2021 Nissan Frontier

My husband and I bought a new truck. My husband pulled the truck into our garage, once in the garage the back tires started to spin out of control, he looked down and saw he had his foot on the brake only, but truck surged forward causing no injuries but have minor truck and property damage. Have a picture of where there is stationary tire marks on our epoxy garage floor showing the black tire marks of the tires spinning out of control just before the truck surged forward. After this incident we found articles about sudden unintended acceleration which we feel is what happened to my husband. The dealership we bought the vehicle from has been derogatory from the start of this incident. We have contacted several attorneys to only be turned down saying we don’t have a case because my husband wasn’t injured (thank God). We waived the manufacturer arbitration and found only one attorney who took us through pre-litigation but then discharged us after getting the denial letter from the manufacturer, telling us to get a second opinion. We're at a crossroads and don't know what to do at this point. Morally, would it be right to trade in what we feel is a dangerously defective new vehicle? For that is the crossroads we stand at, either pursuing a civil lawsuit or trading it in. The truck was inspected once by the manufacturer and once by the dealership where we bought it. We are currently asking the dealership’s garage to further check the electronic throttle-control and brake override system on this truck. Any help you can provide would be greatly appreciated. Thank you.