NHTSA Service Bulletin 11014023: Harley-davidson Americana
Official manufacturer communication context for model years not specified Harley-davidson Americana, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
SERVICE BULLETIN M1666: SKYLINE OS VERSION 4125D SOFTWARE UPDATE. PURPOSE: NOTE: Service Bulletin M1666 supersedes M1635. Repairs made to vehicles after January 27th, 2025 following M1635 will not be accepted through warranty. Warranty claims on repairs made prior to January 27th, 2025 will be accepted following standard claim submission policy and process. This bulletin informs dealers that there is a Skyline OS software update for the 2023 and 2024 Touring vehicles equipped with an Infotainment Control Unit (IFCU). This software update (260004125D) will bring 2023 and 2024 IFCU equipped vehicles to the most up to date software version. This update should be performed on bikes exhibiting concerns covered in the release notes to be covered under warranty. The software update will add features and address a series of bugs within 2023 and 2024 vehicles equipped with the Skyline OS. This update can be applied to all current software versions: 240001467D, 240002100D, 240002111D and 240002237D.
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11014023?
SERVICE BULLETIN M1666: SKYLINE OS VERSION 4125D SOFTWARE UPDATE. PURPOSE: NOTE: Service Bulletin M1666 supersedes M1635. Repairs made to vehicles after January 27th, 2025 following M1635 will not be accepted through warranty. Warranty claims on repairs made prior to January 27th, 2025 will be accepted following standard claim submission policy and process. This bulletin informs dealers that there is a Skyline OS.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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