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Service bulletins for the 2011 Kia Sorento

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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
SC291YZ_TSB_R12025-03-07. 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).
SC291YZ2025-02-04. 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_R12024-11-13. 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_R22022-09-17. 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_TSB2022-06-03. 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_R12021-12-01. 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.
PI2101_TSB_R12021-06-02. Service bulletin. ENGINE AND ENGINE COOLING. 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.
TSB_ENG222_R22021-03-24. 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_R12021-02-02. 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_TSB2021-02-02. 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_QA2021-02-02. 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.
PI2101_OWNR2021-02-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN - OWNER LETTER - This document is notice to the 2011 MY Sorento vehicle owners advising them of the Product Improvement Campaign on their vehicles.
PI2101_DSM2021-02-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE; EQUIPMENT. PRODUCT IMPROVEMENT CAMPAIGN - DEALER SERVICE MANAGER LETTER - This document is notice to the Dealer Service Managers advising them of the Product Improvement Campaign.
PI2101_DP2021-02-02. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. PRODUCT IMPROVEMENT CAMPAIGN - DEALER PRINCIPAL LETTER - This document is the notice to the dealer principals notifying them of the Product Improvement Campaign.
TSB_CHA084_R62020-12-02. Service bulletin. ENGINE AND ENGINE COOLING; STEERING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
TSB_CHA084_R52020-12-02. Service bulletin. STEERING; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
DOR-M9J4S-072020-07-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
DOR-M3J3F-072020-07-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no longer be sold as they do not meet CARB standards, but parts on vehicles are not effected.
TSBCHA084_R42019-12-09. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; STEERING. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information.This bulletin provides information regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU) or Steering Column Housing on some 2010MY~ Kia models listed on page 5 equipped with a Column Motor Driven Power Steering (C-MDPS) unit. Follow the MDPS Flowchart (page 2) along with the MDPS DTC Table (page 3) procedure outlined in this bulletin before replacing the C-MDPS Motor, ECU or Steering Column Housing.
DC_201808282018-10-09. Service bulletin. ELECTRICAL SYSTEM; ENGINE; EQUIPMENT. DEALER COMMUNICATION - RECENT KIA MEDIA REPORTS - Dear Kia Retailer, You and your customers may have seen recent media reports regarding thermal incidents in Kia vehicles or NHTSA?s announcement of the opening of a Defect Petition for fire cases involving the 2011-14 Sorentos and Optimas, and I want to update you on KMA?s response to this issue. All automobiles contain combustible materials and a vehicle fire may be a result of any number of complex factors which must be carefully evaluated by trained technicians to, if possible, determine its cause and, ultimately, determine if a defect trend exists. At Kia, customer safety is paramount and although both KMA and NHTSA have independently concluded that no defect trends exist, KMA has significantly increased its committed resources to ensure that all thermal incidents are fully evaluated.
PS5392018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned and transferred to the new engine.
TSB-ENG140R12017-08-02. Service bulletin. ENGINE. TSB: 3.5 L MPI - COLD ENGINE START-UP CHATTER - This bulletin provides information related to some 2011-2013MY Sorento (XMa) vehicles, equipped with the 3.5 L engine and produced from October 26, 2009 to July 14, 2012, which may exhibit a concern related to unusually loud engine chatter during initial start-up after sitting for several hours.
TT0382017-08-02. Service bulletin. EQUIPMENT; ENGINE. TECH TIP: Oil Leak in Rear Main Seal Area - Most oil leaks on this engine are found in the top of the engine, under the intake manifold. In some cases, oil may leak from the filter housings where they mate with the block, or from the oil pressure switch.
TSB-ENG139R12017-08-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. TSB: VCMA DIAGNOSIS - MIL ON WITH DTC P200A - This bulletin provides information for some 2011-2013MY Sorento (XMa) vehicles, equipped with a 3.5L MPI engine, which may exhibit a Malfunction Indicator Lamp (MIL) with DTC P200A,
SC106OWNER2017-08-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. OWNER NOTIFICATION LETTER: Dear Kia Sorento Owner: Kia Motors America, Inc. is conducting a Voluntary Service Campaign to reprogram the Engine Control Module in certain 2011-2013 model year Sorento vehicles.

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