Safety Precautions When Working On Vehicles With High-Voltage System

High voltage is extremely dangerous. 

The high-voltage system is under high voltage. Electrocution can cause death or very serious personal injury.

-- Individuals with electronic/medical life and health sustaining machines in or on their person cannot perform any work on high-voltage systems. Some examples of life and health sustaining machines are pain killer pumps, implanted defibrillators, pacemakers, insulin pumps, and hearing aids.

-- Have the high-voltage system de-energized by a qualified person.

There is a risk of injury from the engine starting unexpectedly.

On electric and hybrid vehicles an active ready mode is difficult to identify. Parts of the body can be pinched or pulled.

-- Switch off the ignition.

-- Place the ignition key outside of the vehicle interior.

Risk of injury due to an activated parking heater and A/C 

The parking heater and A/C can switch on unintentionally on electric and hybrid vehicles with an activated parking heater and A/C. Parts of the body can be pinched or pulled by self-actuating radiator fans.

-- Deactivate the parking heater and A/C.