I have this wierd problem with my D5,D4,D3,D2 and D1 lights. Only during DAYTIME when I press or release acceleration whether I'm in those driving modes light starts to dim or brightened. My alternator and battery have normal readings. The car has 105K, tranny was replaced about 35k ago (2 years). Could it be some kind of sensor inside dashboard or loose connector? What possible could it be. Please experts chime in.

 

happens when im in D5 too. I think sometimes it has to do with how the tranny is acting cause i swear it lightens when I get off the gas sometimes. Happens whether the headlights are on or not for me.

not sure what causes it, doesnt really matter to me unless D5 starts flashing.
If it ain't broke, dont fix it. especially when it comes to tranny stuff with my car. Its been going pretty good for the last 30k, swapped new pressure switches in there to see if it would help the shifts and the tranny didnt like it. Put the old ones back in.