[jjhammer]

Two of my doors seem a little loose and the door lock knobs
(the thing (stem) that goes up and down to lock the door) vibrate and make a very irritating noise when driving. They rattle and are driving me crazy. I need to take these panels off and somehow put them on tighter. I see a couple of screws and wonder if there are any hidden ones??
Also is this a common problem with these cars or just mine? Thanks for the help!!

 

[R-Caddy]

There are about 5-7 screws holding the panel on a 97-99 Catera. I have 2 of them and yet to experience the problem you're having. There has been another thread about removing the door panel in the last week or so. Take a look. Good luck