# 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.

- Type: Service bulletin
- NHTSA id: 10189332
- Published by NHTSA: 2021\-03\-25
- Manufacturer's number: SBW54\-057
- Manufacturer's date: 2020\-10\-27
- NHTSA component: EQUIPMENT; 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10189332-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10189332-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2010 to 2021 WESTERN STAR 4700
- 2010 to 2021 WESTERN STAR 4800
- 2010 to 2021 WESTERN STAR 4900
- 2021 WESTERN STAR 49X
- 2010 to 2022 WESTERN STAR 5700
- 2010 to 2021 WESTERN STAR 6900

## Recalls for the same vehicles and component

- [2026091](/recalls/tc/2026091.md), 2026-03-03: Electrical
- [22V338000](/recalls/nhtsa/22V338000.md), 2022-05-16: EQUIPMENT:OTHER:LABELS
- [2021697](/recalls/tc/2021697.md), 2021-11-12: Electrical
- [21V882000](/recalls/nhtsa/21V882000.md), 2021-11-12: ELECTRICAL SYSTEM:WIRING
- [2021172](/recalls/tc/2021172.md), 2021-03-24: Electrical
- [21V206000](/recalls/nhtsa/21V206000.md), 2021-03-24: ELECTRICAL SYSTEM:WIRING
- [20V634000](/recalls/nhtsa/20V634000.md), 2020-10-14: EQUIPMENT:OTHER:LABELS; TIRES
- [2020217](/recalls/tc/2020217.md), 2020-05-18: Electrical
- [20V281000](/recalls/nhtsa/20V281000.md), 2020-05-18: ELECTRICAL SYSTEM:WIRING
- [20V211000](/recalls/nhtsa/20V211000.md), 2020-04-10: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [CXA\_10\_25\_Tech Questions](/bulletins/11024966.md), 2025-11-05, Other: ELECTRICAL SYSTEM; POWER TRAIN. CX Advocate for technical questions/issues raised
- [SF658](/bulletins/10233854.md), 2023-04-07, Service bulletin: POWER TRAIN; EQUIPMENT; ELECTRICAL SYSTEM. Field Service Campaign for Integrated Predictive Powertrain Control ECU. Resubmitting to fix a table formatting issue.
- [SF658](/bulletins/10232351.md), 2023-03-04, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. 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.
- [SF658](/bulletins/10230667.md), 2023-02-02, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. Revised Field Service Campaign for Integrated Predictive Powertrain Control ECU
- [ICI23\-001](/bulletins/10230658.md), 2023-02-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. Important Campaign Information Letter for SF658 Revised Bulletin, Intelligent Powertrain Management ECU
- [SF658](/bulletins/10226985.md), 2022-12-03, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. 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\-074](/bulletins/10207520.md), 2022-02-05, Service bulletin: EQUIPMENT. 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\-001](/bulletins/10201680.md), 2021-09-29, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY. 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\-080](/bulletins/10198595.md), 2021-06-29, Service bulletin: ELECTRICAL SYSTEM. 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\-WST2021](/bulletins/10198288.md), 2021-06-26, Service bulletin: ELECTRICAL SYSTEM. Western Star Service Solution for Low Voltage Disconnect \(LVD\) Troubleshooting: Western Star 5700 and New 4700.

JSON: [/v1/bulletins/10189332](/v1/bulletins/10189332)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20SBW54-057&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10189332&vehicle=Service%20bulletin%20SBW54-057)