NHTSA Service Bulletin 10213581: 2018-2021 Honda Cmx1100
Official manufacturer communication context for 2018-2021 Honda Cmx1100, 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.
"Newsletter - If the LCD screen is blank/inoperative and asterisks appear in place of the riding modes, perform the following test. Inspect the number five (15 amp) audio fuse next to the battery in the main fuse box. If failed, replace the fuse and disconnect the main multi pin connector from the Navi/audio unit. Power up the unit, and the fuse should not blow. You can also test with a known good Navi/audio unit. TechLine may be able to loan a known good Navi/audio unit if one is not available. If the fuse does not fail, the original Navi/audio unit is internally shorted and will need to be replaced. " Newsletter - We have heard of customers riding with the cruise ON with no intention of actually using the cruise control function. These customers have noticed an issue where the cruise ON light in the dash will intermittently turn off on its own and not turn on again until the ignition key is turned off and back on. This will cause a P0504 error code to be stored for a brake switch malfunction. However, there is no actual malfunction of the switch. The rear brake pedal has a brake light switch and a cruise cancel switch. The problem is when both switches are activated for longer than 30 seconds while riding. Newsletter - When installing the NC750X/D accessory light bar (p/n 08A70-MJL-D30 or p/n 08A70-MGS-D30), ensure the front cowl stay holes are drilled in the correct position. The distance between the two mounting holes should be 37mm. If the mounting holes are less than 37mm, the front cowl stay (p/n 08A70-MJL-D30 or p/n 08A70-MGS-D30) will need to be replaced to install the accessory light bar. Newsletter - If the indicator warning light is on at all times and the motorcycle functions normally, you could have a DTC code P170D (shift sensor ground fault) due to the unit not having the quick shift option installed.
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 10213581?
"Newsletter - If the LCD screen is blank/inoperative and asterisks appear in place of the riding modes, perform the following test. Inspect the number five (15 amp) audio fuse next to the battery in the main fuse box. If failed, replace the fuse and disconnect the main multi pin connector from the Navi/audio unit. Power up the unit, and the fuse should not blow. You can also test with a known good Navi/audio unit..
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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