the highway when the cruise control kicked off and the traction control light came on then the transmission kicked really hard and my dash said "service power steering" I pulled over and shut my car off. when I tried to start it again the frst few times it didnt seem to want to start now itl start fine but I have no power steering the transmission kicks really hard when you put it in gear and the P R N D all have boxes around them along with an 8 on and off. I plugged in a scan tool and I keep get messages saying lost communication with many of the modules and sensors and ignition along with the steering angle sensor. any idea what is wrong?