# Service bulletin PI2101\_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.

- Type: Service bulletin
- NHTSA id: 10194674
- Published by NHTSA: 2021\-06\-02
- Manufacturer's number: PI2101\_TSB\_R1
- Manufacturer's date: 2021\-05\-28
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

TECHNICAL SERVICE BULLETIN \- PRODUCT IMPROVEMENT CAMPAIGN PI2101 \- THETA 2.4L MPI \- KNOCK SENSOR DETECTION SYSTEM \(KSDS\) ECU LOGIC IMPROVEMENT \(PI2101\) \- 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 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194674-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194674-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2011 KIA SORENTO

## Recalls for the same vehicles and component

- [2023695](/recalls/tc/2023695.md), 2023-12-22: Engine
- [23V877000](/recalls/nhtsa/23V877000.md), 2023-12-21: ENGINE
- [2021040](/recalls/tc/2021040.md), 2021-02-01: Engine

## Other bulletins for the same vehicles and component

- [SC291YZ\_TSB\_R1](/bulletins/11015268.md), 2025-03-07, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 \(SC291YZ\) \- 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 in \(SC291\) titled “Engine Inspection/Replacement and KSDS Software Installation” for 2011MY Sorento \(XMa\) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. 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 \(Knock Signal Range/Performance\).
- [SC291YZ](/bulletins/11013573.md), 2025-02-04, Service bulletin: ENGINE. 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 \(Knock Signal Range/Performance\).
- [PI2101YZ\_TSB\_R1](/bulletins/11010508.md), 2024-11-13, Service bulletin: ENGINE. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 \(PI2101Y/Z\) \- 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 in \(PI2101\) titled “Knock Sensor Detection System \- ECU Logic Improvement” for 2011MY Sorento \(XMa\) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. 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 \(Knock Signal Range/Performance\).
- [TSB\_SST067\_R2](/bulletins/10219692.md), 2022-09-17, Service bulletin: ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: BEARING CLEARANCE TESTER \(BCT\) PROCEDURES \- This bulletin provides information regarding test procedure of the Bearing Clearance Tester \(BCT\) Special Service Tool \(SST\). The SST comes pre\-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re\-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
- [PI2101YZ\_TSB](/bulletins/10212202.md), 2022-06-03, Service bulletin: ENGINE AND ENGINE COOLING. SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 \(PI2101Y/Z\) \- This bulletin provides information related to the Technical Service Bulletin previously published in \(PI2101\) titled "Knock Sensor Detection System \- ECU Logic Improvement" for 2011MY Sorento \(XMa\) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. 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 \(Knock Signal Range/Performance\).
- [TSB\_SST067\_R1](/bulletins/10203695.md), 2021-12-01, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information regarding test procedure of the Bearing Clearance Tester \(BCT\) Special Service Tool \(SST\). The SST comes pre\-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re\-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
- [TSB\_ENG222\_R2](/bulletins/10189272.md), 2021-03-24, Service bulletin: ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA 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\-2019MY vehicles \(refer to table below for applicable model and engine\), which may exhibit a symptom of excessive oil consumption.
- [TSB\_ENG222\_R1](/bulletins/10186041.md), 2021-02-02, Service bulletin: ENGINE AND ENGINE COOLING; EQUIPMENT. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA 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\-2019MY vehicles \(refer to table below for applicable model and engine\), which may exhibit a symptom of excessive oil consumption.
- [PI2101\_TSB](/bulletins/10186035.md), 2021-02-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\):SOFTWARE. TECHNICAL SERVICE BULLETIN \- PRODUCT IMPROVEMENT CAMPAIGN PI2101 \- THETA 2.4L MPI \- KNOCK SENSOR DETECTION SYSTEM \(KSDS\) ECU LOGIC IMPROVEMENT \(PI2101\) \- 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.
- [PI2101\_QA](/bulletins/10186034.md), 2021-02-02, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. PRODUCT IMPROVEMENT CAMPAIGN \- This document is the Question and Answer Guide containing the most frequently asked questions on a campaign.

JSON: [/v1/bulletins/10194674](/v1/bulletins/10194674)

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