EMS 1.8.2.2

Securing & Disabling an EV

Disabling EV systems is critical to ensure safe recovery operations.Disconnect the 12-Volt Battery:

  • De-power the battery management system to prevent high-voltage current flow
  • Move proximity keys at least 16 feet away to prevent reactivation.
  • Account for Residual Energy:
  • Allow time for high-voltage and supplemental restraint system capacitors to dissipate energy after shutdown.
  • Refer to OEM Emergency Response Guides (ERGs) for capacitor drainage times.

High-Voltage Service Disconnect:

  • Use only trained personnel with proper PPE to remove the service plug and fully disable the high-voltage system.