The bulb socket is held in the housing by "fingers". It's a snap in fit. Grab the socket firmly and pull it out of the housing. Sometimes you need to pull down a bit as you pull back. Replace the bulb then snap it back in. If one is burnt out the other isn't far behind so replace all.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.