Water in directional lense...

After having the car washed we noticed the lense is half full of water, is this a common problem, plug that is missing?

Thanks for any help.

Is one of your rear turn signal lenses leaking?

If so, remove lense and verify that gasket is properly seating against both plastic lense and the metal van body. Gasket will seat better if warm. Be careful not to over-torque screws used to secure lense to body so that you don't crack the plastic lense.

Be sure to dry out the inside of this lense assembly thoroughly before remounting.