Can someone explain to me what the auxillary start button is for and when I would need to use it? It's located low on the dash in front of the drivers left knee.
The auxillary start switch typically allows current from the house battery to the starter in the event the chassis battery has insufficent current to start the engine.
Thanks Boss, I looked and looked and found no reference to this in the paper work. Dealer never told me about it either. This is kind of an important think to know....
2012 E450 auxillary start button?
Linear Mode
