Problems with 2014 Jeep Cherokee STRUCTURE

The jeep cherokee has a plastic skid plate underneath. the first incident happened when i hit a puddle of water, pulling the front edge of the skid plate loose. at that point, anytime my speed reached 45mph it would vibrate, making a very loud noise. i called the dealership and took it in the next morning. the tech said he sees this all the time, the plate is held on with plastic bolts. they repaired in 30 min, no paperwork. the same thing happened again in feb2015. i took the vehicle in to the dealership for an oil change and asked that they re-secure the skid plate. i was advise it was done. it happened again in mar2015, and i returned to the same dealership for this problem, along with several recalls. i was told they would put metal screws in to repair it. the 4th time it happend was june2015, mileage appx 7500. this time was much worse than prior, as when the skid plate came loose, the plastic was flipped under so it was dragging the ground at all times (not just vibrating at increase speed).

5 recalls since i bought it brand new september 2014 . when you step on the gas, car sometimes won't move then jerks into motion & other times it starts off in 3rd gear. soon after purchase, noticed extreme condensation inside windows. back right floor board was soaked with water? & condensation under the right front seat. dealership can't figure it out. most recently ,radio display not working properly. noticed getting shocked when opening the door. rear hatch sometimes won't open the the power lift button is pushed

While pulling onto a state highway, my rear liftgate opened on its own, even though it was shut and latched when i initially took off. there were no warning beeps or lights before or during this event. my 35 pound dog was thrown out onto the highway. *tr