I bought a “used (3009 miles)” 13 JK Sport S from the dealer this past December and had no window sticker. Couldn’t get it from the Chrysler site either. So what I did was go to the Jeep.com site, clicked the “Owners” tab and registered my Jeep there. I was then able to see the build specs, options and dealer add-ons.
72 CJ5 - bought 1981, sold, 1986
94 YJ - bought new, traded in 2000
13 JK - bought new 2013, current