Join Date: May 2015
Location: Western Massachusetts
Mentioned: 2 Post(s)
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Here's my theory: the Renegade was designed and built to meet a certain price point. They put in the lowest power alternator they could and geared it with pulleys to make it run as slowly as they could get away with to help fuel efficiency.
So when you are stopped or moving slowly the engine and alternator are also rotating slowly. An alternator's available output power varies in relation to the speed it is rotating. Slow speed = less available electrical power.
The power steering on our Renegades uses an electric motor, and of course, so do the power windows. More electrical loads+slow engine speed = dimming lights.