My ‘21 4S rear window cracked in April at about 700 mi on it. Being replaced under warranty this week. First replacement window arrived broken so had to wait longer.
I didn’t get any paperwork. Just drove it into Porsche Bellevue and the service manager said they’ve seen this before and ordered it on the spot. Haven’t had an update yet.
Same answer for me. Service manager said they’ve seen a few come through already and ordered me new glass from Germany under warranty. Happy it’s still drivable while I wait.
Disappointedly, I found the same yesterday. Full crack top to bottom near the middle. MY21 4S with 700 easy miles on it. Landed stateside late January. I haven’t talked to the dealer yet.