NHTSA vehicle safety data

2021 Honda CRF300L Recalls & Complaints

The 2021 Honda CRF300L has 1 NHTSA recall campaign and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Honda dealer.

NHTSA recall and complaint data for the 2021 Honda CRF300L. Recall data is refreshed daily from NHTSA.

2021 Honda CRF300L owner complaints

Owners have filed 1 complaint with NHTSA about the 2021 Honda CRF300L, describing incidents dated July 1, 2022.

Most-cited components

Engine 1 complaint

Newest complaints

ODI #11471960 · Filed July 1, 2022
The oil seal behind the Mechanical Seal in the engine has Failed 3 times. Oil leaks from a small drain pipe on the bottom of the engine on the front right side, below the water pump assembly. When the Oil seal fails oil leaks from the drain pipe dripping oil in front of the rear wheel. I noticed…

Read the full complaint

Dim Rear Reflector Lens/FMVSS 108

NHTSA #21V382000 · Exterior Lighting · NHTSA notice

Reported May 24, 2021 · Honda (American Honda Motor Co.)

Potentially affected: 28,528 vehicles

Repair completion: 34.28% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Honda campaign KM3 · Owners notified July 7, 2021

Defect description

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."

Safety consequence

A dim rear reflector may reduce the visibility of the motorcycle to other drivers, increasing the risk of a crash or injury.

Manufacturer remedy

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.

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.nhtsa.gov.

try.vin has no NCAP crash-test rating on file for the 2021 Honda CRF300L. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

1 owner complaint has been filed with NHTSA for the 2021 Honda CRF300L.

Engine

ODI #11471960

Incident: July 1, 2022 · Filed: July 1, 2022

The oil seal behind the Mechanical Seal in the engine has Failed 3 times. Oil leaks from a small drain pipe on the bottom of the engine on the front right side, below the water pump assembly. When the Oil seal fails oil leaks from the drain pipe dripping oil in front of the rear wheel. I noticed this and see that the rear tire can contact the dripping oil and cause a slick and slippery situation where the rear wheel can loose traction and control, thus ending in bodily harm. The oil seal and mechanical seal failure is a know issue on the CRF 250 and 300 as they use the same bottom end of the motor. It is my advice for NHTSA to look into the issue have Honda re-engineer the Mechanical and Oil seals so there can be no failure. Luckily I have not had the oil seal fail to the point of an accident. I do not trust the motorcycle and will not ride it. Honda will not take it back thus I will sell or trade it to someone else with full disclosure. Sincerely, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Check your 2021 Honda CRF300L VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Honda CRF300L at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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