Press the release tab and turn the bulb socket counterclockwise to remove
it from the taillamp housing. The sidemarker lamp does not have a release tab.
Pull
the bulb straight out from the socket.
Press a new bulb into the socket, insert it into the taillamp housing
and turn the socket clockwise into the taillamp housing until it clicks. The sidemarker
lamp does not have a release tab and therefore will not click when it is installed.
Reinstall the rear lamp assembly and tighten the screws.