Isuzu ERGA FCV: the next-generation hydrogen bus (developed with Toyota) to debut at Japan Mobility Show

Isuzu Motors will debut its next-generation fuel cell bus, the ERGA FCV, at the Japan Mobility Show 2025 in Tokyo (starting 30 October). The vehicle, developed jointly with Toyota Motor Corporation, will be exhibited as part of the Tokyo Future Tour 2035 program — one of the show’s main highlights.

The anticipation, shared by Isuzu in a press note, follows the recent announcement of the begin of cooperation between Isuzu and Toyota to jointly develop a fuel cell bus model at J-Bus plant in Japan, with production expected from 2026.

The ERGA FCV builds on the foundation of the ERGA EV, Isuzu’s battery-electric low-floor city bus introduced in 2024. In this new model, Toyota’s fuel cell system and hydrogen storage tanks are integrated into the roof structure, allowing Isuzu to retain a fully flat-floor interior.

Electricity is generated through a chemical reaction between hydrogen and oxygen inside Toyota’s fuel cell stack, powering the traction motor. The ERGA FCV can be refueled with hydrogen in just a few minutes, delivering the same smooth and quiet operation associated with BEVs while emitting only water vapor.

Within the partnership, “Isuzu is responsible for the planning, development, and design of the vehicle body, while Toyota is in charge of the development of the FC system”, Isuzu states.

The launch of the ERGA FCV aligns with Isuzu’s mid-term business plan, ISUZU Transformation – Growth to 2030 (IX), which identifies carbon-neutral solutions as a key strategic pillar. Through partnerships and a multi-pathway approach—embracing battery-electric, hydrogen, and other low-carbon technologies—Isuzu seeks to accelerate the transition toward sustainable mobility.