My 2010 Jeep grand cherokee limited has 3 tail light bulbs: The reverse light, the brake/ turn signal light, and a third right next to the brake/turn signal bulb. What does this third bulb do? I tried everything and can't get it to turn on. If it's where the turn signal or brake light is supposed to come from, does someone know how to rewire it so the assembly works properly? Thanks!
3 tail light bulbs, 1 doesn't do anything
