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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

Bulletins, newest first
IK12013602017-12-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Cylinder Performance Analyzer (CPA) Resource Center; Only models with 2004 thru 2017 International engines.
REC155042017-12-14. Service bulletin. SERVICE BRAKES, HYDRAULIC; PARKING BRAKE. A diaphragm in the spring brake chamber may not be seated fully into the pressure plate and may cause internal leakage in the chamber, resulting in the parking brake to not fully release and drag.
IK19002282017-12-14. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. 2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
IK08003362017-09-08. Service bulletin. ELECTRICAL SYSTEM:HORN. Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
AFC149022017-09-08. Service bulletin. ENGINE. A new calibration has been made available for emergency vehicles that prevents the possibility of engine derate or eventual shutdown due to the potential need for aftertreatment regeneration during emergency service.
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.
IK19002282017-09-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. 2010 and Newer Vehicle Air Conditioning Diagnostics (Start Here)
IK19002122017-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Front Blower Motor Runs Breifly At Initial Power Up
IK16000232017-09-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Mirror Repair Procedures and Replacement Parts Availability
IK15000802017-09-08. Service bulletin. FUEL SYSTEM, OTHER. Updated Snow Valve Motor and Harness Installation Procedure
IK11000052017-09-08. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY. Eaton Clutch Information
IK08002962017-09-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC faults 520211 and 520465
IK07000322017-09-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. DPF Snap Accel Test - Quick Test to All vehicles with DPFs
IK04001462017-09-08. Service bulletin. ENGINE. N13, MaxxForce 11, 13 engine Two Cylinder Air Compressor Testing
IK04001252017-09-08. Service bulletin. SERVICE BRAKES. Rear S Cam Tube / Bracket part update
REC155032017-09-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Emergency vehicle calibration will reduce the engine exhaust soot levels that enter the aftertreatment system and prevent the possibility of engine derate or eventual shutdown due to lack of performing exhaust system regeneration as a result of extensive idling typical of emergency vehicles.
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.
MIN151042017-09-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Certain WorkStar vehicles may experience a condition where the lower CAC inlet hose clamp is rubbing against the hood when closed.
IK19002282017-09-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Vehicle Air Conditioning Diagnostics (Start Here)
IK15000802017-09-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, OTHER. Updated Snow Valve Motor and Harness Installation Procedure
IK15000742017-09-08. Service bulletin. ENGINE. Fuel Filters, Winter Additives, and Blending Fuels for Cummins ISX Engines
IK15000572017-09-08. Service bulletin. ENGINE. Davco Fuel Filter Replacements Recommendation for Maxx Force 11 and 13, 2010 Engines
IK15000352017-09-08. Service bulletin. FUEL SYSTEM, OTHER. Dual Fuel Tank Transfer Pump Troubleshooting on Post-2007 NGV and ProStar
IK15000052017-09-08. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. Dual Fuel Tank Transfer Pump System With Two Wire Pump Troubleshooting; equipped with feature 595192 built after 08/19/2002
IK08000922017-09-08. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). The First Check to make when Troubleshooting any Body Controller or ESC Issue

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