2020 Honda CMX300 problems & recalls
NHTSA recalls and owner complaints for the 2020 Honda CMX300.
Recalls
Exterior Lighting #21V382000 · 2021 · 28,528 units
Problem: 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.
Steering #26V500000 · 2026 · 43,913 units
Problem: Honda (american honda motor co.) is recalling certain 2017-2023, 2025 cmx500, 2017-2023, 2025-2026 cmx300, and 2025 honda scl500 motorcycles. the handlebar lock screw may loosen and detach.
Risk: A detached screw may lodge between the frame and stem, interfering with steering and increasing the risk of a crash or injury.
Fix: Dealers will replace the lock screw and apply thread lock, free of charge. owner letters were mailed september 29, 2026. owners may contact honda's customer service at 1-866-784-1870. honda's number for this recall is ku8. this recall expands previous nhtsa recall number 26v146. vehicle identification numbers (vins) involved in this recall will be searchable on nhtsa.gov beginning august 4, 2026.
Recalls can cover only some VINs. Check yours at nhtsa.gov/recalls.
What owners complain about
No owner complaints filed with NHTSA for this model year.
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Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2020 CMX300.
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Specs
Specs coming soon. We only publish specs taken from the manufacturer's own spec sheets.
Other years
FAQ
Does the 2020 Honda CMX300 have recalls?
NHTSA lists 2 recalls for the 2020 Honda CMX300. Check your VIN at nhtsa.gov/recalls to see if a fix is still open.
What are the most common 2020 Honda CMX300 problems?
No owner complaints have been filed with NHTSA for this model year.