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Service bulletin WP21-007

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 id10189319
Published by NHTSA2021-03-24
Manufacturer's numberWP21-007
Manufacturer's date2021-03-22
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.

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
FCCC MT452015 to 2022
FCCC MT552015 to 2022
FCCC S2G2015 to 2017
FCCC S2G2019 to 2020
FCCC S2RV2017 to 2021
FCCC XBP2015 to 2021
FCCC XBR2015 to 2021
FCCC XBS2015 to 2021
FCCC XCL2015 to 2021
FCCC XCM2015 to 2021
FCCC XCP2015 to 2021
FCCC XCR2015 to 2021
FCCC XCS2015 to 2021
FCCC redundant S2G2018
FREIGHTLINER 108SD2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
FREIGHTLINER 114SD2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
FREIGHTLINER 122SD2015 to 2021
FREIGHTLINER BUSINESS CLASS M22015 to 2022
FREIGHTLINER CASCADIA2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
FREIGHTLINER ECONIC SD2019 to 2021
THOMAS BUILT BUSES SAF-T-LINER C22015 to 2022
THOMAS BUILT BUSES SAF-T-LINER EFX2015 to 2021
THOMAS BUILT BUSES SAF-T-LINER HDX2015 to 2021
WESTERN STAR 47002015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 49002015, 2016, 2017, 2018, 2019, 2020, 2021
WESTERN STAR 57002015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
WESTERN STAR 69002015, 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
22V1010002022-02-22. SERVICE BRAKES; ELECTRICAL SYSTEM:SOFTWARE
20216972021-11-12. Electrical
21V8820002021-11-12. ELECTRICAL SYSTEM:WIRING
20213992021-06-25. Electrical
21V4810002021-06-25. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
20211722021-03-24. Electrical
21V2060002021-03-24. ELECTRICAL SYSTEM:WIRING
20V6340002020-10-14. EQUIPMENT:OTHER:LABELS; TIRES

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
SS 3175-FTL2026-05-02. Other. Service Solution for Progressive Low Voltage Disconnect Parameter Update
SS 3146-FTL2026-05-02. Other. Service Solution for M2, 108SD, 114SD - Unable to Program Replacement Bulkhead Module - Certain Model Years
SS 3124-FTL2026-05-02. Other. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
FleetCom 1_Solenoid2026-05-02. Other. Fleet Communications for solenoid issues
FleetCom_ECU Faults2026-02-05. Other. Fleet Communications for Intermittent Connections and ECU Fault Codes
FleetCom_ECU Faults2026-01-08. Other. Fleet Communications for Corrosion Protecton/Glyptal Application
FleetCom_SS 3174-FTL2025-12-06. Other. Fleet Communication for SS 3174-FTL
FleetCom_AMP Draw2025-12-06. Other. Fleet Communications for Key off amp draw
CXA 11_25_ECU Faults2025-12-02. Other. CX Advocate for Intermittent Connections and ECU Fault Codes
CXA_10_25_Tech Questions2025-11-05. Other. CX Advocate for technical questions/issues raised