# Service bulletin A20\-001

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: 10171184
- Published by NHTSA: 2020\-02\-11
- Manufacturer's number: A20\-001
- Manufacturer's date: 2020\-02\-07
- NHTSA component: SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

## NHTSA's summary

Service Bulletin \- The brake tandem motor cylinder on certain vehicles may only operate in failsafe mode if saltwater \(in areas where road salt is used\) enters the brake tandem motor cylinder and corrodes its metal components. The saltwater is able to enter the motor due to small gaps in the motor cover that result from issues in the manufacturing process. If the brake tandem motor cylinder enters into failsafe mode, instrument panel indicators will come on to alert the driver and there will be an increase in brake pedal travel during braking.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171184-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171184-9999.pdf)

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

## Components

Brakes, Brake master cylinder

## Vehicles listed

- 2017 HONDA ACCORD HYBRID

JSON: [/v1/bulletins/10171184](/v1/bulletins/10171184)

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