Western Star Trucks Recalled for Potential Rollaway Risk

Daimler Trucks North America, LLC (DTNA) is recalling certain 2023-2024 Western Star 4900 and 6900 heavy-duty trucks due to a defect in the inversion valve that could delay park brake engagement, increasing the risk of unintentional vehicle movement and potential crashes.

Affected Vehicles:

  • Model: 2023-2024 Western Star 4900 and 6900
  • Units: Approximately 149 vehicles
  • Production Dates: June 17, 2022 – September 11, 2023 (4900) and August 18, 2022 – June 14, 2023 (6900)
  • VIN Range: Not sequential

Safety Risk: The defective inversion valve may cause intermittent delays in park brake engagement, exceeding the 3-second maximum specified by Federal Motor Vehicle Safety Standard (FMVSS) 121. This could lead to the vehicle rolling away unintentionally and potentially causing accidents.

Warning Signs: In case of a delayed valve, drivers may notice the absence of the usual park brake exhaust noise.

What DTNA is Doing:

  • Remedy: DTNA is currently developing a repair solution, which will be performed free of charge at authorized service facilities. Details of the repair and reimbursement process will be communicated to owners via mail.
  • Timeline: Owner notification letters are expected to be mailed on March 10, 2024.

What Owners Should Do:

  • Contact DTNA customer service: If you own an affected vehicle, please contact DTNA customer service at 1-800-547-0712 for further information and instructions. Reference recall number FL992.
  • Monitor for NHTSA updates: Stay informed about the recall details and status on the National Highway Traffic Safety Administration (NHTSA) website: https://www.nhtsa.gov/.

Additional Information:

  • This recall affects a limited number of vehicles, approximately 46% of the identified production range.
  • DTNA encourages all owners of affected vehicles to schedule repairs promptly to ensure their safety and compliance with FMVSS 121.


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