NHTSA service bulletin

NHTSA Service Bulletin 10240478: 2023 Harley-davidson Flhxse

Official manufacturer communication context for 2023 Harley-davidson Flhxse, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10240478 summary graphic for 2023 Harley-davidson Flhxse
10240478NHTSA document ID
Technical service bulletincommunication type
2affected product rows
90/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

SERVICE BULLETIN M1598: WINDSHIELD COSMETICS FOR 2023 CVO STREET GLIDE (FLHXSE) AND ROAD GLIDE (FLTRXSE). PURPOSE: This bulletin informs dealers that the 2023 CVO Street Glide (FLHXSE) and Road Glide (FLTRXSE) windshields could exhibit a visible knit line by the four mounting holes. The new CVO windshields are injection molded which enables a more intricate geometry required for the new design. Knit lines are inherent to the injection molding process when holes, slots, etc. are molded into the part. During the molding process, molten material flows around the core pin and knits together causing a fine line to appear. Knit lines are unavoidable and not considered a defect or warrantable concern. They are not a crack or a scratch in the material and the windshield will function as intended. Side air deflectors are also injection molded components and can exhibit knit lines around the mounting fasteners. Other Harley-Davidson windshields used a different manufacturing process that did not produce knit lines but also limited the shape of the windshields.

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

MakeModelModel yearsBuyer note
Harley-davidsonFlhxse2023Ask for service records and run the exact VIN before purchase.
Harley-davidsonFltrxse2023Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10240478?

SERVICE BULLETIN M1598: WINDSHIELD COSMETICS FOR 2023 CVO STREET GLIDE (FLHXSE) AND ROAD GLIDE (FLTRXSE). PURPOSE: This bulletin informs dealers that the 2023 CVO Street Glide (FLHXSE) and Road Glide (FLTRXSE) windshields could exhibit a visible knit line by the four mounting holes. The new CVO windshields are injection molded which enables a more intricate geometry required for the new design. Knit lines are.

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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