# Service bulletin TSB\_ELE280

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: 10230488
- Published by NHTSA: 2023\-02\-02
- Manufacturer's number: TSB\_ELE280
- Manufacturer's date: 2023\-01\-05
- NHTSA component: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE \(BMS/BECM\):SOFTWARE; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

## NHTSA's summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: EV BATTERY COOLANT AIR BLEEDING PROCEDURE \(SA522\) \- This bulletin provides information to perform the "Battery EWP Operation Mode for Degassing and Circulation" \(battery coolant air bleeding procedure\) on the Battery Management System \(BMS\) for some 2023MY Niro EV \(SG2 EV\) vehicles produced from July 11, 2022 through November 20, 2022, which may have inadvertent air trapped inside of the coolant line due to BMS software logic error of the heater relay, which may generate an MIL 'ON' with DTC P1BA800 stored.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10230488-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10230488-9999.pdf)

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

## Components

Electrical system, Fuel system, Hybrid and electric drive, High\-voltage battery

## Trouble codes named

P1BA8

## Vehicles listed

- 2023 KIA NIRO EV

## Other bulletins for the same vehicles and component

- [TSB\_ELE280\_R1](/bulletins/10230886.md), 2023-02-02, Service bulletin: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN" SERVICE ACTION: EV BATTERY COOLANT AIR BLEEDING PROCEDURE \(SA522\) \- This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to perform the "Battery EWP Operation Mode for Degassing and Circulation" \(battery coolant air bleeding procedure\) on the Battery Management System \(BMS\) for some 2023MY Niro EV \(SG2 EV\) vehicles produced from July 11, 2022 through November 20, 2022, which may have inadvertent air trapped inside of the coolant line due to BMS software logic error of the heater relay, which may generate an MIL 'ON' with DTC P1BA800 stored.

JSON: [/v1/bulletins/10230488](/v1/bulletins/10230488)

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