The Used Car Index

2019 Honda CMX300 problems

No complaints are listed for the 2019 Honda CMX300. NHTSA's API and bulk file list none in this build.

Data build 2026-10-09.

NHTSA lists this vehicle as HONDA CMX300.

At a glance

Complaints
0
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
2
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
43,913
Investigations
0
Open investigations
0
Manufacturer communications
1

Complaints per 100k sold unavailable. No sales source is available for this record.

Model-generated complaint tags: No complaints are listed for tagging.

Recalls

See new recalls and investigations this week.

2 recalls.

26V500000

Date: 2026-07-30. Systems: STEERING.

Defect: 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.

Consequence: A detached screw may lodge between the frame and stem, interfering with steering and increasing the risk of a crash or injury.

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.

Do not drive: No. Park outside: No.

19V412000

Date: 2019-06-04. Systems: POWER TRAIN.

Defect: 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.

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.

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.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

1 manufacturer communications.

Communications by system
SystemCount
ENGINE AND ENGINE COOLING1
EQUIPMENT1
EQUIPMENT ADAPTIVE/MOBILITY1

10187554

Date: 2021-02-19. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING, EQUIPMENT, EQUIPMENT ADAPTIVE/MOBILITY.

The Wrench - If the right engine cover is leaking coolant on any of the models listed, this could be due to the water pipe causing a gap at the clutch cover side. Replacing the O-ring will not fix the leak. Instead, replace the water pipe.

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.
  • NHTSA's complaints API and bulk file list no complaint for this make, model and model year in this data build.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
CMX3000

Same model, other years

All model years | All Honda models

Other Honda models, 2019

Sources

Get this record as JSON

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curl "https://api.theusedcarindex.com/v1/demo/vehicle_risk?make=Honda&model=CMX300&year=2019"

Paid endpoint: https://api.theusedcarindex.com/v1/vehicle_risk. MCP endpoint: https://api.theusedcarindex.com/mcp.