2017 dodge ram 1500 5.7 hemi: when the eco light goes on does that mean it's in MDS mode?
Eco light means it is running in 4 cylinder MDS mode. When sufficient load is placed on the engine such as going up a slight grade, the engine will switch back to all 8 cylinders and the Eco light will go out. Please note that when in trailer / haul mode the ECO MDS system does not activate.
I have a 2014 Ram so I am well acquainted with the ECO function. Reading the manual should answer any other questions.
I have a 2017 Ram 1500 with the MDS. I do not see the Eco light but I feel n hear when it is operating on 4 cyl. Am I doing something wrong?
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