07 Legacy Outback Wagon Interior Dome Light Won't Turn On After Parking in the Sun. This is an intermittant problem that I have solved by reaching back and hitting the light with the palm of my hand. When leaving work after parking in the sun on a hot day, I'll open the door and the interior dome light won't turn on. I'll get in and close the door, give the light a rap, then open the door. Then the light works. The problem hasn't repeated itself during this cold, MN winter. Since it's so intermittant, I haven't mentioned it to my dealer yet. Is this a common problem?