2014 Ram 2500 Indicator During Preheat

[Curt H.]

I have an indicator that lights up during preheat and can't find out what is means. Unable to find in the manual. It is the 0 - S - 75 thing to the right of the tac.

 

[Ram4Sam]

It means the grid heaters in the intake are energized and heating up the intake air for a cold start......and using a whole lot of amps.

Sam

 

[Bug Out]

From what I know, when the preheat sign is on, wait until it goes out before cranking the motor.