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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
IK14000052020-09-02. Service bulletin. ENGINE; EQUIPMENT. Driveline Information Center and Troubleshooting Procedures
IK08005042020-09-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN. Repair Procedures for Vehicles Struck by Lightning
IK08002842020-08-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK19000222020-07-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. A/C Refrigerant and Oil Capacities
IK08004752020-06-02. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. Radio Diagnostics and Information
IK12014422020-05-06. Service bulletin. ENGINE AND ENGINE COOLING. 5 gallon SSI DEF level sensor/ multifunction head unit retrofit; only 2014 and 2015 models year built with Navistar N9/N10 engines
IK16002582020-04-02. Service bulletin. UNKNOWN OR OTHER; SEATS; LATCHES/LOCKS/LINKAGES; EQUIPMENT; SEAT BELTS. Cleaning and Disinfecting Trucks and Buses
IK08000802020-03-04. Service bulletin. ELECTRICAL SYSTEM. J1939 Data Link Troubleshooting
IK04001592020-02-04. Service bulletin. SERVICE BRAKES, HYDRAULIC. Bendix EC80 Blank Module Replacement Program; This document will guide the user through selecting the correct ABS module when it has been determined a replacement is needed. Only Models with EC-80 ABS Controller
IK08002242020-01-07. Service bulletin. ELECTRICAL SYSTEM. Power Distribution Center (PDC) Replacement; 7000 (Workstar) Model Series with Allison or Manual Transmissions
IK16002072019-12-03. Service bulletin. STRUCTURE. Wind noise at upper side of cab door due to door out of alignment
IK09001352019-12-03. Service bulletin. VISIBILITY. WorkStar Hybrid Mount to Pad Mount A/C Compressor Retrofit
IK08003642019-12-03. Service bulletin. ENGINE AND ENGINE COOLING. Stand Alone Real Time (SART) Module Diagnostics. Only 2010 and later models equipped with MaxxForce® 11/13/15 engines or N13 with feature 0508051
IK08002842019-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Ambient Air Temperature (AAT) Sensor Faults/Location/Diagnostics
IK07000972019-11-05. Service bulletin. ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit; All SCR vehicles
IK09001352019-11-05. Service bulletin. VISIBILITY. WorkStar Hybrid Mount to Pad Mount A/C Compressor Retrofit; only models with Cummins ISB 6.7 engine
IK12012992019-10-03. Service bulletin. ENGINE AND ENGINE COOLING. Oil Capacities; All Electronic International Engines 1994 - Present. Cummins ISB, ISM & ISX
IK14000232019-08-02. Service bulletin. SUSPENSION. Suspension Lean Diagnostics; All models
IK08003512019-07-02. Service bulletin. ELECTRICAL SYSTEM. J1939 Data Link Source Address Information
IK07000792019-07-02. Service bulletin. ENGINE AND ENGINE COOLING. SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK08004842019-06-07. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Voltage gauge drops on cold engine start-up; Only models built with Cummins ISB, B6.7, ISL, or L9 engines
IK07000972019-06-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit available; Only models equipped with SCR Aftertreatment.
IK02000132019-06-07. Service bulletin. SUSPENSION; STEERING. Suggested alignment target values when performing a vehicle axle alignment
IK17000072019-05-03. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Bendix SmartWave SmarTire Pressure Maintenance System TPMS
IK16001312019-05-03. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE; VISIBILITY:WINDSHIELD; STRUCTURE:BODY:ROOF AND PILLARS. Cab Water Leak Troubleshooting Tips; Excluding 9000i, PayStar(HX), CityStar, or LoadStar

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