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Service bulletins for the 2021 Kia Soul

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.

117 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
SC199_OWNR_SK3_32026-02-25. Emissions. ELECTRICAL SYSTEM; POWER TRAIN. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC199 FL301) - This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control Module (TCM) and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2020-2021 MY Soul vehicles.
TSB_TRA046_R52025-04-23. Service bulletin. POWER TRAIN. TECHNICAL 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.
TSB_TRA1132024-10-01. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: PRECAUTIONS FOR TRANSMISSIONS WITH ISG/EOP - This bulletin provides information related to the replacement or servicing of transmission assemblies on all Kia vehicles equipped with Idle-Stop-Go (ISG) and High-Flow Electric Oil Pump (HF EOP). The HF EOP protective connector cover may NOT have been installed on a new or remanufactured transmission during assembly. The HF EOP connector may become contaminated with debris during shipping and/or with oil/coolant during installation.
TSB_TRA1092024-07-18. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: IVT OIL PRESSURE SENSOR REPLACEMENT: This bulletin provides information to replace the Intelligent Variable Transmission (IVT) Oil Pressure Sensor (OPS) on some 2018-2024MY vehicles listed on page 3 equipped with IVT. The affected vehicles may exhibit a malfunction indicator lamp (MIL) illuminated on the instrument cluster with DTCs P084500, P084600, and/or P0867XX present with no drivability concerns due to a failed IVT oil pressure sensor.
TSB_TRA046_R42024-06-04. Service bulletin. POWER TRAIN. 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.
TSB_TRA102_R12023-07-05. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT - This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) assembly on certain 2019-2021MY model vehicles listed in the chart below, which may exhibit an MIL ON with the DTC(s) listed below and a lack/delay in acceleration due to transmission slippage.
SC199_TSB_R42023-07-05. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). VOLUNTARY EMISSIONS SERVICE CAMPAIGN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SC199) - 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 was previously referred as ‘SA424’ or ‘ELE 200’.) This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles listed in the chart below. The affected vehicles may exhibit the illumination of MIL with the DTC(s) listed below in addition to a lack of acceleration or delay in accelerating due to transmission slippage.
TSB_TRA046_R32022-12-06. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - 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, refer to applicable vehicles in the chart starting on page 2.
SC199_TSB_R32022-08-20. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SC199) - 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 was previously referred as 'SA424' or 'ELE 200'.) This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles listed in the chart below. The affected vehicles may exhibit the illumination of MIL with the DTC(s) listed below in addition to a lack of acceleration or delay in accelerating due to transmission slippage.
SC199_TSB_R22022-08-03. Service bulletin. POWER TRAIN. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SC199) - 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 was previously referred as 'SA424' or 'ELE 200'.) This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles listed in the chart below. The affected vehicles may exhibit the illumination of MIL with the DTC(s) listed below in addition to a lack of acceleration or delay in accelerating due to transmission slippage.
TSB_TRA1022022-05-04. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT - This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) assembly on certain 2019-2021MY model vehicles listed in the chart below, which may exhibit an MIL ON with the DTC(s) listed below and a lack/delay in acceleration due to transmission slippage. To correct this concern, if necessary, apply the improved software logic to the CVT system using the KDS ECU Upgrade function as described in this bulletin and replace the IVT assembly.
SC199_TSB_R12021-12-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SC199) - 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 was previously referred to as SA424 or ELE 200.) This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles listed in the chart below. The affected vehicles may exhibit the illumination of MIL with the DTC(s) listed below in addition to a lack of acceleration or delay in accelerating due to transmission slippage.
SC199_OWNR_SK3_22021-06-25. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. SC199 - Owner Letter - Soul: Second notification to Soul vehicle owners advising them of a Voluntary Emissions Service Campaign to improve the Transmission Control Module (TCM) logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on some 2020-2021 Soul vehicles.
SC199_TSB2021-01-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. SC199_TSB: VOLUNTARY EMMISSIONS SERVICE CAMPAIGN - IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SC199) - (This bulletin was previously referred as 'SA424' or 'ELE 200'.) This bulletin provides the procedure to update the Transmission Control Module (TCM) software logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on certain 2019-2021MY vehicles listed in the chart below. The affected vehicles may exhibit the illumination of MIL with the DTC(s) listed below in addition to a lack of acceleration or delay in accelerating due to transmission slippage.
SC199_STCKR2021-01-06. Service bulletin. POWER TRAIN; EQUIPMENT:OTHER:LABELS. SC199_STCKR - Completion Sticker
SC199_POC2021-01-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; POWER TRAIN. SC199_POC - Proof of Completion Card
SC199_OWNR_SK32021-01-06. Service bulletin. POWER TRAIN; EQUIPMENT. SC199 - Owner Letter to Soul vehicle owners advising them of a Voluntary Emissions Service Campaign to improve the Transmission Control Module (TCM) logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on some 2020-2021 Soul vehicles.
SC199_QA2021-01-06. Service bulletin. EQUIPMENT; POWER TRAIN. SC199 - Questions and Answers: Frequently Asked Questions regarding the Voluntary Emissions Service Campaign to improve the Transmission Control Module (TCM) logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on some 2019-2020 Forte; 2020-2021 Soul, and 2021 Seltos vehicles.
SC199_DPSM2021-01-06. Service bulletin. EQUIPMENT; ENGINE; POWER TRAIN. SC199 - Dealer Parts and Service Manager Notice: Notification to Dealer Parts and Service Managers advising them of a Voluntary Emissions Service Campaign to improve the Transmission Control Module (TCM) logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on some 2019-2020 Forte; 2020-2021 Soul, and 2021 Seltos vehicles.
SC199_DP2021-01-06. Service bulletin. POWER TRAIN. SC199 - Dealer Principal Notice: Notification to Dealer Principals advising them of a Voluntary Emissions Service Campaign to improve the Transmission Control Module (TCM) logic and, if necessary, replace the Intelligent Variable Transmission (IVT) on some 2019-2020 Forte; 2020-2021 Soul, and 2021 Seltos vehicles.
TSB_ELE200_R32020-09-03. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; EQUIPMENT. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SA424) - 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 improve the Transmission Control Module (TCM) logic and if necessary, replace the Intelligent Variable Transmission (IVT) on 2019-2021MY vehicleswhich may exhibit a MIL with certain DTC(s).
TSB_ELE200_R12020-07-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SA424) - This bulletin has been revised to include additional information. This bulletin provides the procedure to improve the Transmission Control Module (TCM) logic and if necessary, replace the Intelligent Variable Transmission (IVT) on 2019-2021MY vehicles which may exhibit a MIL with the DTC(s) listed below. To correct this concern, apply the improved logic to the CVT system using the KDS ECU Upgrade function as described in this bulletin and/or replace the IVT assembly.
TSB_ELE2002020-07-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: SERVICE ACTION: IVT SOFTWARE LOGIC IMPROVEMENT AND/OR IVT REPLACEMENT (SA424) - This bulletin provides the procedure to improve the Transmission Control Module (TCM) logic and if necessary, replace the Intelligent Variable Transmission (IVT) on 2019-2021MY vehicles which may exhibit a MIL with the DTC(s) listed below. To correct this concern, apply the improved logic to the CVT system using the KDS ECU Upgrade function as described in this bulletin and/or replace the IVT assembly.
TSB_TRA046_R12020-05-05. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: - TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. 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, refer to applicable vehicles on page 2. Refer to the shop manual on KGIS for the specific Kia model for the correct transmission fluid check/fill procedures.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.