Which is what my truck was as I forgot to plug poor Ol Blue in one night! The battery froze, I lost all the programming for my Ford Sync, no GPS which is helpful on ice roads and logging roads, no radio, no clock, only had the basics of lights, and speedometer, odometer….You misspelled dead.
Had to drive 3 hrs to town to get reprogrammed. A whole days pay lost because of my stupidity! Learnt my lesson, now I plug it in if it’s going to be below -10C.