Had a bit of snow and ice and got stuck on a hill...Traction control kicked in but still couldn't get moving. Finally, I deactivated the tracs and tried spinning up. The winter mode arrow began to flash. I played with the tranny switches. I finally made it up the hill, but the lights continues to flash. I got down the interstate quite a few miles and then the check engine light came on! No misses, running fine and the transmission seems to be shifting all four gears? Anybody got any ideas on this one? Thank you so much....