Hi, everyone! We have a mystery for you to solve! We own a 2006 Georgetown and there is a red toggle switch on our instrument panel to the left of the steering wheel. It is lit up when the engine is running and we can't figure out what the switch does. We have tried flipping it in the on or off position, and haven't noticed a difference in the operation of anything. We are thinking it's a battery charger switch for the storage batteries? The previous owner had no idea what the switch was for. Can you help solve our mystery?