The "Eco" light is turned on ------ but you do not need the light to know when MDS activates, you can both feel it and hear it. It just no longer comes on since they did the U61 recall flash and that was done several thousand miles ago.
I had the same updates done last summer and got similar results as you. MDS has not been on since they did the U61 Power train control module flash. Truck still runs good, just no MDS.
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