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Service bulletin TSB-078

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)
TypeService bulletin
NHTSA id10037347
Published by NHTSA2011-05-21
Manufacturer's numberTSB-078
Manufacturer's date2010-11-01
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

KIA: THERE IS A PROCEDURE TO RESET THE ELECTRONIC THROTTLE CONTROL VALUE. *RM

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Equipment and accessories

Vehicles listed
KIA FORTE2010
KIA OPTIMA2009, 2010
KIA RONDO2009, 2010
KIA SORENTO2009
KIA SPORTAGE2009, 2010

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

Recalls for the same vehicles and component
20210402021-02-01. 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
PI2102_OWNR_5012026-03-12. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2102 FLIGHT #501) - This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update on 2010-2011 MY Kia Forte and Forte Koup vehicles equipped with 2.4-liter MPI 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”).
PI2102_OWNR_4012025-07-09. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2102) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2010-2011 MY Kia Forte and Forte Koup vehicles equipped with 2.4-liter MPI 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”).
PI2102YZ_TSB_R12024-11-13. Service bulletin. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2102Y/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 (PI2102) titled “Knock Sensor Detection System - ECU Logic Improvement” for 2010-2011MY Forte and Forte Koup (TD)vehicles equipped with Theta 2.4L MPI engine, produced from February 24, 2009 through May 31, 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).
PI2102_OWNR_3012024-11-13. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2102) - This document is the owner renotification advising that Kia is conducting 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).
PI2102_OWNR_2012024-04-03. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2102) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2010-2011 MY Kia Forte & Forte Koup vehicles equipped with 2.4-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").
PI2102YZ_TSB2022-07-02. Service bulletin. SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2102Y/Z) - This bulletin provides information related to the Technical Service Bulletin previously published in (PI2102) titled "Knock Sensor Detection System - ECU Logic Improvement" for 2010-2011MY Forte and Forte Koup (TD) vehicles equipped with Theta 2.4L MPI engine, produced from February 24, 2009 through May 31, 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_ENG058_CLSD2021-06-02. Service bulletin. TSB_ENG058_CLOSED: TECHNICAL SERVICE BULLETIN CLOSED
TSB_ENG059_CLSD2021-06-02. Service bulletin. TSB_ENG059_CLOSED: TECHNICAL SERVICE BULLETIN CLOSED
TSB_ENG051R1_CLS2021-06-02. Service bulletin. TSB_ENG051_R1_CLOSED: TECHNICAL SERVICE BULLETIN CLOSED
TSB_BOD049_CLSD2021-06-02. Service bulletin. TSB_BOD049_CLOSED: TECHNICAL SERVICE BULLETIN CLOSED