# Service bulletin 21\-BR\-004H

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: 10191793
- Published by NHTSA: 2021\-05\-05
- Manufacturer's number: 21\-BR\-004H
- Manufacturer's date: 2021\-04\-09
- NHTSA component: PARKING BRAKE

## NHTSA's summary

This bulletin describes the procedure to update the EPB \(Electronic Parking Brake\) ECU to revise the logic of setting DTC C2416, “Motor Short or Open – LH \(EPB\)” or C2417 “Motor Short or Open – RH \(EPB\)” from vibrations while driving on certain roads.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191793-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191793-9999.pdf)

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

## Components

Brakes, Parking brake

## Trouble codes named

C2416, C2417

## Vehicles listed

- 2019 to 2020 HYUNDAI IONIQ HYBRID
- 2019 to 2020 HYUNDAI IONIQ PLUG\-IN HYBRID

## Other bulletins for the same vehicles and component

- [23\-BR\-001H](/bulletins/10235346.md), 2023-05-02, Service bulletin: PARKING BRAKE. When servicing any of the specified vehicles below with the corresponding DTCs, C2416, “Motor Short or Open – LH \(EPB\)” or C2417 “Motor Short or Open – RH \(EPB\)”, follow the step\-by\-step procedures in this bulletin.

JSON: [/v1/bulletins/10191793](/v1/bulletins/10191793)

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