Read door windows shake

[Costa]

I have a 4 door Grand Am
When the windows on both the back doors are about half way down, I can mvoe them from left and and right.
But the windows seem pretty solid rolling up and down.


Should I be able to move the windows left and right, or is something wrong, some clip inside the door perhaps?

[Mike Jung]

I had a similar problem. When driving with the back windows rolled partly down, one of them would shake back & forth (it would drive me nuts when vented level with the ventvisors). I took it into the dealership to have fixed/adjusted while under warrenty.

So take it in to get them fixed/adjusted under-warrenty, if it bothers you when driving.