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
Kenworth Truck Company, 10630 NE 38th PI., Kirkland, WA 98033
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: Kenworth L770, T280, T380, T480, T680, T880, W990
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.
If you have questions regarding recall information on this website or published before January 2025, please contact us:
- Email: servicebulletins@paccar.com
- Phone: 425-828-5888
For vehicle specific inquiries, including:
- Reporting a safety concern
- Informing us of a transfer of ownership
- Updating your address