NHTSA Complaint #11708647 — 2019 RAM 1500

December 26, 2025, while driving, the vehicle shut down, and it went into park. After researching the cause of the issue, the RF module had water in it. Additional research indicates the third brake light leaks into the cabin causing water to enter the module causing corrosion and a short. Vehicle was towed to the dealer for repair. Dealer indicated the RF module did fail. They also stated it may be caused by a leaking rear window. The service writer stated they would cover the brake light issue but not the rear window if it caused the problem. Water into the cabin by either area is obviously an electrical problem but also a fire hazard. Any water into a wire harness or component has the potential to short and cause a fire. Before the shutdown, the right front and left rear tire pressure sensors were coming on and off at times. The remote start became non-functional at times.