NHTSA Service Bulletin 11016418: 2025 Wilson Grain
Official manufacturer communication context for 2025 Wilson Grain, 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.
TECHNICAL SERVICE BULLETIN RE:HYDRO-Trap Kar-Tech Remote Dear HYDRO-Trap Trailer Owner: This Technical Service Bulletin is being sent to you as an owner of a Wilson trailer with a HYDRO-Trap system. Your HYDRO-Trap opening system was provided with vendor supplied manual switches on the side rail of the trailer, and a compatible Kar-Tech remote control. This remote is paired to a receiver which controls the trap operation on your trailer. This pairing is through a preexisting frequency from the Kar-Tech manufacturer. CAUTION: A potential issue exists with the Kar-Tech remote frequency pairing, which may inadvertently be paired with another trailers receiver. This may cause an issue where the use of your remote may cause the trap door on another trailer to open if on the same pairing frequency and within the frequency range. Do not use your remote to operate your trap doors until you have performed the correction below. CORRECTION: Please see the enclosed instructions on how to reprogram your Kar-Tech remote and re-pair it with the receiver on your trailer. There is also a QR Code in the lower corner of this letter that you can use to view a video of the process.
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 11016418?
TECHNICAL SERVICE BULLETIN RE:HYDRO-Trap Kar-Tech Remote Dear HYDRO-Trap Trailer Owner: This Technical Service Bulletin is being sent to you as an owner of a Wilson trailer with a HYDRO-Trap system. Your HYDRO-Trap opening system was provided with vendor supplied manual switches on the side rail of the trailer, and a compatible Kar-Tech remote control. This remote is paired to a receiver which controls the trap.
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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