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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
IK08000922019-05-03. Service bulletin. ELECTRICAL SYSTEM. The First Check to make when Troubleshooting any Body Controller or ESC Issue
IK07000972019-05-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit; Only vehicles Equipped with SCR
IK08005222019-04-08. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM. Repair Information for Damaged Headlight Connector
IK08001302019-04-08. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES, HYDRAULIC. Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
IK04000772019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; PARKING BRAKE. FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
IK16002072019-04-03. Service bulletin. STRUCTURE; STRUCTURE:BODY:DOOR. Wind noise at upper side of cab door
K12007162019-04-03. Service bulletin. ENGINE; EQUIPMENT:OTHER:LABELS. Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure
IK07000972019-04-03. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. NEW Ultrasonic DEF Head Unit; only models equipped with SCR Aftertreatment
NPN2019-04-01. Service bulletin. STEERING; EQUIPMENT. DUAL STEERING GEAR AIR BLEED PROCEDURE
IK14000052019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:DRIVELINE; EQUIPMENT. Driveline Information Center and Troubleshooting Procedures
IK08005222019-04-01. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. Repair Information for Damaged Headlight Connector
IK08001302019-04-01. Service bulletin. ELECTRICAL SYSTEM. Air Pressure Gauges and A/C Pressure Transducer Troubleshooting
IK05000592019-04-01. Service bulletin. STEERING. Steering Noise in Vehicles Equipped with Dual Steer
IK04000772019-04-01. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES. FLR-10 Bendix Wingman Misalignment Issues; only models with Feature Code 08TKY Wingman FLR-10 Radars
4328530R12019-04-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tool Instruction - BCM Programming Harness
IK08005032019-03-04. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE AND ENGINE COOLING. ISB Starting System Diagnostics; Only models built with cummins ISB engines
IK07000972019-03-04. Service bulletin. EQUIPMENT. NEW Ultrasonic DEF Head Unit
IK08001142019-02-25. Service bulletin. EQUIPMENT. Vehicle Speed ( VSS ) Output for Bodybuilders
IK08000592019-02-25. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS. Brake Lights Staying On
IK08000172019-02-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. Programing New Key Fobs
IK19000222018-10-15. Service bulletin. ENGINE. A/C Refrigerant and Oil Capacities
IK12012992018-10-15. Service bulletin. ENGINE. Engine Oil Capacities All Electronic International Engines 1994 - Present. Cummins ISB, ISM & ISX
IK08004752018-10-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Diagnostics and Information
IK12007162018-08-20. Service bulletin. EQUIPMENT. Engine Emission Label Replacement, Certificate of Conformance and Clean Idle Sticker Addition Procedure; only Navistar Powered Trucks
IK12001012018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. Cummins Programming Guide and Cummins 285 Fault Code; Only pre-2007 models built with Cummins ISM Engine

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