The "exterior light problem" is illuminated when i put the parking, and headlights on. I checked to see if any of the bulbs are burnt out--all are fine. The headlights, sidemarkers, taillights work fine, even when i depress the brake. When i shut the lights off, the "exterior light problem" indicator goes away as normal. Again, this light only comes on when i have the parking, and headlights on.