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P1BA8 on the 2023 Kia Niro

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name P1BA8
TSB_ELE280_R12023-02-02. Service bulletin. 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.
TSB_ELE2802023-02-02. Service bulletin. 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.

2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.