FleetCom 1_X-Series HD Su
Other
Fleet Communications for X-Series HD Front Suspension Threaded
Vehicle report
2024 WESTERN STAR 47X
Service bulletins
186 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
CXA 08_26_Equalizer Beam
Other
CX Advocate for Twin Steer Equalizer Beam Bushing Wear
CXA 08_26_X-Series HD Sus
Other
CX Advocate for X-Series HD Front Suspension Threaded
WI26-009R
Other
Revised Warranty Information letter for missing chamber caging bolts
TS-0013-00
Other
Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO
TSB-54-375-FTL
Service Bulletin/Repair Instructions
Revised Technical Service Bulletin for Removing Odometer Pause Wiring Modifications
WI26-009
Other
Warranty Information letter for missing chamber caging bolts
CXA 06_26_Hood
Other
CX Advocate for Hood Cracks
PB-47-900-WST
Service Bulletin/Repair Instructions
Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
TSB-26-007-WST
Service Bulletin/Repair Instructions
Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
CXA 05_26_Equalizer Beam
Other
CX Advocate for Twin Steer Equalizer Beam Bushing Wear
WI26-008
Other
Warranty Information letter for Reman Parts Usage Policy Reminder
TS-0008-00
Other
Truck Equipment Manufacturer Solution for RSS with PTO Engagement
CXA 03_26_ABS LA Fault
Other
CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
CXA 03_26_Crossmember
Other
CX Advocate for crossmember steel replacement (TSB-31-019-WST)
CXA 03_26_Surge Tank
Other
CX Advocate for discolored coolant surge tanks (24CSA-20)
TSB-54-104-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for ESC warning lamp and ECU replacement
TSB-26-006-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for DT12 Excessive Wear
CXA_01_26_Trans Support
Other
CX Advocate for Aftermarket Transmission Support
TSB-26-009-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Transmission shift stalk
FleetCom_ECU Faults
Other
Fleet Communications for Intermittent Connections and ECU Fault Codes
FleetCom_ECP Module
Other
Fleet Communications for ECP (Electronic Control Pneumatic) Module Water Ingress
FleetCom_Heater Core
Other
Fleet Communications for Heater Core Plugging
FleetCom_TCM Clutch
Other
Fleet Communications for TCM Fault 520970/7 – Clutch Unable to Open Fully
SS 781-WST
Other
Revised Service Solution for Western Star vehicles with excessive water intrusion into the air system
TSB54-101-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin Low Coolant Sensor
TSB31-019-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Replacing the One-Piece Aluminum Crossmember with a Steel Five-Piece Crossmember
CXA 11_25_AMTcc DTC
Other
CX Advocate for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently
CXA 11_25_ECP Modules
Other
CX Advocate for ECP (Electronic Control Pneumatic) Modules, possible water ingress
CXA 11_25_ECU Faults
Other
CX Advocate for Intermittent Connections and ECU Fault Codes
CXA 11_25_Tech Questions
Other
CX Advocate for Questions/Issues Raised
CXA 11_25_X-Series HD Sus
Other
CX Advocate for X-Series HD Front Suspension Threaded
FleetCom_Chassis Lean
Other
Fleet Communications for Trucks arriving at dealers and body builders with chassis leans greater than 3/8 of an inch
FleetCom_Clutch
Other
Fleet Communications for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently
FleetCom_Low Coolant
Other
Fleet Communications for Low Coolant Sensor
TSB-32-020-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for TufTrac M12 Bolts
CXA 10_25_Air Dryer Purge
Other
CX Advocate for Experiencing Excessive Purging from Air Dryer
CXA 10_25_Discolored Cool
Other
CX Advocate for Plastic Opaque Surge Tank Staining
CXA_10_25_Chassis Lean
Other
CX Advocate for Trucks arriving at dealers and body builders with chassis leans greater than 3/8 of an inch
