2018 Western Star 6900 problems, complaints & recalls
Safety recalls (4)
Electrical System:wiring 2021-11-12 · campaign 21V882000 · 6,100 vehicles
Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances, the power stud may contact the bulkhead and result in an electrical arc.
Risk: An electrical arc can increase the risk of a fire.
Fix: Dealers will replace the pass-through power studs, free of charge. Owner notification letters were mailed January 7, 2022. This recall supersedes previous recall number 18V-191. Vehicles previously inspected and considered complete under 18V-191 will need to return for the new remedy. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-907.
Electrical System:wiring 2018-03-26 · campaign 18V191000 · 7,128 vehicles
Defect: Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Western Star 4700, 4900, 5700, and 6900 trucks. The affected trucks have a power stud that passes through the bulkhead. In certain circumstances the power stud may contact the bulkhead and result in an electrical arc.
Risk: An electrical arc can increase the risk of a fire.
Fix: DTNA will notify owners, and dealers will inspect the power stud for the proper clearance to the bulkhead, and replace it if necessary, free of charge. DTNA issued an interim notification to owners on May 23, 2018. The recall began October 29, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-766.
Exterior Lighting:brake Lights:switch 2017-11-27 · campaign 17V761000 · 438,255 vehicles
Defect: Daimler Trucks North America, LLC (DTNA) is recalling certain 2008-2018 Freightliner Cascadia, Western Star 4700, 4900, 5700, and 6900 trucks. After hard brake applications, the brake light pressure switch may not activate the brake lights with a light application of the brake pedal.
Risk: If the brake lights fail to illuminate, there would not be a signal to other motorists that the vehicle is slowing, increasing the risk of a crash.
Fix: DTNA will notify owners, and dealers will repair the vehicles, free of charge. Daimler issued interim notifications to owners on January 22, 2018. The recall began on May 9, 2018. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-756.
Fuel System, Diesel 2017-07-19 · campaign 17V450000 · 74 vehicles
Defect: Daimler Trucks North America (DTNA) is recalling certain 2017-2018 Freightliner 122SD trucks, Western Star 4900 and 6900 trucks, and Freightliner Custom Chassis XCM and XCP chassis equipped with Cummins ISX15 engines. The affected engines have a fuel pump whose drive gear may slip on its drive shaft, resulting in a loss of fuel pump function.
Risk: Failure of the fuel pump will result in a sudden engine stall with no warning, and with no ability to restart, increasing the risk of a crash.
Fix: Cummins will send notices to the owners of the affected vehicles and Cummins dealers will replace the fuel pumps, free of charge. The recall began on September 11, 2017. Owners may contact Cummins customer service at 1-800-286-6467 or DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL744.
Service bulletins (387)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-05-07 · TSB-00-018-WST · Service Bulletin/Repair Instructions
technical service bulletin for starnet manuals moving to technical literature
Engine 2025-01-16 · CXA 1_16_CARB Truck Chec · Other
cx advocate for carb tightening the readiness criteria applied to on-board diagnostic (obd) test submissions for the clean truck check.
Engine 2024-11-21 · CXA 11_21_CARB Truck Chec · Other
cx advocate for carb tightening the readiness criteria applied to on-board diagnostic (obd) test submissions for the clean truck check.
Engine 2024-11-11 · WI24-019 · Warranty Program/Extension
warranty information letter for detroit line or line seal, high pressure fuel injector standard repair time updates
Engine 2024-10-17 · CXA_10_17_CARB Truck Chec · Other
cx advocate for carb tightening the readiness criteria applied to on-board diagnostic (obd) test submissions for the clean truck check.
Engine 2024-10-01 · SS1023366-Detroit · Other
service solution for detroit successful regen reference for ghg17 dd engines
Showing the 6 most recent of 387 bulletins. Search all of them free at nhtsa.gov.
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.