smaller marker light loose and noisy @ 70mph

[gcraybas]

One of my smaller marker lights is loose and vibrates like hell when going over 70 mph. What is the best fix I should be looking for the dealership to do. 2006 H2 Base.

[Kevin B]

Is it one one of the three on the top?? Try pushing it back in and re-seating it. BTW do you take it to the car wash?

[gcraybas]

Far right one(passenger side) of the three. I am forced to take to a car wash during our winters in Syracuse, NY. A normal drive around here leaves more salt on my H2 than Morton Salt factory. I try to spray also @ wash ports 2x a week. When I try to push back in, it feels spongy. The dealership said they have their window guys reseal the lights. I am wondering about leakage.