'15 JEEP GRAND CHEROKEE AND TRAILER COMPATIBLE?

Yeah, you'll be able to pull that. I agree with the others, you may be happier with a v8, but there's no reason why the pentastar and 8 speed won't be able to handle that. It is a very impressive motor/tranny combination.

However, please keep in mind it likely won't come with a trailer brake controller. You MUST have that installed to pull your camper safely. The dealer can install a very nice controller designed for the Grand Cherokee that will be covered under warranty.