NHTSA vehicle safety data
2018 Honda CMX300 Recalls, Ratings & Complaints
The 2018 Honda CMX300 has 2 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Honda dealer.
NHTSA recall and complaint data for the 2018 Honda CMX300. Recall data is refreshed daily from NHTSA.
STEERING: STEERING WHEEL/HANDLE BAR
NHTSA #26V500000Reported July 30, 2026 · Honda (American Honda Motor Co.)
Potentially affected: 43,913 vehicles
Defect description
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.
Safety consequence
A detached screw may lodge between the frame and stem, interfering with steering and increasing the risk of a crash or injury.
Manufacturer remedy
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.
POWER TRAIN:MANUAL TRANSMISSION
NHTSA #19V412000Reported June 4, 2019 · Honda (American Honda Motor Co.)
Potentially affected: 3,898 vehicles
Defect description
Honda (American Honda Motor Co.) is recalling certain 2019 CB300R, 2018 CBR300R, 2018 CRF250L, 2018 CRF250L Rally, and 2018-2019 CMX300 motorcycles. The circlip, on the transmission's main shaft, may detach allowing for gear misalignment.
Safety consequence
A misaligned gear can shift the transmission from neutral into gear during engine start, potentially resulting in unexpected motorcycle movement or seize the transmission and rear wheel while the motorcycle is in motion. Both conditions increase the risk of crash or injury.
Manufacturer remedy
Honda will notify owners, and dealers will replace the transmission main shaft, free of charge. The recall began July 8, 2019. Owners may contact Honda customer service at 1-866-784-1870. Honda's number for this recall is KK3.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other Honda CMX300 model years
Check your 2018 Honda CMX300 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Honda CMX300 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Honda VIN