Noticed something odd during this morning's commute. The light behind my AC/defroster/fan buttons started dimming, seemingly at random, and clicking when it dimmed. Got almost to work and realized that it was doing this whenever the nose of the 99 GV 2.5 V6 2WD 4 door was not into the sun. Whenever I turned and put the nose/dash into the morning sunlight, the light clicked and returned to regular brilliance. Soon as I turned away from the sun in the parking lot at work it clicked and dimmed again, so I got out and checked the running lights...which were on. All other lights, instruments function normally when it does this. So, wazzup with that? Is there a daytime/nighttime sensor somewhere? First time occurrence...or at least the first time I've noticed this. I purchased it used in July with 70K miles on the odometer, now the odometer is up to about 115K. Would this set a code? Perhaps I'll put the code reader on it this afternoon. Any input is welcome.