When disabling a hybrid vehicle's electrical system in an emergency, which action is not recommended for responders?

• A. Turn engine off and remove key
• B. Pull main fuse
• C. If unsure of main fuse - pull all fuses in the box
• D. Find manual service disconnects specific to each model

Answer: (D)

Disabling a hybrid or electric vehicle safely hinges on isolating the high‑voltage system with steps that are reliable across many makes and models. Finding a manual service disconnect that is specific to each model isn’t recommended because its location and operation vary widely, it can be hidden behind panels, require tools, and take valuable time in an emergency. That unknowns introduces risk of not fully de-energizing and potentially exposing responders to high voltage. The safer, more universal first steps are to shut off the ignition and remove the key to stop the vehicle’s electronics, and to use any clearly identified high‑voltage isolation only if you are trained and have access to the vehicle’s manual guidance. If you can’t quickly locate or confidently operate the model‑specific disconnect, treat the system as energized and rely on established rescue protocols and the arrival of trained personnel.