As mentioned you need Active Drive II for it to be flat towable, Active Drive I is not flat towable. In addition you will need to have a TSB service item done which provides power to the eletric power steering while the vehicle is off, typical installation cost for this modification is around $500.
All Trim levels of the Cherokee are available with Active Drive II 4x4, though it is only found standard on the Trailhawk, and maybe the Overland edition, We have a 2017 Overland edition Cherokee with Active Drive II, but have not yet set it up for TOAD use. If shopping on the used market and using photos the 2 things I found easiest to spot when we were shopping were the pin-hole for the neutral setting on by the gear shift, note there are 2 varieties of the knobs that both have Active Drive II, one also has Active Drive Lock. If there are no photos of the gear shift area, look for the Active Drive II logo on the lower left corner of the tail gate.
p.s. when we were shopping we only found 1 Latitude trim level Cherokee with Active Drive II on the market which was for sale about 150 miles away, so they are out there, but are rare, most of the time you find Active Drive II on the Limited or higher trim levels.
Here is a link to a photo showing the N> button that allows flat towing
https://s.aolcdn.com/hss/storage/ada...e-fd-lead7.jpg