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Service bulletin WI19-022

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 id10169679
Published by NHTSA2020-01-02
Manufacturer's numberWI19-022
Manufacturer's date2020-01-02
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems

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, Engine, Equipment and accessories

Vehicles listed
FCCC MT552015 to 2020
FCCC S22016
FCCC S2G2015 to 2017
FCCC S2G2019 to 2020
FCCC S2RV2017 to 2020
FCCC XBP2015 to 2020
FCCC XBR2015 to 2019
FCCC XBS2015 to 2019
FCCC XCL2015 to 2019
FCCC XCM2015 to 2020
FCCC XCP2015 to 2019
FCCC XCR2015 to 2020
FCCC XCS2015 to 2019
FCCC redundant S2G2018
FREIGHTLINER 108SD2015, 2016, 2017, 2018, 2019, 2020
FREIGHTLINER 114SD2015, 2016, 2017, 2018, 2019, 2020
FREIGHTLINER 122SD2015 to 2020
FREIGHTLINER BUSINESS CLASS M22015 to 2020
FREIGHTLINER CASCADIA2015, 2016, 2017, 2018, 2019, 2020
THOMAS BUILT BUSES SAF-T-LINER C22015 to 2020
THOMAS BUILT BUSES SAF-T-LINER EFX2015 to 2020
THOMAS BUILT BUSES SAF-T-LINER HDX2015 to 2020
WESTERN STAR 47002015, 2016, 2017, 2018, 2019, 2020
WESTERN STAR 48002015, 2016, 2017, 2018, 2019, 2020
WESTERN STAR 49002015, 2016, 2017, 2018, 2019, 2020
WESTERN STAR 57002015, 2016, 2017, 2018, 2019, 2020
WESTERN STAR 69002015, 2016, 2017, 2018, 2019, 2020

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
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
20204082020-09-01. Engine

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 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_Heater Core2026-01-08. Other. Fleet Communications for Heater Core Plugging
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
FleetCom_SS 3163-FTL2025-12-06. Other. Fleet Communications for Power Steering Reservoir Fill Cap Venting
FleetCom_Low Coolant2025-12-05. Other. Fleet Communications for Low Coolant Sensor
CXA_10_25_Low Coolant2025-11-05. Other. CX Advocate for P4, WST X-Series, DD Engines Low/Critical Low Coolant Warnings
CXA_10_25_Conmet Oil Pan2025-11-05. Other. CX Advocate for ConMet Oil Pan Insert Additional Issues
SS3124-FTL2025-06-27. Other. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue