2019 Land Rover Range Rover Velar

My husband and I were going to the highway and the rear end of the passenger side portion fell apart. I'm still shocked from the weekend incident. My husband and a good friend of ours are working for Big 3 is Vehicle Safety and never ever saw this kind of an incident. Tow truck driver Richard who towed our car witnessed that they never saw this kind of damage. Range Rover retailer is not very receptive except that it is a tire issue and is not covered under warranty. This is my first time buying this Range Rover and I had a horrible experience. While we investigate further to determine the root cause of this incident, Would like to see the FMEA. I don't want this to happen to anyone and I will not be interested in driving this car. Would you be able to share any previous incidents similar to this? Would you please be able to escalate this to the next level of customer satisfaction? Thank you for your prompt response. Do you hvae an email we can upload the pictures and video?

The contact leased a 2019 LAND ROVER Range Rover Velar. The contact stated that while the vehicle was parked with the parking brake activated, the vehicle rolled backward without warning. The contact had taken the vehicle to the dealer and informed the mechanic of the failure. The mechanic inspected the vehicle and the contact was able to show him video footage of the failure. The vehicle was kept in the possession of the dealer for 10 days and the gear shifter was replaced. Soon after the repair, the contact stated that while his pregnant wife had placed the vehicle into park, the vehicle begun to roll backward without warning while she was exiting the driver’s side door. His wife immediately slammed her foot on the brake to stop the vehicle. The contact took the vehicle back to the dealer for a second time where they inspected the black box and found no fault with the vehicle. The case manager had spoken with the manufacturer who recommended changing all four tires. The vehicle was not yet repaired. The vehicle was not diagnosed and remained in the possession of the dealer. The failure mileage was approximately 23,000. Case number [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).”