# Service bulletin TSB\_ENG224

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: 10186042
- Published by NHTSA: 2021\-02\-02
- Manufacturer's number: TSB\_ENG224
- Manufacturer's date: 2021\-01\-12
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT

## NHTSA's summary

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: ACTIVE AIR FLAP \(AAF\) MIL ON JUDGMENT LOGIC IMPROVEMENT \(SA459\) \- This bulletin provides the procedure to improve the logic of the Active Air Flap \(AAF\) on some 2020MY Niro \(DE P/HEV\) vehicles produced from November 1, 2019 through November 30, 2020, which may exhibit a MIL ON with DTC\(s\) P059F and/or P05B2.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186042-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186042-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Trouble codes named

P059F, P05B2

## Vehicles listed

- 2020 KIA NIRO
- 2020 KIA NIRO PHEV

## Other bulletins for the same vehicles and component

- [TSB\_ENG222\_R8](/bulletins/11017109.md), 2025-04-18, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES \- 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 on diagnosing and/or repairing some 2011\-2024MY vehicles \(refer to the table on pages 9 and 10 for applicable models and engine\), which may exhibit a symptom of excessive oil consumption.
- [TSB\_ENG222\_R7](/bulletins/11014912.md), 2025-03-04, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES \- 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 on diagnosing and/or repairing some 2011\-2024MY vehicles \(refer to the tables on pages 8\-9 for applicable models and engine\), which may exhibit a symptom of excessive oil consumption.
- [TSB\_ELE320](/bulletins/10247556.md), 2024-01-06, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE SCREEN FREEZING OR MAP DELAY WITH WIRED APPLE CARPLAY \- This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020\-2023MY Kia vehicles to remedy an inaccurate map location, freezing AVN screen, or experiencing a delay when using Google Maps or Waze through wired Apple CarPlay.
- [TSB\_ELE270\_R2](/bulletins/10244290.md), 2023-11-03, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INVERTER COOLANT/DEBRIS FLUSHING/REPLACEMENT FOR CLUSTER MESSAGE "REFILL INVERTER COOLANT" \(SA512\) \- 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 flush out the inverter low\-conductivity coolant \(BSC\-1\) on certain 2019\-2022MY Niro EV \(DE EV\) vehicles produced from May 10, 2019 through October 4, 2021, which may exhibit a "Refill inverter coolant" message displayed on the instrument cluster due to poor flow of coolant/antifreeze inside the coolant pipes. In most cases, the inverter reservoir tank coolant may be filled to normal level and no DTC's are stored due to an increase operation of the electric water pump \(EWP\) that is 2,450 RPMs or more when checked.
- [TSB\_ELE303\_R1](/bulletins/10242982.md), 2023-10-01, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020\-2024MY Kia vehicles \(refer to model list on page 3\) to remedy a 'non\-responsive' or 'inoperative' radio \(FM, AM, SXM, etc. \) concern. The affected AVN unit on the vehicles may not respond when pressing the 'RADIO' hard key/button on the AVN unit or when selecting the 'RADIO' icon on the AVN menu screen.
- [TSB\_ELE303](/bulletins/10241848.md), 2023-09-06, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. TECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON\-RESPONSIVE RADIO ICON \(AM, FM, SXM\) \- This bulletin provides information to update the software on 5th Generation AVN wide on certain 2020\-2023MY Kia vehicles to remedy a \&\#39;non\-responsive\&\#39; or \&\#39;inoperative\&\#39; radio \(FM, AM, SXM, etc.\) concern. The affected AVN unit on the vehicles may not respond when pressing the \&\#39;RADIO\&\#39; hard key/button on the AVN unit or when selecting the \&\#39;RADIO\&\#39; icon on the AVN menu screen. Follow the procedure outlined in this publication to update the software on 5th Generation AVN wide units using the applicable USB Flash Drive A or B for the applicable vehicle.
- [TSB\_ELE270\_R1](/bulletins/10238226.md), 2023-07-01, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INVERTER COOLANT/DEBRIS FLUSHING/REPLACEMENT FOR CLUSTER MESSAGE \&\#39;REFILL INVERTER COOLANT\&\#39; \(SA512\) \- 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 flush out the inverter low\-conductivity coolant \(BSC\-1\) on certain 2019\-2022MY Niro EV \(DE EV\) vehicles produced from May 10, 2019 through October 4, 2021, which may exhibit a \&\#39;Refill inverter coolant\&\#39; message displayed on the instrument cluster due to poor flow of coolant/antifreeze inside the coolant pipes. In most cases, the inverter reservoir tank coolant may be filled to normal level and no DTC\&\#39;s are stored due to an increase operation of the electric water pump \(EWP\) that is 2,450 RPMs or more when checked.
- [TSB\_ELE270](/bulletins/10235407.md), 2023-05-04, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: INVERTER COOLANT/DEBRIS FLUSHING/REPLACEMENT FOR CLUSTER MESSAGE \&\#34;REFILL INVERTER COOLANT\&\#34; \(SA512\) \- This bulletin provides information to flush out the inverter low\-conductivity coolant on certain 2019\-2022MY Niro EV \(DE EV\) vehicles produced from May 10, 2019 through October 4, 2021, which may exhibit a \&\#34;Refill inverter coolant\&\#34; message displayed on the instrument cluster due to poor flow of coolant/antifreeze inside the coolant pipes. In most cases, the inverter reservoir tank coolant may be filled to normal level and no DTC\&\#39;s are stored due to an increase operation of the electric water pump \(EWP\) that is 2,450 RPMs or more when checked.
- [TSB\_ENG219\_R1](/bulletins/10220346.md), 2022-09-30, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE \- 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 on setting the "Service Interval Reminder" feature available on most 2014\-2023MY Kia vehicles \(refer to model list on page 2\). If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance. Refer to TSB ENG241 for 2023MY\~ vehicles equipped with the Oil Life Management System \(OLMS\) feature not included in table on page 2.
- [PS730](/bulletins/10212200.md), 2022-06-03, Service bulletin: ENGINE AND ENGINE COOLING. PITSTOP: RANDOM MISFIRES/OVERHEATING DUE TO LOW COOLANT \- This Pitstop provides information to help identify one cause of low coolant, random misfires, and/or possible overheating on some 2017\-2022MY Niro HEV \(DE HEV\) and 2018\-2022MY Niro PHEV \(DE PHEV\) vehicles. The cause may be a small coolant leak in the EGR Cooler. Locating this leak may be difficult.

JSON: [/v1/bulletins/10186042](/v1/bulletins/10186042)

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