Ford F-350 Super Duty electrical malfunctions including window inoperability and dashboard error messages possibly caused by water in rear tail light lens on Ford F-350 Super Duty

Some Ford F-350 Super Duty owners report experiencing electrical malfunctions, such as window inoperability and dashboard error messages like "Blind Spot System Fault" and "Cross Traffic System Fault," which may be linked to water ingress in the rear tail light lens. This issue is often noted after incidents like a tree branch cracking the tail light lens, allowing water to accumulate and cause electrical problems. Owners are advised to check for water accumulation in the tail light assembly and ensure it is properly sealed to prevent further damage. In some instances, the electrical issues may affect other components, such as the rear-view camera and radio, potentially requiring diagnosis and replacement of parts like the accessory interface module (AIM). Regular maintenance and inspection of the vehicle's electrical components are recommended to help prevent these issues and maintain optimal performance.