Is it illegal to drive with your dome light on in pa?

It is considered a distraction from the glare it causes off the windshield.

It is best to pull over if you need to use the light and also if you need to use your cell phone.

Even if there is not a law, most times police have a law that they can pretty much put anything in to it.

Ex, wreck less endangerment, if you have you dome light on and served in your lane

or over the lane, a policeman could ticket you under this law.