The contact owns a 2017 Ford F-150. The contact stated that shortly after refueling the vehicle; while his wife was driving at a slow speed and merging onto the highway, the transmission failed to shift above 4th gear. In addition, the contact stated that the RMP had increased but the vehicle failed to accelerate as intended. No warning light was illuminated. The vehicle was towed to a local dealer where it was determined that there was failure with 2 wiring harnesses that required replacement. The vehicle was not repaired. Upon further investigation, the contact noticed that the rearview camera image occasionally failed to properly display an image. The manufacturer was made aware of the failure. The failure mileage was approximately 72,000.