CXA_10_25_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Issues
CXA_10_25_J1939 Comm
Other
CX advocate for WST X-Series J1939 Communication Errors with Cummins Engines
CXA_10_25_Low Coolant
Other
CX Advocate for P4, WST X-Series, DD Engines Low/Critical Low Coolant Warnings
CXA_10_25_Odometer Pause
Other
CX Advocate for Removing Odometer Pause Wiring Modifications (TSB-54-375-FTL, TSB-54-100-WST)
CXA_10_25_Tech Questions
Other
CX Advocate for technical questions/issues raised
ICI23-018R5
Other
Important Campaign Information letter for (Revised) Love’s Travel Stops Authorized Campaign Program
CXA_9_25_Tech Questions
Other
CX Advocate for technical questions/issues raised
WI25-014
Other
Warranty Information letter for Power Steering Tank Venting Diagnostic Procedures Revision
MYCOM_09092025-1
Other
My communications for DTNA Announces Extended Coverage Policy Updates
MYCOM_09022025-1
Other
My Communications for UFI 0-Ring Announcement
TSB-26-001-DDC
Other
Technical Service Bulletin for DT12 Range Detent Diagnostic
CXA_8_25_TCM CAN
Other
CX Advocate for DT12 - TCM CAN communication issues with CPC
CXA_8_25_Tech Questions
Other
CX Advocate for technical questions/issues raised
TSB54-100-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Removing Odometer Pause Wiring Modifications
24CSA-19Rev
Other
Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
TSB83-032-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for HVAC Stops Cooling
CXA 7_25_Mirror DTC
Other
CX Advocate for Nuisance Mirror Adjustment DTC (SS785-WST)
SS785-WST
Other
Service Solution for Nuisance Mirror Adjustment DTC
PB33-005-WST
Service Bulletin/Repair Instructions
Parts Bulletin for Tie Rod Assembly Part Breakdown
SS765-WST
Other
Service Solution for ECP Solenoid Valve Interim Replacement Parts
TSB26-008-WST
Service Bulletin/Repair Instructions
Service Solution for DT12 Oil Plug Ports
FAB342
Other
Features and Benefits for Detroit Connect Base Service Renewal
FAB343
Other
Features and Benefits for Detroit Connect UpfrontService Extension
SS784-WST
Other
Service Solution for ICC5 Erroneous Electric Power Steering Warning Message
CXA 3_25_NOx
Other
CX Advocate for NOx conversion low faults
CXA 3_25_SAS01T to SAS03T
Other
CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
CXA 3_25_Wheel Seals
Other
CX Advocate for wheel seals
SS782-WST
Other
Service Solution for ICC5 B-Panel Gauges Intermittently Not Being Displayed
SS781-WST
Other
Service Solution for Western Star vehicles with excessive water intrusion into the air system
CXA 2_25_DA Fault Code
Other
CX Advocate for M2 Plus, 47X, 49X Fault Code 232/524000/19- ECU CPC data error
CXA 2_25_NOx
Other
CX Advocate for NOx conversion low faults
CXA 2_25_Turbo Oil Drain
Other
CX Advocate for turbo oil drain cracking
CXA 2_25_Wired Regen
Other
CX Advocate for Cummins Engine with Wired Regen Inhibit Switch (SF703)
SS780-WST
Other
Service Solution for Tire Pressure Monitoring System (TPMS) Water Intrusion Through Perimeter Seal
SS762-WST
Other
Revised Service Solution for X-Series Western Star Fault Code 232/524000/19- ECU CPC data error
SS770-WST
Other
Service Solution for 47X/49X Dual Power Steering Gear Orifice Fittings
TSB01-002-DDC
Service Bulletin/Repair Instructions
Technical Service Bulletin for Gen 5 DD13 Turbocharger Oil Return Line Cracks
TSB26-006-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for DT12 Excessive Wear
TSB26-007-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for DT12 OVX Transmission Refresh
TSB54-097-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for SAS01T to SAS03T Replacement Information
D24M5-Bulletin
Service Campaign
Detroit Field Service campaign for 2024 HDEP ACM Software Reprogramming.
