LDSSILLS
Well-Known Member
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I posted about " Towing with a 3.6L Gas" in that thread I put information that my 2021 Rubicon would not stay in eighth gear and wanted to settle into sixth and sometime seventh.
The next day with the trailer removed the same thing occurred I thought it was the -15F temp and a "stiff" vehicle. Never seeing sixth gear. I did notice that on the same road on the return trip it was starting too like the eighth again.
But today at 4 degrees it was a different beast and upshifted for 7-8 as it should. You know down shifting on uphill stretches and upshifting to eighth on the flats and downhill.
Does anyone know if JEEP Rubicon's has an ECU learning system? You know, a system in which the ECU adapts to driving and environmental conditions?
Grandpa Larry
The next day with the trailer removed the same thing occurred I thought it was the -15F temp and a "stiff" vehicle. Never seeing sixth gear. I did notice that on the same road on the return trip it was starting too like the eighth again.
But today at 4 degrees it was a different beast and upshifted for 7-8 as it should. You know down shifting on uphill stretches and upshifting to eighth on the flats and downhill.
Does anyone know if JEEP Rubicon's has an ECU learning system? You know, a system in which the ECU adapts to driving and environmental conditions?
Grandpa Larry
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