GXP Window Noise
I had to take the door panel off and remove the noise insulation.


It is very important to lubricate both the left and right side of the track (front and back too).

I used my gloved fingers to apply white lithium grease. It is quiet once again. I hope this helps anyone else who has to deal with that obnoxious sound.
Grand Prix Window inside - YouTube
I had to take the door panel off and remove the noise insulation.


It is very important to lubricate both the left and right side of the track (front and back too).

I used my gloved fingers to apply white lithium grease. It is quiet once again. I hope this helps anyone else who has to deal with that obnoxious sound.

