NHTSA learned of a possible fire risk involving damaged Volt batteries when a fire erupted in a Volt that was being stored in a parking lot of a test facility in Burlington, Wis.

This robot provides a new approach to extinguishing the tunnel fire at early stage, which could also widely applied for fire control in tunnel, warehouse, underground parking lot, and other building.

Later, an employee was selected to extinguish a controlled fire in the parking lot. In her nervousness, she forgot to pull the pin.