dash sensors/relays

Just need a little info. Hope someone can clarify this for me.

Recently my 200 olds intrigue was in an accident and had r.fender and bumper damage. Headlamp had to replaced etc. Well ipicked up the car from the body shop and all ws well until darkeness hit and I had no dash lites , no odometer, radio worked but no lites on that either. When daytime hits all is fine. Just when evening comes no dashboard lites or odometer. speedometer works but can't see it. Is there a sensor that controls that? Or maybe a relay. I have to take it to the dealer and just don't know what something like that costs. Hope somebody knows about this.

Thanks,

lookingdeere1