Kia Niro Service Bulletins (2021)
75 manufacturer communications on file.
- August 28, 2026•Document ID: 11036628Service Bulletin/Repair InstructionsVISIBILITY/WIPER; ELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_CLI049_R2
- Date Added:
- September 2, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - 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 regarding the partial repair of the Air Conditioning (A/C) compressor assembly on some 2011MY~ Optima Hybrid (TF HEV, JF HEV/PHEV), 2015MY~ Soul EV (PS EV), 2017MY~ Niro (DE HEV/PHEV/EV), 2022MY~ EV6 (CV), 2021MY~ Sorento (MQ4 HEV/PHEV), 2023MY~ Sportage (NQ5 HEV/PHEV), and 2023MY~ Niro (SG2 EV/HEV/PHEV) vehicles.
Associated Products (42)Associated Documents - July 8, 2026•Document ID: 11035089Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2603Y_TSB
- Date Added:
- July 18, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: BSA REPLACEMENT (PI2603Y) - This bulletin provides information related to the Technical Service Bulletin previously published under PI2603, titled “BMS Battery Diagnostic Logic Improvement.” If one or more of the Diagnostic Trouble Codes (DTCs) listed in the bulletin are present or stored after the Battery Management System (BMS) software upgrade has been performed per PI2603, follow the procedure outlined in this publication to replace the Battery System Assembly (BSA) on the applicable vehicle.
Associated Products (2)Associated Documents - June 17, 2026•Document ID: 11033932OtherFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2603_OWNR
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryPRODUCT IMPROVEMENT CAMPAIGN: OWNER NOTIFICATION (PI2603) - This document is the owner notification advising that Kia is conducting a Product Improvement Campaign to update the battery management system (BMS) software to enhance battery diagnostic performance in certain 2020-2022 MY Niro EV vehicles.
Associated Products (3)Associated Documents - June 15, 2026•Document ID: 11033931OtherELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM
- Mfr Comm. #:
- PI2603_QA
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryPRODUCT IMPROVEMENT CAMPAIGN: QUESTION AND ANSWER (PI2603) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Product Improvement Campaign PI2603.
Associated Products (3)Associated Documents - June 15, 2026•Document ID: 11033930OtherFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2603_DPSM
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryPRODUCT IMPROVEMENT CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (PI2603) - This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Product Improvement Campaign to update the battery management system (BMS) software to enhance battery diagnostic performance in certain 2020-2022 MY Niro EV vehicles manufactured from June 2, 2020 through November 8, 2021.
Associated Products (3)Associated Documents - June 15, 2026•Document ID: 11033929OtherFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2603_DP
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryPRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO (PI2603) - This document is the announcement to the dealer principals advising that Kia is conducting a Product Improvement Campaign to update the battery management system (BMS) software to enhance battery diagnostic performance in certain 2020-2022 MY Niro EV vehicles manufactured from June 2, 2020 through November 8, 2021.
Associated Products (3)Associated Documents - June 15, 2026•Document ID: 11033933Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- PI2603_TSB
- Date Added:
- June 17, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: BMS BATTERY DIAGNOSTIC LOGIC IMPROVEMENT (PI2603) - This bulletin provides information regarding a Battery Management System (BMS) software update for certain 2020–2022MY Niro (DE EV) vehicles produced from June 2, 2020, through November 8, 2021. Kia has developed improved battery health monitoring software to enhance the BMS diagnostic performance of the high-voltage battery (HVB) cells produced by a specific supplier in the subject vehicles. This improved software will enhance the long-term issue detection capabilities of the high-voltage battery in the subject vehicles.
Associated Products (3)Associated Documents - May 28, 2026•Document ID: 11033217Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE422
- Date Added:
- June 3, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updater available at update.kia.com. The software update may improve system performance, enhance existing features, and apply the latest operating software for supported vehicles (2021-2026MY All Models).
Associated Products (70)Associated Documents - April 14, 2026•Document ID: 11031906Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE417
- Date Added:
- May 1, 2026
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing USB for installation on applicable Kia vehicles. The software downloads and USB preparation process is similar across all supported platforms; however, in‑vehicle installation procedures vary by head unit type.
Associated Products (45)Associated Documents - December 9, 2025•Document ID: 11026698OtherBACK OVER PREVENTION: WARNINGS
- Mfr Comm. #:
- PS797
- Date Added:
- December 18, 2025
- Manufacturer:
- KIA
SummaryPITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking, by calculating distance based on the difference in signal transmission and reception times between the vehicle (ultrasonic sensor) and an object. The membrane film of the ultrasonic sensor is used for object detention and can be damaged by stone chips or foreign substances while driving. Damage to the cover of the ultrasonic sensor can also lead to damage to the internal circuit. As a result of this external damage, the PDW system may not receive the proper signal from the ultrasonic sensor. In some cases, the system may cause a false alarm, no alert, or phantom warnings by a “Warning Lamp’ to be displayed on the cluster. The ultrasonic sensor membrane film should be always inspected for external damage and if any part replacement should be treated as a general repair, not as a warranty claim repair for this concern. (Please note that this Pitstop only applies to models/trims that are equipped with the ultrasonic sensors.)
