Heavy Duty Battery Electric Vehicle High Voltage Interlock Loop Interrupts

Recall Filing Date: March 24, 2025
Recall ID: 2025-150
Manufacturer Recall ID: 25PBC

          

In accordance with the Canada Motor Vehicle Safety Act, PACCAR Inc has determined to recall the vehicles below.

Manufacturer

Peterbilt Motors Company, 1700 Woodbrook Street, Denton, TX 76205

Description of Defect/Non-compliance

High voltage interlock loop (HVIL) disruptions open high voltage contactors on battery electric powertrain.

Safety Risk

Open high voltage contactors create a sudden loss of high voltage. Open electrical contactors cause a loss of propulsion and may increase the risk of a crash.

Cause

Interruptions as short as 10ms may cause a loss of signal and open the electrical contacts with the current design of the circuit. A key cycle does not reset the contactors.

Identification of Potentially Defective Vehicles:         
Vehicle Makes and Models: Peterbilt models 520, 579
Vehicle Model Years: 2023 to 2025
Production Dates: 11-01-21 to 07-15-24

Description of Remedy

Affected vehicle owners will be notified and dealers will update software and replace an electrical harness free of charge. Owners who incurred costs to obtain a remedy for the problem addressed by the recall in advance of receiving notification may seek reimbursement through the process outlined in the general reimbursement plan on file.

Interim Safety Precautions

Not applicable.

Parts Availability

PACCAR Inc. confirms that the parts necessary to correct this defect are available through authorized service centers.

Last updated: March 24, 2025

 

Contact Information

If you have questions regarding recall information on this website or published before January 2025, please contact us:

For vehicle specific inquiries, including:

  • Reporting a safety concern
  • Informing us of a transfer of ownership
  • Updating your address

Please Find a Dealer, who can assist with these updates, schedule inspections, perform any necessary repairs, and provide further guidance based on your circumstances.