Originally Posted by crashoverride
I run my AC year round it drys the air out and is especially useful in unforgiving the windows. In fact on Hondas you turn the defroster on the AC lights up automatically.
But dude seriously the dimming isn't a feature. So it's an electrical issue. Thus you need to diagnose or start down list of electrical components main two are battery and alternator. Did you get same size battery, did the battery get properly registered? Then turn things off like AC radio heated seats etc... Best of luck sounds like its bugging you enough that I hope you find out what the gremlin is soon.
Well the dealer mentioned that if the alternator is not working/charging at 100% I would get a light in the dash. Now if the battery is having issues (not charging all the way, not registered correctly) then I would not see a light. As I mentioned in a previous post I am going to look at charging the battery tonight at about 1.5 amps as recommended by the dealer.