2026 Western Star 47X technical service bulletins
84 technical service bulletins and manufacturer communications cover the 2026 Western Star 47X, including 2 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Standard Warranty Extension for vehicles with TitanX Radiators
- Warranty Extension for Frame Rail Paint Standard Warranty Policy Extension
- Customer Advisory Letter for Torque Converter Parameter Mismatch
- Fleet Communications for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines (SF735)
- CX Advocate for Cummins Axiomatic fan Control Module Fails Due to Internal Short
- CX Advocate for J1939 Codes with Cummins Engine (TSB-54-102-WST)
- CX Advocate for Surge Tank Level Sensor Float Sinking
- Technical Service Bulletin for Door Sill Plate Bracket Repair
- Technical Service Bulletin for Wiper Supplier Change
- Technical Service Bulletin for J1939 Communication Errors with Cummins Engine Automated or Allison...
- Detroit Transmissions Manual Update for Symptom Diagnostics — DT12 C/D Box Range Shift to Neutral with...
- Important Campaign Information letter for SF735
- Revised Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Fleet Communications for eAxle Breather Hose Relocation to Reduce Water Intrusion Risk
- Fleet Communications for X-Series HD Front Suspension Threaded
- CX Advocate for Twin Steer Equalizer Beam Bushing Wear
- CX Advocate for Transmission Oil Cooler Lines Rubbing
- Revised Warranty Information letter for missing chamber caging bolts
- Truck Equipment Manufacturer Solution for Odometer Pause & PTO Mode Delay with Customer Installed SSPTO &...
- Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO
- CX Advocate for Lost/Damaged Replacement F1011/F1015 Labels
- Revised Technical Service Bulletin for Removing Odometer Pause Wiring Modifications
- Warranty Information letter for missing chamber caging bolts
- CX Advocate for Hood Cracks
- Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
- Truck Equipment Manufacturer Solution for Detroit Assurance Parameters for an Obstructed Multi-Purpose...
- CX Advocate for Transmission Oil Cooler Lines Rubbing APU Coolant Lines
- Warranty Information letter for Reman Parts Usage Policy Reminder
- Truck Equipment Manufacturer Solution for RSS with PTO Engagement
- Important Campaign Information for SF735
- Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
- My Communications for ConMet Quality Alert -- ABP 10045888 -- Seal Service Kit
- Parts Bulletin for Bumper and Rock Guard Part Numbers
- Fleet Communications for Torque Quality
- CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
- Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Field Service Ccampaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Technical Service Bulletin for ESC warning lamp and ECU replacement
- Technical Service Bulletin for DT12 Excessive Wear
- CX Advocate for Aftermarket Transmission Support
- Technical Service Bulletin for Transmission shift stalk
- Fleet Communications for ECP (Electronic Control Pneumatic) Module Water Ingress
- Fleet Communications for Corrosion Protecton/Glyptal Application
- Fleet Communications for Heater Core Plugging
- Fleet Communications for HVAC Eco Mode
- Revised Service Solution for Western Star vehicles with excessive water intrusion into the air system
- Technical Service Bulletin Low Coolant Sensor
- CX Advocate for New AMTcc
- CX Advocate for Driveline and mid-ship bearing vibration
- CX Advocate for ECP (Electronic Control Pneumatic) Modules, possible water ingress
- CX Advocate for Intermittent Connections and ECU Fault Codes
- CX Advocate for Questions/Issues Raised
- CX Advocate for X-Series HD Front Suspension Threaded
- Fleet Communications for New AMTcc
- Revised Emissions Recall for VECI Label Emissions Recall
- Important Campaign Information for F1011 & F1015 Campaigns Revised
- Service Solution for M2 Plus, 108,114SD Plus and New Cascadia Vehicles, SSL and SSR Non-Functional
- Technical Service Bulletin for TufTrac M12 Bolts
- CX advocate for WST X-Series J1939 Communication Errors with Cummins Engines
- CX Advocate for Removing Odometer Pause Wiring Modifications (TSB-54-375-FTL, TSB-54-100-WST)
- CX Advocate for technical questions/issues raised
- CX Advocate for Torque Quality
- CX Advocate for TufTrac Gen2 Suspension Field Issues
- CX Advocate for Wire/Airing Routing and Clipping
- CX Advocate for Experiencing Excessive Purging from Air Dryer
- Technical Service Bulletin for DT12 Range Detent Diagnostic
- CX Advocate for DT12
- My Communications for ACCURIDE INTRODUCES THE 50300 22.5" X 9" STEEL WHEEL
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- Field Service Campaign for Transmission Oil Cooler Line Clearance
- Service Solution for ECP Solenoid Valve Interim Replacement Parts
- Service Solution for DT12 Oil Plug Ports
- Features and Benefits for Detroit Connect Base Service Renewal
- Features and Benefits for Detroit Connect UpfrontService Extension
- Service Solution for ICC5 Erroneous Electric Power Steering Warning Message
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