# Service bulletins for the 2020 Honda Grom

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.

10 bulletins from NHTSA, as of 2026-10-19.

- [Grom125 \#3 \- August 2026](/bulletins/11036334.md), 2026-08-24, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [MCPSC08202026903](/bulletins/11036330.md), 2026-08-24, Other: FUEL/PROPULSION SYSTEM. Dealer Message \- The full service bulletin and parts availability for the Emissions Recall relating to 2020\-2026 Grom 125 FUEL SYSTEM \(GROM 125 \#3\) have been delayed until April 2027. Dealers will be notified again by iN message once the bulletin and parts become available.
- [ONLKS704292026](/bulletins/11032369.md), 2026-05-06, Emissions: FUEL/PROPULSION SYSTEM. "Owner Notification Letter \- American Honda Motor, Inc. is conducting a voluntary recall for ALL 2020 \- 2026 MSX125 Grom motorcycles. Our records indicate that you may own one of these motorcycles. This notice is sent to you in accordance with the Environmental Protection Agency regulations."
- [Grom125 \#3\-February 2028](/bulletins/11029289.md), 2026-03-03, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [GROM125 \#3 \- October 2025](/bulletins/11024261.md), 2025-10-14, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [MCPSC10062025902](/bulletins/11024258.md), 2025-10-14, Other: FUEL/PROPULSION SYSTEM. Dealer Message \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [GROM 125 \- August 2025](/bulletins/11021963.md), 2025-08-18, Service bulletin: FUEL/PROPULSION SYSTEM. Service Bulletin \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [MCPSC08072025902](/bulletins/11021962.md), 2025-08-18, Other: FUEL/PROPULSION SYSTEM. Dealer Message \- A fuel permeation test revealed that the fuel system does not meet regulatory standards. The fuel system has a lower than expected permeation value and is not within emission certification compliance.
- [AMV200502](/bulletins/10175299.md), 2020-05-19, Service bulletin: EQUIPMENT. Video Message \- It concerns how to replace a leaky front rocker arm oil control valve. Due to a deteriorated lower gasket or an out\-of\-spec gasket groove, the front rocker arm oil control valve can leak in certain V6 models with variable cylinder management. To fix this issue service bulletin A20\-023 was posted. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
- [AMV200501](/bulletins/10175298.md), 2020-05-19, Service bulletin: EQUIPMENT. Video Message \- It concerns how to replace a leaky front rocker arm oil control valve. Due to a deteriorated lower gasket or an out\-of\-spec gasket groove, the front rocker arm oil control valve can leak in certain V6 models with variable cylinder management. To fix this issue service bulletin A20\-023 was posted. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.

JSON: [/v1/vehicles/2020_honda_grom/bulletins](/v1/vehicles/2020_honda_grom/bulletins)

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