It was -3 the other day and my bj74 didn't start. I plugged it in for less than an hour and it started no problem. I noticed that my batteries wrere a little low. My guage showed about 17V when I tried to start. I plan on gettin the batteries checked and cleaning everything else but it seems that the extra heat from my in line heater and batterie blankets made all the difference. I would like to have the glow sceen as a back up if there is a way toget around the temp sensor. As of now the only way the screen turns on is if it is about -15 or so. Any help would be great. Thanks J