- Component
- FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
- Problem
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2017-2023 Freightliner Cascadia, 2020-2022 Freightliner Business Class M2, and 2022 Freightliner 114SD, and 2020-2023 Western Star 49X, 2021-2023 Western Star 47X, and 2021-2022 Western Star 57X vehicles. The brake modulator valves on the front axle may corrode and cause the vehicle to pull to the affected side during an Adaptive Cruise Control (ACC) braking event.
- Risk
- Brakes that pull to one side during an ACC braking event may cause a sudden change in vehicle direction, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the front brake modulator valves, as necessary. Some vehicles will have a software update which will alert driver when a replacement is required. All repairs will be performed free of charge. Owner notification letters were mailed beginning October 16, 2023. DTNA's number for this recall is FL-958. This recall expands and replaces previous recall 20V-390. All vehicles previously repaired under recall 20V-390 will need to have the new remedy performed.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
What this recall means for you
Corrosion can develop in the front-axle brake modulator valves on certain heavy trucks. When Adaptive Cruise Control applies the brakes, the vehicle may pull toward the affected side, causing a sudden change in direction that raises the risk of a crash.
Dealers will inspect the front brake modulator valves and replace them as needed. Some vehicles will instead receive a software update that alerts the driver when a replacement is required. All repairs are free of charge. This recall expands and replaces earlier recall 20V-390, so vehicles already repaired under that recall still need the new remedy. Owners should check their VIN for open recalls and contact an authorized dealer to schedule the repair.
Official recall notice
Affected vehicles
| Freightliner 114SD | 2022 |
|---|---|
| Freightliner Business Class M2 | 202020212022 |
| Freightliner Cascadia | 2017201820192020202120222023 |
| Western Star 47X | 202120222023 |
| Western Star 49X | 2020202120222023 |
| Western Star 57X | 20212022 |