I clean mine every week or two.
I saw this stuff in the owners manual "Mopar Total Clean". It's recommended for cloth and leather seats, carpet, vinyl, etc.. most anything in the interior. And I kid you not, this stuff is amazing. It is absolutely the best interior cleaner I have ever used in my 27 years of owning a vehicle.
I have used it to removed ink, gum, grease, dirt, hairspray, makeup, (it my wife's KK)
and stuff I did not even know what it was off my leather seats. Simply by spraying in on and wiping it off with damp or dry cloth. I use it for my 2007 Ram Truck's cloth seats as well.
Get it at the dealer or online.
Mopar OEM Total Clean Deodorizer & Cleaner - AutoTruckToys.com