I have taken my car in 3-times to the Cadillac dealership regarding a constant door rattle problem that was initially on the driver's side door but now is occuring on the passenger side door as well.

They have not been able to solve the issue in 3 attempts.

This is becoming very annoying and should not be happening for such an expensive vehicle.

I've read in Corvette C6 forums that many of them have the same issues and that surpringly for many, it was the door's strike plate that was loose and vibrating.

Their fix was to either spot weld it together or replace it with a new strike plate.

Does anyone know what the problem is and what the fix is?

Thanks in advance!