Safety was top of mind when Honda decided to put the FCX Clarity Fuel Cell Electric Vehicle (FCEV) on the road. Much was learned by the successful introduction of the Civic GX Natural Gas Vehicle, which has many similar fuel-system attributes. Safety research and years of real-world, on-the-road Civic GX experience has served as an excellent proving ground for Honda’s expertise with the new fuel cell systems.
Hydrogen Safety
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.
 
Refueling Safety
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.