NHTSA·Commercial vehicles·September 9, 2026

Daimler Trucks recalls 2020–2023 Freightliner Cascadia and 2022 Western Star 49X trucks over brake valves that may corrode

Front brake valves that were repaired incorrectly under earlier recalls may corrode, making the truck pull to one side when stability control brakes, which could cause a sudden change in direction and a crash.

What to do

Take the vehicle to a dealer to have the brake modulator valves replaced free of charge, even if it was fixed under the earlier recalls. Owners can call DTNA customer service at 1-800-547-0712 and refer to recall number F1039.

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Recall details

Product
Freightliner Cascadia, 49x 2020–2023
Hazard
Brakes that pull to one side may cause a sudden change in vehicle direction, increasing the risk of a crash.
Units
2,404 vehicles
Reported to NHTSA
September 9, 2026
Identifiers
  • NHTSA campaign number: 26V583000
  • Manufacturer campaign number: F1039
  • Model years: 2020–2023

The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.

Official notice

The notice's own wording from NHTSA.

Component
ELECTRONIC STABILITY CONTROL (ESC)
Defect
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Freightliner Cascadia and 2022 Western Star 49X vehicles previously repaired incorrectly under recall numbers 23V073 or 22V817. The brake modulator valves on the front axle may corrode and cause the vehicle to pull to one side during braking initiated by Electronic Stability Control (ESC) or Roll Stability Control (RSC).
Consequence
Brakes that pull to one side may cause a sudden change in vehicle direction, increasing the risk of a crash.
Corrective action
Dealers will replace the brake modulator valves, free of charge. Owner notification letters are expected to be mailed November 8, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1039. Vehicles repaired under the prior recalls will need the new repair completed.

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