Following a snow storm I started my 2015 Wrangler Sport in the driveway to warm it up and clear the snow with no problems. More snow came 2 days later and when I went to start it up 4 days later I now have all the warning lights lit up and chiming with a hot oil warning. The transmission temp reads -58F. The vehicle starts and drives but the speedometer does not work. What the heck happened and what needs to done to get back to normal? It rarely snows in south Texas and this has never happened before.