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Service bulletin SBW54-057

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10189332
Published by NHTSA2021-03-25
Manufacturer's numberSBW54-057
Manufacturer's date2020-10-27
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Western Star Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. When troubleshooting powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler-approved tool for troubleshooting vehicle Powernet issues.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories

Vehicles listed
WESTERN STAR 47002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 48002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 49002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 49X2021
WESTERN STAR 57002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
WESTERN STAR 69002010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20260912026-03-03. Electrical
22V3380002022-05-16. EQUIPMENT:OTHER:LABELS
20216972021-11-12. Electrical
21V8820002021-11-12. ELECTRICAL SYSTEM:WIRING
20211722021-03-24. Electrical
21V2060002021-03-24. ELECTRICAL SYSTEM:WIRING
20V6340002020-10-14. EQUIPMENT:OTHER:LABELS; TIRES
20202172020-05-18. Electrical
20V2810002020-05-18. ELECTRICAL SYSTEM:WIRING
20V2110002020-04-10. EQUIPMENT:OTHER:LABELS

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
CXA_10_25_Tech Questions2025-11-05. Other. CX Advocate for technical questions/issues raised
SF6582023-04-07. Service bulletin. Field Service Campaign for Integrated Predictive Powertrain Control ECU. Resubmitting to fix a table formatting issue.
SF6582023-03-04. Service bulletin. Revised Field Service Campaign for Integrated Predictive Powertrain Control ECU. REVISION: The bulletin has been revised to add additional work instruction steps to remedy errors encountered during the flashing process.
SF6582023-02-02. Service bulletin. Revised Field Service Campaign for Integrated Predictive Powertrain Control ECU
ICI23-0012023-02-02. Service bulletin. Important Campaign Information Letter for SF658 Revised Bulletin, Intelligent Powertrain Management ECU
SF6582022-12-03. Service bulletin. Field Service Campaign for Integrated Predictive Powertrain Control ECU. Certain vehicles requesting Intelligent Powertrain Management, were shipped without the Integrated Predictive Powertrain Control (IPPC) module required to enable the feature. The IPPC module will be installed and software updated.
SBW54-0742022-02-05. Service bulletin. Revised Western Star Service Bulletin for Pana-Pacific 540 Radio Controls Not Operating Normally. Minor note: added an update of document previously submitted. The related VMRS codes are added
CALWS83-0012021-09-29. Service bulletin. Customer Advisory Letter for HVAC Actuator Wiring Harness. The wiring harness of the actuator of the fresh air recirculation door, shown in Fig. 1, on Western Star vehicles equipped with Red Dot HVAC systems should be inspected for signs of water intrusion and corrosion.
SBW54-0802021-06-29. Service bulletin. 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.
SS708-WST20212021-06-26. Service bulletin. Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.