D24M5-DLR LTR
Service Campaign
Detroit Field Service campaign for 2024 HDEP ACM Software Reprogramming.
D24M5-OWN LTR
Service Campaign
Detroit Field Service campaign for 2024 HDEP ACM Software Reprogramming.
TSB91-004-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
SF705-Bulletin
Service Campaign
Revised Field Service Campaign for Espar Fuel Standpipe Weld
SF705-DLR LTR
Service Campaign
Revised Field Service Campaign for Espar Fuel Standpipe Weld
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.
CXA 1_16_DD13 Altitude
Other
CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
CXA 1_16_Espar Fuel
Other
CX Advocate for Espar Fuel Standpipe Weld (SF705)
CXA 1_16_NOx
Other
CX Advocate for NOx conversion low faults
CXA 1_16_Park Brake
Other
CX Advocate for unwanted park brake warning (TSB-54-098-WST)
CXA 1_16_Turbo Oil Drain
Other
CX Advocate for turbo oil drain cracking
SS777-WST
Other
Service Solution for 47X PTO Mode Delay for Split Shaft PTO
SS776-WST
Other
Service Solution for X-Series intermittent no-start and CPC not configured message
SS778-WST
Other
Service Solution for Power Steering Reservoir Fill Cap Venting
SF705-OWN LTR
Service Campaign
Field Service Campaign for Espar Fuel Standpipe Weld
SS771-WST
Other
Service Solution for 47X/49X Front Suspension AluminumShackle Bars
ICI24-049
Other
Important Campaign Information letter for SF698 – Third Revised Bulletin
SF698-Bulletin
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters
SF698-DLR LTR
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters
D24R2-Bulletin
Emissions
Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming
D24R2-DLR LTR
Emissions
Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming
D24R2-OWN LTR
Emissions
Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming
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.
CXA 11_21_Discolored Cool
Other
CX Advocate for discolored coolant surge tank
SS768-WST
Other
Service Solution for 47X, 49X, 57X Park brake check valve may be improperly plumbed causing brakes to drag
SS772-WST
Other
Service Solution for X-series Bodybuilder Marker Lights Turn Off While Truck Lights Remain On
SS773-WST
Other
Service Solution for Optimized Idle icon missing on instrument cluster
TSB54-098-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Disabling the ‘Park Brake Set / Door Open’ Warning
WI24-019
Warranty Program/Extension
Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
SF703-Bulletin
Service Campaign
Field Service Campaign for Cummins Engine with Wired Regen Inhibit Switch
SF703-DLR LTR
Service Campaign
Field Service Campaign for Cummins Engine with Wired Regen Inhibit Switch
SF703-OWN LTR
Service Campaign
Field Service Campaign for Cummins Engine with Wired Regen Inhibit Switch
SS769-WST
Other
Service Solution for 49X & 47X with Cummins Engines and eViscous Engine Fan with Communication Issues
CXA 10_17_Reman Process
Other
CX Advocate for overview of the remanufacturing process.
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.
