2021 Nissan Frontier SEAT BELTS,SEATS,UNKNOWN OR OTHER

have gone to Nissan for excessive rattle noise in passenger footwell would sound louder as i gave it gas they concluded that the heater core bracket was loose and tighten but sound did no go away took it in again heater core bracket not good would need to replace so had to take it in third time for same heater core issue eventually they replaced heater core but still have problems with the air was taken to Nissan over 7 times for climate problems. it was not equal driver side blew hotter than the that passenger side eventually it stop blowing air through front vents only the defrost vent works seat adjusting bracket did not lock in place when coming to a stop the passenger seat would slide forward defective Nissan replaced --few month later passenger seatbelt tensioner went bad check engine error code took it to Nissan was replaced by Nissan Nissan service mechanics driving car with defective seatbelt that no issue until part came in same with bracket i had to take them on a ride they kept saying they cant recreate problem as far as climate its been a heat wave over 98 degrees outside and I'm having to drive in a hot car these problems have been since first day i drove car home I've been to service center over 12 times don't feel safe with vehicle i have spoken to Nissan arbitration dept enter Jessica Willis car currently has no air and they are aware of my situation and the heat wave that im having to deal with