I have a 2017 jeep renegade latitude. Today it was -26 when i went to leave for work and pushed the button to start my car and everything lit up but wouldnt even try to turn over. I spent hours testing the battery to trying to warm the starter. I finally noticed on my dash a small light on that was regular and it looks like a small lightning bolt. I looked it up and found out its the ecm electronic control module i believe. Which states if the pedals arent lined up properly it stops the car from turning over. So i started to apply heat and pb blaster to the mechanical connections and kept wiggling and moving following through the firewall. After about 30 minutes it finally tried to turn over but didnt make it. So i kept repeating the processing moving the gas pedal and brake pedal and eventually it must have worked and the car turned over and slowlllly started but it did work. So hopefully anyone else has this problem and the battery test good around 12.5ish starter is ok this can help you solve an annoying problem i see that a "cold weather" reneage seems to have and if you see the 4wd service light come on just ignore it, it is a know glitch with these renegades that goes away and nothing is wrong.