My driver's seat developed a tear after using the heated seat, set on high on a 16 degree day; it was replaced under warrantee.
Did not do the swap of the cover myself, but did stay at a Holiday Inn Express ... lol.
Actually, watched the process of cover replacement by the Chevy Dealer and snapped some photos. It is fairly straightforward but tedious work.
First step is to move the seat forward in the track and remove the two bolts located in the back of the track. (careful to not break the welded on nuts loose - saw that warning in another thread). Then, when the bolts are out, the front of the track can be disengaged from the retainer. Unplug the seat wire harness. Remove headrest and then have a buddy help carefully take the seat out and place on a table. Having it sitting up high will make working on it much easier because access is needed to all parts of the seat frame.
There are plastic channels around the perimeter of the cover that pop out to release the cover. The seat switch control panel/side plastic cover has some fasteners under it (shown hanging off the table on the right side in the picture above). And then there are about 20 hog ring fasteners that go through the rectangular slots in the foam cushion and attach the cover to the wire seat frame (cushion rectangular slots shows up well in the photo). The rings are a pain to release because they are located way under the cover. Those rings are the key to the fit and finish on the Leather seat. The rings keep the seat cover firmly locked in to the frame and stop it from sliding under the high g-forces of the Camaro ;-)
The bottom seat cover attaches in the same fashion as the top.
The big white flat material covering parts of the foam in the picture are the seat heaters - the grids shows through in the photo and look like a race track ... I will never use the seat heater on high setting again. On the 16 degree day this winter the seat did get extremely hot on the high setting; that weakened the leather, next day saw the tear.
If you go with aftermarket covers maybe a good idea to see what method they use for cover attachment before deciding on a particular brand. The OEM covers are form fit and have tension on them which gives mostly a smooth wrinkle free finish.
Did notice that the OEM "Leather" cover is about 50% leather and the rest is upholstry material on the edges and sections not in clear view.
Ron