Safety Information

wv dm 17.01.002

Danger: Electric vehicles are equipped with a high-voltage system. Do not attempt any type of electrical work on the vehicle unless you have completed HV3 Daimler Safety Training. Failure to do so could cause severe personal injury or death.

Danger: Modifying the electric vehicle could affect the vehicle's electrical system, stability, or other important functions. The electric powertrain should not be modified under any circumstances. Modification of any components will void the warranty. Failure to do so could cause severe personal injury or death.


Warning labels are attached to high-voltage vehicle components. Some examples are shown in figure . Do not attempt any type of work on these components unless you have completed HV3 Daimler Safety Training.

Fig. 1, High-Voltage Warning Labels

Important: Connecting to an unapproved controller area network (CAN) bus may trigger CAN fault codes. The vehicle warranty does not cover failures or damage caused to the CAN bus components when the failure or damage is a result of improper connections to the CAN bus.

Fire Extinguisher

Ensure that an approved fire extinguisher is well secured under the driver’s seat within the driver's reach, and easily accessible for first responders. Routinely check the fire extinguisher according to manufacturer’s instructions. If the fire extinguisher has been used, it must be replaced with a new fire extinguisher or refilled before the truck can be returned to service.

During a fire, certain plastic seals can produce gases which with water, form a corrosive acid. Do not touch any fluid on the vehicle. In the event of a vehicle fire, do the following:

  • Call 911 to report the fire.

  • Create a safety perimeter of at least six feet around the vehicle.

  • If possible, follow the high-voltage shutdown procedure. This can only be done by someone that has completed the HV3 Daimler Safety Training.

Welding

Danger: Service and repair of the electric vehicle should only be performed by technicians that have completed HV3 Daimler Safety Training. To prevent personal injury or death, or damage to the electric system, do not attempt repairs yourself.

The vehicle warranty does not cover damage to electrical components caused by any type of welding. Electrical components closer than 12 inches (30 cm) from the welding site must be removed from the vehicle.

If welding must be performed on the electric vehicle, it should be done by a technician that has completed the HV3 Daimler Safety Training, and the high voltage shutdown procedure must be completed.


High-Voltage System

Danger: If a collision occurs, do not touch any high-voltage cables, connectors, or components. Failure to do so could cause severe personal injury or death.

Danger: Service and repair of the electric vehicle should only be performed by technicians that have completed HV3 Daimler Safety Training. To prevent personal injury or death, or damage to the electric system, do not attempt repairs yourself.


The high-voltage system on this vehicle has no parts that an owner or unauthorized service technician can service. Under no circumstances should you open or tamper with the battery or other high-voltage components.


Low-Voltage System

The cab system of the electric vehicle operates on 24V while other areas operate on 12V. When replacing or fitting electrical or electronic components, always verify that they are suitable for the system voltage.

Warning: Always disconnect the battery negative (ground) cable before carrying out repairs or service on the electrical system.

Before attempting any work on the batteries or the electrical system, remove all jewelry. If metal jewelry or other metal contacts with electrical circuits, a short circuit may occur causing electrical system failure and damage or personal injury.

Note:
Document Number: 0000071761
Manual Publication Date: 2024-03-26
Topic Publication Date: 2024-03-26