2,404 Freightliner Trucks Need Extra Repairs After Another Recall
2,404 Freightliner Trucks previously repaired under earlier recalls now need a second brake repair after DTNA found the software fix was not enough.
Vincent ShakirSeptember 14, 20263 Mins read74
Freightliner Trucks Need Second Brake Repair
Daimler Trucks North America (DTNA) is recalling 2,404 Freightliner and Western Star trucks that were already repaired under earlier brake recalls.
The new recall covers certain 2020-2023 Freightliner Cascadia trucks and 2022 Western Star 49X trucks. These vehicles received a software-only repair during earlier recall work. DTNA later found that the software fix did not work as intended on the affected 4×2 chassis setup.
The affected vehicles will now need another repair. This time, dealers will replace the brake modulator valves instead of using software alone.
The new action is NHTSA recall 26V583. DTNA lists the recall as F1039.
Earlier Recall Fix Was Not Enough
The main issue is not simply a new brake defect. These trucks had already been through earlier recall work.
DTNA said the affected vehicles received a software-only remedy under recall FL958, linked to NHTSA recall 22V817, and recall FL966, linked to NHTSA recall 23V073. The software was meant to warn the driver if corrosion developed in the brake modulator valve.
DTNA later found that the software remedy was not right for these 4×2 trucks. A hardware repair should have been used instead.
During an internal review in late August 2026, DTNA engineers found that some 4×2 trucks had received the software-only repair. Further review showed that the software would not fully address the defect on those vehicles.
The company decided on September 8 to launch the new recall. For drivers and fleets, that means a truck that already completed an earlier recall may still need more work.
Freightliner Trucks Can Pull During Certain Braking
The defect involves a brake modulator valve on the front axle.
DTNA said chemical corrosion may affect how the valve works. During certain electronic braking events, full brake pressure could be sent to one front wheel. That can create uneven braking across the front axle.
If that happens, the truck may pull hard to one side. NHTSA said the sudden change in direction could raise the risk of a crash.
The problem can happen during braking started by Electronic Stability Control or Roll Stability Control. DTNA said normal service brakes are not affected.
That means the issue is tied to certain automatic braking events rather than normal braking by the driver.
ABS Light May Give Drivers an Early Warning
Drivers may get some warning before the valve becomes fully affected.
DTNA said an ABS warning light may come on before corrosion fully contaminates the brake modulator valve.
An ABS light can appear for many reasons. It does not prove that this recall defect is present. Still, the warning may be useful for drivers operating Freightliner trucks covered by the recall.
Fleet maintenance teams may also want to review trucks that have had ABS warnings or earlier brake recall repairs.
Most Affected Freightliner Trucks Are Cascadias
The recall covers 2,404 trucks in total. DTNA estimates that all trucks in this recall group have the affected condition.
The filing lists 2,402 potentially affected 2020-2023 Freightliner Cascadia trucks. It also lists two 2022 Western Star 49X trucks.
Some Cascadias with compressed natural gas engines are also listed in the filing.
The key issue is not model year alone. The affected Freightliner trucks are tied to the 4×2 axle setup and the earlier software-only repair.
For fleets with many Cascadias, vehicle history and recall records will be important. A truck that appears to have completed an earlier repair may still be part of this new campaign.
No Crashes or Injuries Reported
DTNA said it had not received reports of unexpected brake pull in this recall group when the report was filed.
The company also reported no crashes, injuries, or deaths tied to the issue.
That is important context for drivers and fleets. The possible defect can create a serious control problem, but no related crashes had been reported in this group at the time of filing.
Freightliner Trucks Will Get New Brake Valves
The new repair calls for brake modulator valve replacement.
DTNA authorized service shops will complete the work at no charge. The company said the hardware repair is needed because the earlier software-only fix may not detect corrosion on these trucks.
Freightliner trucks repaired under the earlier recalls will still need the new work if they are part of this recall group. NHTSA also states that those vehicles need the new repair completed.
For owner-operators and fleets, the repair itself will be free. However, another shop visit could still mean downtime and lost use of the truck.
Owner Letters Planned for November
DTNA plans to mail owner letters on November 8, 2026.
Owners may contact DTNA customer service at 1-800-547-0712. The company recall number is F1039.
The most important point for drivers and fleets is simple. Some Freightliner trucks that already received recall work may still need another repair.
For these 2,404 trucks, the earlier software fix must now be followed by a brake modulator valve replacement.
