# Service bulletin C125 \#1 \- February 2026

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.

- Type: Service bulletin
- NHTSA id: 11029286
- Published by NHTSA: 2026\-03\-03
- Manufacturer's number: C125 \#1 \- February 2026
- Manufacturer's date: 2026\-02\-26
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029286-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029286-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Vehicles listed

- 2019 to 2024 HONDA C125

JSON: [/v1/bulletins/11029286](/v1/bulletins/11029286)

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