Jeep won't start

First thing when the starter motor will not CRANK the engine so it will START is try a jump start .. Regardless!

I recently had same issue, battery brand new had driven around parked it and didn't start the next day. Lights came on no problem radio etc wouldn't even turn over. Mine is a 2009 patriot but pretty sure they never fixed the following. In the drivers side wheel well there is a relay box which located in a spot that exposes it to moisture from spray during driving and through front grill. When I located mine there was so much corrosion I had the switch the box with one from a parts jeep I had purchased. Starts now problem now, unfortunately other part now broken...lol, coming to the conclusion jeep patriots are shitty vehicles. Personally I will never buy one again, anyways I hope that the info I provided fixes your problem.