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2026 Western Star 47X TSBs

77 Technical Service Bulletins across 13 categories

Pre-Delivery & Maintenance

15 bulletins
11037995

Important Campaign Information letter for SF735 - Campaign Reactivated

11036662

Revised Warranty Information letter for missing chamber caging bolts

11034535

Warranty Information letter for missing chamber caging bolts

11033097

Warranty Information letter for Reman Parts Usage Policy Reminder

11031992

Revised Technical Service Bulletin for DT12 Range Detent Diagnostic

11031975

Important Campaign Information for SF735 - Campaign Suspended

11030623

Technical Service Bulletin for DT12 Range Detent Diagnostic

11030281

Technical Service Bulletin for TufTrac M12 Bolts

11029510

Standard Warranty Extension for vehicles with TitanX Radiators

11028075

Technical Service Bulletin for DT12 Excessive Wear

11025867

Important Campaign Information for F1011 & F1015 Campaigns Revised

11024973

Service Solution for M2 Plus, 108,114SD Plus and New Cascadia Vehicles, SSL and SSR Non-Functional

11017553

Service Solution for DT12 Oil Plug Ports

11017549

Features and Benefits for Detroit Connect UpfrontService Extension

11017548

Features and Benefits for Detroit Connect Base Service Renewal

Other

12 bulletins
11035715

CX Advocate for Lost/Damaged Replacement F1011/F1015 Labels

11035546

Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO

11033090

Truck Equipment Manufacturer Solution for Detroit Assurance Parameters for an Obstructed Multi-Purpose Camera View

11033089

Truck Equipment Manufacturer Solution for RSS with PTO Engagement

11031965

Fleet Communications for Torque Quality

11025882

CX Advocate for Questions/Issues Raised

11025877

CX Advocate for Driveline and mid-ship bearing vibration

11025094

CX Advocate for Experiencing Excessive Purging from Air Dryer

11024970

CX Advocate for Wire/Airing Routing and Clipping

11024967

CX Advocate for Torque Quality

11024966

CX Advocate for technical questions/issues raised

11022341

CX Advocate for technical questions/issues raised

Engine

10 bulletins
11038008

Technical Service Bulletin for J1939 Communication Errors with Cummins Engine Automated or Allison Transmission and...

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Bendix Side Radar

11037998

Revised Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11037997

Revised Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11030499

Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11030494

Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11029532

Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11029530

Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11029527

Field Service Ccampaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines

11024961

CX advocate for WST X-Series J1939 Communication Errors with Cummins Engines

11017552

Service Solution for ECP Solenoid Valve Interim Replacement Parts

Transmission

10 bulletins
11037996

Detroit Transmissions Manual Update for Symptom Diagnostics DT12 C/D Box Range Shift to Neutral with Reversing Events...

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(Aborts)

11036670

CX Advocate for Transmission Oil Cooler Lines Rubbing

11033099

CX Advocate for Transmission Oil Cooler Lines Rubbing APU Coolant Lines

11030278

Technical Service Bulletin for Transmission shift stalk

11028069

CX Advocate for Aftermarket Transmission Support

11026457

Fleet Communications for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently

11025875

CX Advocate for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently

11019811

Field Service Campaign for Transmission Oil Cooler Line Clearance

11019810

Field Service Campaign for Transmission Oil Cooler Line Clearance

11019809

Field Service Campaign for Transmission Oil Cooler Line Clearance

Electrical

8 bulletins
11035530

Revised Technical Service Bulletin for Removing Odometer Pause Wiring Modifications

11029529

Technical Service Bulletin for ESC warning lamp and ECU replacement

11027490

Fleet Communications for ECP (Electronic Control Pneumatic) Module Water Ingress

11027198

Technical Service Bulletin Low Coolant Sensor

11025880

CX Advocate for Intermittent Connections and ECU Fault Codes

11025879

CX Advocate for ECP (Electronic Control Pneumatic) Modules, possible water ingress

11024964

CX Advocate for Removing Odometer Pause Wiring Modifications (TSB-54-375-FTL, TSB-54-100-WST)

11022340

CX Advocate for DT12 - TCM CAN communication issues with CPC

Body & Paint

7 bulletins
11036677

Fleet Communications for eAxle Breather Hose Relocation to Reduce Water Intrusion Risk

11034515

CX Advocate for Hood Cracks

11031956

Parts Bulletin for Bumper and Rock Guard Part Numbers

11031955

My Communications for ConMet Quality Alert -- ABP 10045888 -- Seal Service Kit

11027492

Fleet Communications for Corrosion Protecton/Glyptal Application

11027209

Revised Service Solution for Western Star vehicles with excessive water intrusion into the air system

11020896

Warranty Extension for Frame Rail Paint Standard Warranty Policy Extension

Suspension

5 bulletins
11036678

Fleet Communications for X-Series HD Front Suspension Threaded

11036666

CX Advocate for Twin Steer Equalizer Beam Bushing Wear

11033098

CX Advocate for Twin Steer Equalizer Beam Bushing Wear

11025883

CX Advocate for X-Series HD Front Suspension Threaded

11024968

CX Advocate for TufTrac Gen2 Suspension Field Issues

Fuel System

3 bulletins
11034507

Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals

11025869

Revised Emissions Recall for VECI Label Emissions Recall

11025866

Revised Emissions Recall for VECI Label Emissions Recall

HVAC & Climate

2 bulletins
11027494

Fleet Communications for HVAC Eco Mode - SoP Disabled Jan 2026

11027493

Fleet Communications for Heater Core Plugging

Steering

2 bulletins
11020274

Parts Bulletin for Tie Rod Assembly Part Breakdown

11017539

Service Solution for ICC5 Erroneous Electric Power Steering Warning Message

Lighting

1 bulletin
11036681

Truck Equipment Manufacturer Solution for Odometer Pause & PTO Mode Delay with Customer Installed SSPTO & Controls

Brakes

1 bulletin
11030500

CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)

Tires & Wheels

1 bulletin
11021488

My Communications for ACCURIDE INTRODUCES THE 50300 22.5" X 9" STEEL WHEEL