WenmarOpen by Wenmar Pro

Service bulletins for the 2014 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.

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

By type

By component

Bulletins, newest first
IK19002282018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Air Conditioning Diagnostics
IK19002262018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Air Conditioning Control Head Diagnostics
IK08004852018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Cluster Software Update Instructions
IK08000802018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL. J1939 Data Link Troubleshooting
IK08005462018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. HVAC fault 2609-19 with 4th Gen BCM; Only models equipped with 4th generation BCM
IK07000972018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. NEW Ultrasonic DEF Tank Sending Unit; only models with SCR Aftertreatment system.
IK07000962018-04-02. Service bulletin. ELECTRICAL SYSTEM. Urea Quality Sensor (UQS) Supplemental Diagnostic and Service Information; only models with SCR Aftertreatment system and N9, N10, N13, A26 or Cummins ISB, ISL, ISX engines built from January 2016
MIN171132018-04-02. Service bulletin. SUSPENSION:MULTIPLE AXLE:TORQUE ARM; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER. The retaining nut securing the turbocharger oil supply line may not be tightened to its specified torque.
IK09001212018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. HVAC line rub; only models equipped with Cummins ISB series engines and stationary grille feature code 009HBM
IK08005222018-04-02. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. Repair Information for Damaged Headlight Connector
IK05000592018-04-02. Service bulletin. STEERING. Steering Noise in Vehicles Equipped with Dual Steer; Only models equipped with dual steering gear
IK08000802018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. J1939 Data Link Troubleshooting
IK07000792018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SCR Vehicles Setting 3363-16 (FC1713) due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
IK08004762018-04-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE. Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield
IK08003522018-04-02. Service bulletin. ELECTRICAL SYSTEM. Body Controller/ESC Software Updates
IK08003362018-04-02. Service bulletin. ELECTRICAL SYSTEM:HORN. Horn Sounds On Its Own While Vehicle Parked - OR - Horn Inoperative
IK08001962018-04-02. Service bulletin. ELECTRICAL SYSTEM. Asterisk in Lower Right Quadrant of Dash Display
IK08000562018-04-02. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Retrieving Fault Codes Through the Cluster Doesn?t Work
IK08000142018-04-02. Service bulletin. ELECTRICAL SYSTEM:HORN. City Horn Blows When Driver Shuts off Truck and Walks Away; only equipped with with ESC or Body Controller
IK07000712018-04-02. Service bulletin. ENGINE. Ordering SCR Aftertreatment Parts for Vehicles Powered by Cummins Engines
IK07000652018-04-02. Service bulletin. ENGINE. Ordering SCR Aftertreatment Parts for Vehicles With Navistar Engines
AFC149012018-04-02. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER. Certain MaxxForce DT, 9, 10 engines with feature code 15LKG were built with incorrect fuel filter assembly, thereby missing the integral 12-volt, 250-watt fuel heater
IK25005112018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Using Supplier Software to Check DTCs
IK08000592018-04-02. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS. Brake Lights Staying On
IK08004762018-04-02. Service bulletin. VISIBILITY:WINDSHIELD. Cracked Windshields on Units Equipped With Feature 595AMP - Heated Windshield

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