The defect
Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Western Star 4900 and Western Star 6900 vehicles. A defect in the inversion valve may delay park brake engagement, which could allow the vehicle to move unintentionally. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
The risk
Unintentional vehicle movement can increase the risk of a crash or injury.
The remedy
DTNA will inspect and replace the inversion valves, as necessary free of charge. Owner notification letters were mailed February 27, 2024. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL992.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Western Star 4900 | 2023 |
| Western Star 6900 | 2023 |
Components: PARKING BRAKE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Western Star 4900 | 2023 | 0 | 4 |
| Western Star 6900 | 2023 | 0 | 2 |
Other parking brake recalls in 2024
13 of the 950 recall campaigns reported to NHTSA in 2024 concerned the parking brake; Daimler Trucks North America, LLC filed 166 campaigns in all.
| 24V693000 17 Sept 2024 | Kia America, Inc. |
| 24V518000 8 Jul 2024 | Nova Bus (US) Inc. |
| 24V377000 29 May 2024 | Lion Electric Company |
| 24V363000 23 May 2024 | Kovatch Mobile Equipment Corp. |
| 24V341000 15 May 2024 | Navistar, Inc. |
| 24V336000 14 May 2024 | Daimler Trucks North America, LLC |
| 24V335000 14 May 2024 | Daimler Trucks North America, LLC |
| 24V167000 1 Mar 2024 | Mack Trucks, Inc. |
NHTSA recalls (public domain) · all recalls of 2024