2020 Western Star Wj121 problems, complaints & recalls
Safety recalls (2)
Fuel System, Diesel:fuel Injection System:fuel Rail 2021-12-13 · campaign 21V965000 · 2,843 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Western Star 4700, 2019-2022 Freightliner 114SD, 2021-2022 Western Star 49X, Freightliner Cascadia P4, 2022 Western Star 47X, 2021 Western Star WF110, 2020 Western Star WJ121, and 2019-2021 FCCC XCP Chassis vehicles. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Risk: A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Fix: Dealers will replace the fuel tubes, and install vibration isolators, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-915.
Electrical System:12v/24v/48v Battery:cables 2021-06-25 · campaign 21V481000 · 122,056 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2022 Freightliner Cascadia P4, 2021 Western Star WH126, 2020 Western Star WJ121, and 2021-2022 Western Star 49X vehicles. The battery cable terminal may break, resulting in a loss of electrical power and unintended engine stall.
Risk: An engine stall increases the risk of a crash.
Fix: Dealers will repair or replace the battery cables, free of charge. Owner notification letters were mailed on January 7, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-893.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.