WenmarOpen by Wenmar Pro

Service bulletin Service Bulletin

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10108522
Published by NHTSA2017-07-12
Manufacturer's numberService Bulletin
Manufacturer's date2015-12-21
NHTSA componentELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY

NHTSA's summary

Service bulletin - Honda Motor Co., Ltd is conducting a Safety Recall of motorcycles and scooters listed in the AFFECTED UNITS section of this bulletin. Honda has determined that a defect within certain starter relay switch assemblies can cause an increase in resistance at the main fuse, potentially interrupting battery voltage to the electrical system which can cause the engine to A) not start or B) stall while riding. In an extreme case, the increased resistance at the main fuse may cause the starter relay switch to catch on fire.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Starter

Vehicles listed
HONDA CB300F2015
HONDA CB500F2014, 2015
HONDA CB500FA2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
HONDA CB500X2014, 2015
HONDA CB500XA2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
HONDA CBR300R2015
HONDA CBR300RA2015 (the catalog's model; the bulletin names a series or trim of it)
HONDA CBR500R2014, 2015
HONDA CBR500RA2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
HONDA CBR600RA2015
HONDA CBR600RR2015
HONDA CBR650F2014, 2015
HONDA CBR650FA2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
HONDA CRF250L2014, 2015
HONDA NSS3002014 to 2015
HONDA NSS300A2014 to 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
15V4390002015-07-08. ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SERVICE BULLEITN2017-06-21. Service bulletin. SERVICE BULLETIN - HONDA MOTOR CO., LTD IS CONDUCTING A SAFETY RECALL OF MOTORCYCLES AND SCOOTERS LISTED IN THE AFFECTED UNITS SECTION OF THIS BULLETIN. HONDA HAS DETERMINED THAT A DEFECT WITHIN CERTAIN STARTER RELAY SWITCH ASSEMBLIES CAN CAUSE AN INCREASE IN RESISTANCE ACROSS THE MAIN FUSE, POTENTIALLY INTERRUPTING BATTERY VOLTAGE TO THE ELECTRICAL SYSTEM WHICH CAN CAUSE THE ENGINE TO A) NOT START OR B) STALL WHILE RIDING.
SERVICE BULLETIN2017-06-19. Service bulletin. "SERVICE BULLETIN - HONDA MOTOR CO., LTD IS CONDUCTING A SAFETY RECALL OF MOTORCYCLES AND SCOOTERS LISTED IN THE AFFECTED UNITS SECTION OF THIS BULLETIN. HONDA HAS DETERMINED THAT A DEFECT WITHIN CERTAIN STARTER RELAY SWITCH ASSEMBLIES CAN CAUSE AN INCREASE IN RESISTANCE AT THE MAIN FUSE, POTENTIALLY INTERRUPTING BATTERY VOLTAGE TO THE ELECTRICAL SYSTEM WHICH CAN CAUSE THE ENGINE TO A) NOT START OR B) STALL WHILE RIDING. IN AN EXTREME CASE, THE INCREASED RESISTANCE AT THE MAIN FUSE MAY CAUSE THE STARTER RELAY SWITCH TO CATCH ON FIRE."
DLR MSG - MC - E2017-05-19. Service bulletin. DEALER MESSAGE - HONDA IS EXPANDING SOME VIN RANGES WITHIN THE EXISTING SAFETY RECALL OF MULTIPLE MODELS (S/B MULTI-MODEL: STARTER RELAY SWITCH #1 REVISED: AUGUST 2015) ORIGINALLY LAUNCHED JULY 2015. HONDA HAS DETERMINED THERE MAY BE A DEFECT WITHIN THE STARTER RELAY SWITCH (STARTER MAGNETIC SWITCH) ASSEMBLY THAT CAN CAUSE AN INCREASE IN RESISTANCE ACROSS THE MAIN FUSE, POTENTIALLY INTERRUPTING BATTERY VOLTAGE TO THE ELECTRICAL SYSTEM. AN INTERRUPTION OF ELECTRICAL SYSTEM BATTERY VOLTAGE CAN CAUSE THE ENGINE TO A) NOT START OR B) STALL WHILE RIDING. IN AN EXTREME CASE, THE INCREASED RESISTANCE AT THE MAIN FUSE CAN CAUSE THE STARTER RELAY SWITCH TO CATCH ON FIRE. AN ENGINE THAT STALLS WHILE RIDING INCREASES THE RISK OF A CRASH.