both windows squeak going up or down on 2015 camaro convertible ss2 even after spraying lots of silicone lubricant on tracks. have tried several times.
If it’s not the track gaskets, maybe the noise is from the window regulator. You have to remove the door panel to get access. There is a plastic sheet to repel water too. Before removing the plastic, listen at the door cavity and run the window. You might hear the squeak inside the door. If there is one, remove the plastic sheet and lube the regulator mechanism.
Remove the plastic sheet carefully and when you are done, put it back. It has reason for being there.