# Service bulletin 19\-01\-034H

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: 10167771
- Published by NHTSA: 2019\-11\-18
- Manufacturer's number: 19\-01\-034H
- Manufacturer's date: 2019\-10\-29
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## NHTSA's summary

This bulletin provides information related to an ECM \(Engine Control Module\) software update to revise battery sensor data for optimized %SOC\(State of Charge\) value. The ECM Update also includes an update for misfire due to learning cylinder imbalance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10167771-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10167771-9999.pdf)

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

## Components

Electrical system, Engine, 12\-volt battery, Software

## Vehicles listed

- 2020 HYUNDAI VELOSTER

## Other bulletins for the same vehicles and component

- [22\-01\-043H](/bulletins/10213718.md), 2022-06-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE AND ENGINE COOLING. Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System \(CNDS\) software update. CNDS is to detect abnormal cylinder wall scuffing or noise of the engine block before potentially severe engine damage occurs. If abnormal noise is detected, the Malfunction Indicator Lamp \(MIL\) will blink continuously. In addition, DTC P1327 will be recorded in the ECM.

JSON: [/v1/bulletins/10167771](/v1/bulletins/10167771)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2019-01-034H&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10167771&vehicle=Service%20bulletin%2019-01-034H)