Sensors are located throughout the vehicle to provide a warning in the unlikely event of a hydrogen leak. Should such a leak occur, the ventilation system is activated and an automatic system closes the main cut-off valves on the hydrogen tank or supply lines as necessary. The high-voltage lines are electrically isolated. In the event of a collision, the system controller automatically shuts off the flow of hydrogen and electric current. Repeated flood and fire testing have confirmed a very high level of safety and reliability.
Honda has taken safety precautions with regard to refueling safety. To prevent reverse flow from the tank, the hydrogen filler inlet has an integrated check valve. The fuel intake mechanism is also designed to prevent contamination by other gases or the connection of nozzles designed for hydrogen stored at incompatible pressure levels.
The FCX Clarity FCEV is not an experimental or prototype vehicle. It is a certified, assembly line-produced car that can be driven with both pride and confidence. Learn more about how the FCX Clarity FCEV helps keep you safe in a crash.