[header] How to glue a taillight lens [title] Clean the taillight lens assembly thoroughly by spraying cleaner on a rag and wiping down the lens. [step] Do not allow any liquid to get inside the housing. [title] Remove the lens from the housing using the appropriate screwdriver. 
[step] If the lens is glued to the housing, do not try to pry it off as that will likely break it. Instead, remove the entire taillight assembly and follow these directions to remove the lens from the housing without damaging it.