it may be model year specific. this feature was recently added to my 16 charger, but i do not have an active access subscription on my cherokee to check for you.
2015 Latitude V6 AD-II
Mods: List was getting too long for my sig, check out my garage
for a full list of mods
Waiting for install: MFC switch plate w/OTRATTW custom switches
Official test car for the SmartStopStart module program