my brake light (on the dash) comes on very very faintly.. it started on a long trip out to california the other week. it comes on very faintly and as i hit a bump it my get a little brighter or dimmer. after while it goes off... i have a 2004.5 2500hd cc 20K. should i be worried about this?

Which brake light(s) are effected; left, right, high, trailer ?

I would be worried, and the people driving behind you.

Idahofox

guess i should have said.. its the brake light on the dash....