Vehicle report

2022 WESTERN STAR 4900

Service bulletins

35 bulletins

Technical 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.

PB-47-900-WST

Service Bulletin/Repair Instructions

Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals

CXA_10_25_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Issues

CXA 3_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 2_25_NOx

Other

CX Advocate for NOx conversion low faults

CXA 1_16_NOx

Other

CX Advocate for NOx conversion low faults

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 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_Conmet Oil Pan

Other

CX Advocate for ConMet Oil Pan Insert Additional Failures

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 06_24_Clutch Bolts

Other

CX Advocate communication for clutch bolts

CXA 06_24_NOx

Other

CX Advocate communication for NOx conversion low faults

TSB35-023-WST

Service Bulletin/Repair Instructions

Technical Service Bulletin for New Final Drive Over Heat Diagnostic

SS734-WST

Other

Service Solution for Thread Spring Pin Suspension Alignment & Installation

VSWP Customer Letter

Other

Customer letter regarding variable speed water pump.

SS763-WST

Other

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

SS3144-FTL

Service Bulletin/Repair Instructions

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

FL974

Service Bulletin/Repair Instructions

Revised Emissions Recall: Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or Confirm' has been added, as shown in Table 2, to be used when a new DEF header is not required. There have been some other minor changes to the work instructions and SRT times.

ICI24-006

Service Bulletin/Repair Instructions

Important Campaign Information letter for FL974 - Revised Bulletin & Population

ICI22-017

Service Bulletin/Repair Instructions

Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.

SBW49-020

Service Bulletin/Repair Instructions

Western Star Service Bulletin for DEF Connector Reinforcement Caps

CALWS91-002

Service Bulletin/Repair Instructions

Customer Avisory Letter for Seat Bolt Inspection

PTP PAINT UPDT

Service Bulletin/Repair Instructions

Portland Truck Plant Paint Update - WST182 The Portland Truck Plant schedule is full through the end of 2021 for Western Star 4700, 4800, 4900, and 6900 models; the plant has also reached the maximum paint process capacity for multi-color and custom paint designs. Due to the capacity constraint, the Western Star CAE team will no longer accept Truck Change Orders requesting changes from a single color paint to a multi-color paint or custom paint design for vehicles building at the Portland Truck Plant through the end of 2021.

SF631

Service Bulletin/Repair Instructions

Field Service Campaign for Detroit Diesel Engine Fan Activation with A/C. On certain Freightliner and Western Star vehicles with Detroit Diesel engines, the engine fan fails to activate when the A/C pressure switch circuit is opened, resulting in poor A/C cooling performance at idle.

SS708-WST2021

Service Bulletin/Repair Instructions

Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.

SBW54-080

Service Bulletin/Repair Instructions

Western Star Service Bulletin for Key Fob ID Retention. Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.

PM Sensor Shrtg

Service Bulletin/Repair Instructions

Supply chain shortage notice. Model Year 2022 Freightliner, Western Star, Freightliner Custom Chassis, and Thomas Built Bus vehicles manufactured with the following engines have been built without a Particulate Matter (PM)/Soot sensor: •DD15 Gen 5 (Gats 2.0) (with a June 2021 or later GHG build date) •DD13 Gen4 (1-box) (with a June 2021 or later GHG build date) •Cummins B6.7 (with a June 2021 or later GHG build date) •Cummins X15 with ratings of 400-500HP (with a June 2021 or later GHG build date) As a result, the vehicle has a non-conforming On-Board Diagnostic (OBD) system. The engine manufacturers will pay to install the OBD PM sensor and corresponding software through a recall once sensors become available.

D21M1

Service Bulletin/Repair Instructions

Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in order to reseal the bypass plugs of the drive shaft cover located in front housing.

WI21-009

Service Bulletin/Repair Instructions

Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.

WI21-008

Service Bulletin/Repair Instructions

Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.

SS1033094

Service Bulletin/Repair Instructions

Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...

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.