Mitsubishi Fuso filed two software recalls in Japan covering 31,711 trucks

Mitsubishi Fuso Truck and Bus filed two recalls with Japan’s transport ministry on October 8, both for defective control software, covering 31,711 vehicles between them.

The larger of the two, recall number 5886, concerns the rear-view camera on 29,418 Super Great, Fighter and Canter trucks built between March 2024 and January 2026. The filing states that the camera’s software is inappropriate, so internal data is corrupted when the camera starts up and the video signal cannot be output normally, leaving no image on the monitor when reversing and failing the Japanese safety standard. There had been 318 field cases and no accidents. The remedy is not a software update: dealers are to check each camera’s serial number and replace defective units, adjusting the mounting angle where needed.

The second, recall number 5884, covers 2,293 Super Great tractors built between January 2020 and May 2022. The defective part is the Advanced Signal and Actuation Module, which the filing describes as the module that integrates and centrally manages electrical-equipment control. Its control program is inappropriate, so while the vehicle is being driven, once every ten minutes and with no driver input, the trailer’s hazard lamps and reversing lamps flash momentarily and the reversing buzzer sounds. There had been 32 field cases and no accidents, found from market information.

The remedy for that one has two parts: rewrite the module’s control program to the countermeasure specification on all vehicles, and, where the wiring harness added under recall number 4918 is fitted in the circuit, cut that harness. Both recalls begin on October 9. A third Fuso filing the same day, covering 2,705 vehicles, concerns a trailer lighting-circuit design fault and is not a software defect.