Uncommanded Exterior Lighting Behavior

Recall Filing Date: June 26, 2025
Recall ID:  2025-357
Manufacturer Recall ID: 25PACF

     

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

Vehicle stop lamp, upper and lower beam headlamp, reverse lamp, and turn signal illumination may not correspond to operator control inputs. Lift axles equipped on vehicle, if lowered, may revert to raised position, or when signal warning lamps are activated, oscillate up and down. These issues may result in non-compliance with FMVSS/CMVSS 108.

Safety Risk

Delayed and unsteady illumination of vehicle stop lamps and un-commanded change in headlamp illumination may increase the risk of crash. Un-commanded position change of lift axles may increase the risk of injury.

Cause

Vehicle controller software has an incorrectly configured time counter that may cause some specific messages from the vehicle ECU to the chassis module to not be sent at their intended frequency.

Identification of Potentially Defective Vehicles:         
Vehicle Makes and Models: Peterbilt models 520, 536, 537, 548, 567, 579, 589
Vehicle Model Years: 2025 to 2026
Production Dates: 01-23-24 to 05-23-25

Description of Remedy

Affected vehicle owners will be notified and dealers will update software 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: June 26, 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.