Recreational Vehicle Lpg Tank Valve/gauge problems of the 2018 Nissan Rogue

Takata recall. I brought a brand new 2018 Nissan Rogue in April of 2018. My engine light came on and the car only has 9000 miles on it. I took in to the dealer and they claim the light is on because a rodent chewed the wires belonging to the harness. At 1st I was given a loner vehicle and told my transmission was having problems. On Friday I took the car to the dealership. They were very unprofessional from the beginning. Now 4 days later they tell me a mouse ate my wires and that's not something they cover for a harness and now they want to reverse the charges for the loaner car making it a rental. Also my gas gauge off and on displays empty and the car is full of gas. My car is driven everyday there is no way a rodent if any type would even ever survive I'm my car. This is utterly ridiculous. Nissan just does not want to repair the vehicle. They told me it's not there problem it's a machine and they break down.