2021 Honda CMX300 Problems, Complaints & Recalls
- Compared with other CMX300 years
- Not enough data 2nd of 10 for complaints
- Safety recalls
- 2 recalls: check your VIN
- NHTSA crash rating
- Not rated
NHTSA has received no owner complaints about the 2021 Honda CMX300 so far. There are 2 safety recalls covering this model year.
- 0owner complaints
- 2safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
2021 Honda CMX300 recalls (2)
Tap a recall to see the problem, the risk and the fix.
Steering:critical fasteners; steering: steering wheel/handle bar
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.
Exterior lighting
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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Other Honda CMX300 years
| Year | Complaints | Recalls |
|---|---|---|
| 2026 CMX300 | 0 | 1 |
| 2025 CMX300 | 0 | 2 |
| 2024 CMX300 | 0 | 1 |
| 2023 CMX300 | 1 | 3 |
| 2022 CMX300 | 0 | 1 |
| 2021 | 0 | 2 |
| 2020 CMX300 | 0 | 2 |
| 2019 CMX300 | 0 | 2 |
| 2018 CMX300 | 0 | 2 |
| 2017 CMX300 | 0 | 1 |
See all Honda CMX300 problems by year, every Honda model, or the Honda VIN decoder.
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Frequently asked questions
What are the most common problems with the 2021 Honda CMX300?
NHTSA has no owner complaints on file yet.
Was there a recall on the 2021 Honda CMX300?
Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Honda CMX300 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other CMX300 model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.