I'm lucky if I get 6 months without the "chime" warning me of a lamp-out. It seems that it is always the taillight housing that is the problem. I clean-up the contacts with a pencil eraser & put some di-electric grease on the contacts & go for another 6 months.
I thought I heard that warranty covered a replacement bulb housing. I'm out of warranty, now, and am wondering if this is covered no matter what mileage you have on your truck.
Joe F. (Buffalo)