CXA_10_17_CSA letters
Other
CX Advocate for the following CSA: (24CSA-17,24CSA-19,24CSA-20) Gen 5 DD13 Turbocharger Oil Return Line Cracks, Heavy-Duty Engine Product (HDEP) Oil Separator Leaks, Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)
24CSA-19
Other
Customer Service Annoucement for Heavy-Duty Engine Product (HDEP) Oil Separator Leaks
24CSA-20
Service Bulletin/Repair Instructions
Customer Service Annoucement for Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)
SS757-WST
Other
Service Solution for 47X & 49X Shifter Interference with Arm Rest
SS767-WST
Other
Service Solution for 47X Twin Steer Suspension Equalizer Beam Bushing
SS1023366-Detroit
Other
Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
WP24-017
Warranty Program/Extension
Warranty Policy Letter for Steering Wheel Centering Policy Amendment
24CSA-17
Service Bulletin/Repair Instructions
Detroit Customer Service Annoucement for Gen 5 DD13 Turbocharger Oil Return Line Cracks
CXA 9_24_Idler Arm
Other
CX Advocate for Twin Steer Idler Arm (SF689)
SS748-WST
Other
Service Solution for 47X & 49X Dim Trailer Lighting
CXA 8_24_AutoElevate Disa
Other
CX Advocate for AutoElevate Disablement Gen5 Engines
CXA 8_24_AutoElevate and
Other
CX Advocate for benefits of Autoelevate and hydrocarbon faults
CXA 8_24_BCA CLDS TSB
Other
CX Advocate for Technical Service Bulletin for New Battery Cable Access (BCA) Parts for Improved Cold Weather Functionality (TSB54-369-FTL, TSB54-095-WST)
CXA 8_24_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 8_24_Lytx Camera
Other
CX Advocate for Lytx camera mounting & wiring routing issues (SS 3152-FTL, SS 766-WST)
CXA 8_24_WABCO_Onguard
Other
CX Advocate for Wabco Onguard (TSB54-364-FTL, TSB54-094-WST)
TSB54-095-WST
Service Bulletin/Repair Instructions
Revised Technical Service Bulletin for New Battery Cable Access (BCA) Parts for Improved Cold Weather Functionality. Description of Revisions: This bulletin replaces the version dated 07/30/2024. Make has been updated in the described condition.
FICM Cleaning
Other
Cleaning Gen5 Engine Fuel Injectors
FICM Email
Other
Fuel Injector Cleaner Updated Procedure
FICM Priming
Other
Fuel Injection Cleaning Machine Priming Procedures
FICM Setup
Other
Draft Fuel Injection Cleaning Machine (FICM) Setup Instructions
TSB54-094-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for Wabco OnGuard Display Discrepancy
ICI24-030
Other
Important Campaign Information Letter for SF698 – Second Revised Bulletin
SF698REV2-Bulletin
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters. SECOND REVISION: The parameter set was updated to address a potential conflict that affected engine speed control functionality.
SF698REV2-DLR LTR
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters. SECOND REVISION: The parameter set was updated to address a potential conflict that affected engine speed control functionality.
SF689-Bulletin
Service Campaign
Field Service Campaign for Twin Steer Idler Arm
SF689-DLR LTR
Service Campaign
Field Service Campaign for Twin Steer Idler Arm
SS766-WST
Other
Service Solution for Cascadia Lytx SF500 intermittent video feed issues
CXA 7_24_AutoElevate Disa
Other
CX Advocate for AutoElevate Disablement Gen5 Engines
CXA 7_24_Conmet Oil Pan
Other
CX Advocate for ConMet Oil Pan Insert Additional Failures
CXA 7_24_NOx
Other
CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
CXA 7_24_Reman Process
Other
CX Advocate for overview of the remanufacturing process.
CXA 7_24_Reman Process V2
Other
CX Advocate for overview of the remanufacturing process.
CALWS54-007
Service Bulletin/Repair Instructions
Customer Advisory Letter for Battery Cable Depopulation Stud Inspection, with or without Jumpstart Post
CXA 06_24_Clutch Bolts
Other
CX Advocate communication for clutch bolts
CXA 06_24_MCM Fault
Other
CX Advocate communication for MCM fault integrated NOx flow rate low
CXA 06_24_NOx
Other
CX Advocate communication for NOx conversion low faults
CXA 06_24_Oil Lines
Other
CX Advocate communication for oil lines disconnecting
SF698-REV-Bulletin
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters. REVISION: Clarifying statements and a figure were added to the work instructions between steps 8 and 9 regarding “grayed out” XMC parameters.
SF698-REV-DLR LTR
Service Campaign
Revised Field Service Campaign for Western Star Heated Headlight Parameters. REVISION: Clarifying statements and a figure were added to the work instructions between steps 8 and 9 regarding “grayed out” XMC parameters.
