I figured
I arrived at the light being there to supply just enough light to prevent me having to grope around in the dark to locate the map light switches. It gives me a bit of spatial awareness, so to speak. The map switches are just to the left of it. Locate this light, then it's easy to locate the map light switches without diverting your eyes from the road. Simple. That's what I use it for.
It seems so dim I can't see it being adequate to help anyone see the shifter pattern.
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