Is it normal for the dash (speedo, Tach, etc) lights to go dim when switching on parking lights? In all other light settings the dash lights stay illuminated.

 

are you saying your dash only dims when parking lights are on, but is brighter when the headlights are on?

 

you can adjust brightness of the instruments for headlights on and off seperately, just use the buttons on the left side to increase.
I have the brightness turned down when my headlights are on so it isn't blinding and distracting at night and I have it at max brightness with lights off for when I'm wearing sunglasses.

 

Yes, the dash lights dim when parking lights are on. The dash illuminates normally when headlights are off AND on, but go dim when light switch is in parking light setting.

 

THIS IS STUPID! Infiniti needs to fix this ASAP.