The contact owns a 2019 Ford F-350. The contact stated that while the vehicle was parked, it was discovered that the air pressure in all four tires were consistently decreasing; the contact also noticed corrosion around the rims and valve stems on each wheel. The low tire pressure warning light was illuminated. The vehicle was driven to a dealer but not diagnosed; however, the contact was informed that the dealer would replace the current tires with new tires to monitor the failure. The vehicle was repaired; however, the failure reoccurred. The contact was constantly adding air to the tires before driving the vehicle. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 25,000.

- La Follette, TN, USA