First, I had a headlight burn out about 6 months ago. No big deal, I put a new one in. About a month ago, one of the back lights for the passenger vent burned out. I replaced it as well. 2 days ago, the center vent back light burned out, so I replaced it too. Now last night, the back light for the climate control burned out. They all definitely have burnt filaments, its not a loose connection or anything. Is this normal to have 3 different interior bulbs all burn out within a month of each other? Is it just coincidence or after 10 years do they all burn out at almost the same time?