Associated Products (157)Associated Documents - August 21, 2025•Document ID: 11022350Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- SC321_OWNR_201
- Date Added:
- September 2, 2025
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC321) - This document is the owner renotification advising that Kia is conducting a Voluntary Service Campaign to address a potential corrosion concern with the Integrated Electronic Brake (IEB) in certain 2019-2022 MY Niro EV vehicles that were originally sold in or are currently registered in one of the 28 states with high road salt usage.
Associated Products (4)Associated Documents - April 17, 2025•Document ID: 11017172Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- TSB_TRA046_R5
- Date Added:
- April 23, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - 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 relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, and the transmission oil cooler is transferred to the new transmission.
Associated Products (165)Associated Documents - March 20, 2025•Document ID: 11015973Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE378
- Date Added:
- March 26, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.
Associated Products (68)Associated Documents - March 3, 2025•Document ID: 11015367Service Bulletin/Repair InstructionsFUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE270_R3
- Date Added:
- March 8, 2025
- Manufacturer:
- KIA
SummaryTECHNICAL 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.
Associated Products (4)Associated Documents - December 19, 2024•Document ID: 11012029Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE347_R1
- Date Added:
- December 20, 2024
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: DISPLAY AUDIO 2.0V/AVN5W SOFTWARE UPDATE - 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 update the software on Display Audio 2.0 (D2V) and AVN 5.0 Wide (AVN5W) head units on certain 2021-2023MY Kia vehicles (refer to pages 5 and 16). The affected vehicles may experience Apple CarPlay®/Android Auto™ phone projection connectivity-related concerns.
Associated Products (21)Associated Documents - December 5, 2024•Document ID: 11011765Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE361
- Date Added:
- December 11, 2024
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE DEALER MODE FACTORY RESET - This bulletin provides the procedure to perform the ‘Dealer Mode Factory Reset’ on multiple 2020-2021MY vehicles (listed on page 5) equipped with AVN 5.0 Wide head units. The affected vehicles may exhibit inoperable and/or interrupted Kia Connect services due to a logic error with the current software version. This logic error may affect the Kia Connect services: calendar, weather, sports, vehicle diagnostics, maintenance and/or Kia Connect services rendering these features inoperable.
Associated Products (12)Associated Documents - November 15, 2024•Document ID: 11010698Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- TSB_ELE303_R3
- Date Added:
- November 20, 2024
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: AVN 5.0 WIDE NON-RESPONSIVE RADIO ICON (AM, FM, SXM) - 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 update the software on 5th Generation AVN wide on certain 2020-2024MY Kia vehicles (refer to model list on page 8) 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.
Associated Products (28)Associated Documents - September 27, 2024•Document ID: 11008143Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- SC321_TSB_R1
- Date Added:
- September 30, 2024
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: IEB INSPECTION AND WATER PROOFING OR IEB REPLACEMENT (SC321) - 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 the procedure to inspect the Integrated Electronic Booster (IEB) on certain 2019-2022MY Niro EV (DE EV) vehicles produced from December 5, 2018 through April 12, 2022, that were originally sold or are currently registered in one of the 28 states where heavy amounts of road salt are used. Over time, saltwater inflow into the Integrated IEB at the IEB fastening bolt hole may cause corrosion and lead to an inoperable IEB motor. Should this occur, the vehicle may experience illumination of the Anti-lock Brake System (ABS), Forward Collision-Avoidance Assist (FCA) warning lights, and/or a firmer brake pedal feel. The brakes remain operational. Kia is conducting this service campaign to improve corrosion resistance of the IEB assembly.
Associated Products (4)Associated Documents - September 20, 2024•Document ID: 11007894Service CampaignSERVICE BRAKES
- Mfr Comm. #:
- SC321_OWNR
- Date Added:
- September 18, 2024
- Manufacturer:
- KIA
SummaryVOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC321) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to address a potential corrosion concern with the Integrated Electronic Brake (IEB) in certain 2019-2022 MY Niro EV vehicles that were originally sold in or are currently registered in one of the 28 states with high road salt usage.
Associated Products (4)Associated Documents - September 18, 2024•Document ID: 11008033Service Bulletin/Repair InstructionsSERVICE BRAKES
- Mfr Comm. #:
- SC321_TSB
- Date Added:
- September 25, 2024
- Manufacturer:
- KIA
SummaryTECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: IEB INSPECTION AND WATER PROOFING OR IEB REPLACEMENT (SC321) - This bulletin provides the procedure to inspect the Integrated Electronic Booster (IEB) on certain 2019-2022MY Niro EV (DE EV) vehicles produced from December 5, 2018 through April 12, 2022, that were originally sold orare currently registered in one of the 28 states where heavy amounts of road salt are used. Over time, saltwater inflow into the Integrated IEB at the IEB fastening bolt hole may cause corrosion and lead to an inoperable IEB motor. Should this occur, the vehicle may experience illumination of the Anti-lock Brake System (ABS), Forward Collision-Avoidance Assist (FCA) warning lights, and/or a firmer brake pedal feel. The brakes remain operational. Kia is conducting this service campaign to improve corrosion resistance of the IEB assembly.
Associated Products (4)Associated Documents