ICI24-024
Service Campaign
Revised Important Campaign Information letter for SF698 - Revised Bulletin. REVISION: Clarifying statements and a figure were added to the work instructions between steps 8 and 9 regarding “grayed out” XMC parameters.
TSB30-001-WST
Service Bulletin/Repair Instructions
Revised Technical Service Bulletin for Off-Road/Low Traction Throttle Parameter Update. Description of Revisions: This bulletin replaces the version dated 02/22/2024. The service bulletin number has been added in the title and the warranty statement is modified.
TSB35-023-WST
Service Bulletin/Repair Instructions
Technical Service Bulletin for New Final Drive Over Heat Diagnostic
SF672 POSTCARD LARGE
Service Campaign
Field Service Campaign Owner Reminder Postcard large population
SF672 POSTCARD SMALL
Service Campaign
Field Service Campaign Owner Reminder Postcard small population
SF698-OWN LTR
Service Campaign
Field Service Campaign for Western Star Heated Headlight Parameters
VSWP Customer Letter
Other
Customer letter regarding variable speed water pump.
SF665 POSTCARD LARGE
Service Campaign
Field Service Campaign Owner Reminder Postcard large population
SF665 POSTCARD SMALL
Service Campaign
Field Service Campaign Owner Reminder Postcard small population
SS763-WST
Other
Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
CALWS26-001
Service Bulletin/Repair Instructions
Customer Advisory Letter for Transmission Cooler
ICI24-015
Service Bulletin/Repair Instructions
Important Campaign Information letter for SF676 - Revised Bulletin & Population
SF676REV2
Service Bulletin/Repair Instructions
Revised Field Service Campaign for Braking System Parameter Update
SS3144-FTL
Service Bulletin/Repair Instructions
Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller
SF688
Service Bulletin/Repair Instructions
Field Service Campaign for Cummins Cruise Control Inhibit
ICI24-012
Service Bulletin/Repair Instructions
Important Campaign Information letter for SF676 - Bulletin Revision
SF676REV
Service Bulletin/Repair Instructions
Revised Field Service Campaign for Braking System Parameter Update. REVISION: MBT Specific Parameter part number and description in step 19.4 has been removed and Figure 17 has been updated.
CALFTLWS20-005
Service Bulletin/Repair Instructions
Customer Advisory Letter for ESOC Corporation is not Able to Fulfill Orders
CALWS41-003
Service Bulletin/Repair Instructions
Customer Advisory Letter for 47X Driveline Fastener Torque Inspection
SS760-WST
Service Bulletin/Repair Instructions
Service Solution for 47X & 49X Detroit Engines with TEM Interlock Speed Control
ICI23-050
Service Bulletin/Repair Instructions
Important Campaign Information Letter for SF665 - Campaign Reactivated
SF665
Service Bulletin/Repair Instructions
Field Service Campaign for Common Telematics Platform
ICI23-046
Service Bulletin/Repair Instructions
Important Campaign Information Letter for SF675 - Revised Work Instructions. This letter is to inform you that Table 3, Step 22 (page 61) has been updated, along with the Notes throughout the sub-steps of Step 22.
SF675_V2
Service Bulletin/Repair Instructions
Revised Field Service Campaign for Western Star Snow Plow Light Harness
ICI23-044
Service Bulletin/Repair Instructions
Important Campaign Information Letter for SF665 - Campaign Suspended
SF674
Service Bulletin/Repair Instructions
Field Service Campaign for Front Wall Huck Bolt Fasteners
SF675
Service Bulletin/Repair Instructions
Field Service Campaign for Western Star Snow Plow Light Harness
SBW60-028
Service Bulletin/Repair Instructions
Service Bulletin for Relocating the Bluetooth Microphone
SS754-WST2023
Service Bulletin/Repair Instructions
Service Solution for 49X and 47X Web Mounted 5th Wheel Ramps
SF676
Service Bulletin/Repair Instructions
Field Service Campaign for Braking System Parameter Update
SS753-WST2023
Service Bulletin/Repair Instructions
Service Solution for PTO Engagement
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.