2020 Honda C125 problems, complaints & recalls
Safety recalls (1)
Exterior Lighting 2021-05-24 · campaign 21V382000 · 28,528 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2020-2021 Super Cub C125, CB500X, CB650R, CBR300R, CBR500R, CBR650R, Rebel 300, Rebel 500, Monkey, 2020 CRF250L, GROM, 2021 CRF300L, and CB500F motorcycles. The rear reflector lens may not reflect brightly enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: A dim rear reflector may reduce the visibility of the motorcycle to other drivers, increasing the risk of a crash or injury.
Fix: Dealers will replace the rear reflector, free of charge. Owner notification letters were mailed July 7, 2021. Owners may contact Honda customer service at 1-866-784-1870. Honda's number for this recall is KM3.
Service bulletins (7)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Fuel/Propulsion System 2026-08-20 · C125 #1 - August 2026 · Service Bulletin/Repair Instructions
service bulletin - a fuel permeation test revealed that the fuel system does not meet regulatory standards. the fuel system has a lower than expected permeation value and is not within emission certification compliance.
Fuel/Propulsion System 2026-08-20 · MCPSC08202026904 · Other
dealer message - the full service bulletin and parts availability for the emissions recall relating to 2019-2024 c125 super cub fuel system (c125 #1) have been delayed until january 2027. dealers will be notified again by in message once the bulletin and parts become available.
Fuel/Propulsion System 2026-04-29 · ONLKT404292026 · Emissions
"owner notification letter - american honda motor, inc. is conducting a voluntary recall for all 2019 - 2024 c125 super cub motorcycles. our records indicate that you may own one of these motorcycles. this notice is sent to you in accordance with the environmental protection agency regulations."
Fuel/Propulsion System 2026-02-26 · C125 #1 - February 2026 · Service Bulletin/Repair Instructions
service bulletin - a fuel permeation test revealed that the fuel system does not meet regulatory standards. the fuel system has a lower than expected permeation value and is not within emission certification compliance.
Fuel/Propulsion System 2025-11-21 · MCPSC11202025902 · Other
dealer message - a fuel system permeation test revealed that the fuel system does not meet regulatory standards and is not in compliance.
Fuel/Propulsion System 2025-10-31 · C125 #1 - October 2025 · Service Bulletin/Repair Instructions
service bulletin - a fuel permeation test revealed that the fuel system does not meet regulatory standards. the fuel system has a lower than expected permeation value and is not within emission certification compliance.
Showing the 6 most recent of 7 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.