Service bulletin PI2107YZ_TSB_R1

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	11010516
Published by NHTSA	2024-11-14
Manufacturer's number	PI2107YZ_TSB_R1
Manufacturer's date	2024-11-08
Campaign id or software version	PI2107Y/Z
NHTSA component	ENGINE
Manufacturer's system	Subsequent Repair Action

NHTSA's summary

TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2107Y/Z) - 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 related to the Technical Service Bulletin previously published (PI2107) titled “Nu 2.0L GDI - Knock Sensor Detection System ECU Logic Improvement”. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P1326

Vehicles listed
KIA SOUL	2017, 2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
2021733	2021-12-07. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PI2107_OWNR_501	2026-05-01. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107 Flight 501) - This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update on 2017-2019 MY Kia Soul vehicles equipped with 2.0-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
PI2107_OWNR_401	2025-08-13. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107) - This document is the owner renotification advising that Kia is conducting a important Product Improvement Campaign to perform a software update on 2017-2019 MY Kia Soul vehicles equipped with 2.0-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”)
TSB_ENG222_R8	2025-04-18. Service bulletin. 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	2025-03-04. Service bulletin. 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.
PI2107_OWNR_301	2024-12-11. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107) - This document is the owner renotification advising that Kia conducting Product Improvement Campaign to perform a software update on 2017-2019 MY Kia Soul vehicles equipped with 2.0-liter Nu GDI engines to protect the engine from excessive connecting rod bearing damage.
PI2107_OWNR_201	2024-05-06. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2017-2019 MY Kia Soul vehicles equipped with 2.0-liter engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit ("ECU").
SC251_TSB_R1	2023-10-01. Service bulletin. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: NU 2.OL GDI SULEV ECU EMISSIONS LOGIC IMPROVEMENT (SC251) - 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 update the emissions-related logic of the Electronic Control Module (ECM) with an improved version on certain 2017-2019MY Soul (PS) vehicles equipped with the Nu 2.0L GDI SULEV engine, produced from July 29, 2016 through December 19, 2018. To ensure compliance with emissions regulations, apply the improved software update to the Engine system using the KDS ECU upgrade function as described in this bulletin.
PS739	2023-04-06. Service bulletin. PITSTOP: LOW OIL PRESSURE AT IDLE AFTER GAMMA 1.6L GDI SHORT BLOCK ENGINE REPLACEMENT - This bulletin provides information equipped with a Gamma 1.6L GDI regarding a 'low oil pressure' concern during engine idle on vehicles engine due to a missing dowel pin, after a short block engine replacement. An internal oil leakage will cause a decrease in oil pressure without the instal lation of the dowel pin location described in this bulletin. Confirm that the dowel pin was installed for an engine exhibiting a low oil pressure concern after a short block replacement.
PI2107_TSB_R2	2023-02-02. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: NU 2.0L GDI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2107) - 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. Do NOT install PI2107 KSDS ECU Logic Improvement on 20 17 20 19MY Soul (PS) w/Nu 2.0L GDI SULEV models. The KSDS will automatically be installed under SC251. Utilize Op Code 210149R1 for all SULEV models and proceed to SC251. All claims are subject to Warranty review and chargeback.This bulletin provides information related to a software update to the Engine Control Unit (ECU) to install the Knock Sensor Detection System (KSDS), in order to protect the engine from excessive connecting rod bearing damage. This update is for certain 2017-2019MY Soul (PS) vehicles equipped with Nu 2.0L GDI engines, produced from July 29, 2016 through December 21, 2018.
SC251_TSB	2023-02-02. Service bulletin. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: NU 2.OL GDI SULEV ECU EMISSIONS LOGIC IMPROVEMENT (SC251) - This bulletin provides the procedure to update the emissions-related logic of the Electronic Control Module (ECM) with an improved version on certain 2017-2019MY Soul (PS) vehicles equipped with the Nu 2.0L GDI SULEV engine, produced from July 29, 2016 through December 19, 2018. To ensure compliance with emissions regulations, apply the improved software update to the Engine system using the KDS ECU Upgrade function as described in this bulletin.