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Service bulletins for the 2015 International Workstar

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.

254 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
AFC159012017-12-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STRUCTURE. Vehicles equipped with an air intake snow valve may have incorrect programming in the body controller. This condition may cause the snow valve to remain open and draw outside air.
IK29000302017-12-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Dealer EZ-Tech and Diagnostic Software Support Resource Center
IK08003362017-09-08. Service bulletin. ELECTRICAL SYSTEM:HORN. Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
REC155092017-09-08. Service bulletin. ELECTRICAL SYSTEM. A jump start or electrical load dump event could result in an overvoltage condition of the cab Linear Power Module (LPM). The overvoltage condition could eventually cause overheating of the LPM circuit board.
REC155022017-09-08. Service bulletin. ELECTRICAL SYSTEM. Recalibration of the Electronic Control Module (ECM). This will prevent the possibility of damage to an emissions system control sensor and improve exhaust aftertreatment regeneration performance.
REC145032017-08-16. Service bulletin. ELECTRICAL SYSTEM. ECM Recalibration; This will reduce false positive fault codes and frequent aftertreatment regeneration lights
IK15000842017-08-16. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. Applying Snow Valve Advanced Logic
IK08005202017-08-16. Service bulletin. ELECTRICAL SYSTEM. Ground Splice 6747 Causing Multiple Fault Codes
IK08005172017-08-16. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Cummins ISB Engine Remote Engine Speed Control with Feature 12XAT
IK08004142017-08-16. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. Windows Stop Randomly or are Inoperative, Power Door Locks are inoperative
IK08004412017-08-16. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. Adding an Electronic Trailer Brake Controller
REC145122017-04-19. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. EMISSIONS RECALL; ECM SOFTWARE UPDATE; THE RECALIBRATION WILL REDUCE INCORRECT FAULT CODES AND PREVENT DIESEL PARTICULATE FILTER
IK08004632016-11-08. Service bulletin. ELECTRICAL SYSTEM. HIGH OR SPIKING VOLTAGE ONLY WITH LEECE-NEVILLE ALTERNATOR USING REMOTE VOLTAGE SENSE
MIN141212016-11-07. Service bulletin. ENGINE; ELECTRICAL SYSTEM. VEHICLES EQUIPPED WITH A BATTERY DISCONNECT SWITCH MIGHT ENCOUNTER AN ISSUE WHERE THE DIESEL EXHAUST FLUID (DEF) FREEZES INSIDE THE PURGE PUMP DUE TO THE AFTERTREATMENT CONTROL MODULE (ACM) NOT RECEIVING BATTERY POWER
MIN141202016-11-07. Service bulletin. ELECTRICAL SYSTEM. INSPECT STARTER CABLE ROUTING; ONLY WITH N13 SCR ENGINES.
IK08004752016-10-31. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. RADIO DIAGNOSTICS AND INFORMATION
MIN-141212015-01-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. NAVISTAR: DIESEL EXHAUST FLUID (DEF) WILL FREEZE INSIDE PURGE PUMP DUE TO AFTERTREATMENT CONTROL MODULE (ACM) NOT RECEIVING BATTERY POWER (BATTERY DISCONNECT SWITCH), AND PURGE CYCLE FAILS TO COMPLETE, AFTER IGNITION KEY IS OFF. MODEL PROSTAR, WORKSTAR. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.