Which of the following is a new vehicle hazard responders should recognize?

The recognition of key fobs as a new vehicle hazard is essential for responders due to the increasing prevalence of electronic systems in modern vehicles. Key fobs often incorporate features such as remote start, which can inadvertently activate the vehicle if the responder is not aware of its presence. Additionally, key fobs can be linked to other electronic systems in the car, such as alarms and immobilizers, which can create confusion during an extrication scenario.

Understanding how key fobs operate can help responders better anticipate and mitigate potential hazards, ensuring a safer extraction process. This includes being aware that the fob may allow the vehicle to start even if the keys are not in the ignition, thereby necessitating caution when approaching the vehicle.

In contrast, the other options, such as manual windows, traditional fuel tanks, and standard batteries, represent older technologies that are well-understood by responders, posing familiar hazards rather than new risks.