WenmarOpen by Wenmar Pro

Service bulletins for the 2011 Kia Forte

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PI2102_OWNR_5012026-03-12. Other. ENGINE; ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM; ENGINE. 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. ENGINE. 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. ENGINE. 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. ENGINE AND ENGINE COOLING. 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. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. 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).
PI2102_TSB2021-05-01. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: THETA 2.4L MPI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2102) - 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.
PI2102_OWNR2021-05-01. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification 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") (PI2102).
PI2102_DSM2021-05-01. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage on 2010-2011 MY Forte and Forte Koup vehicles equipped with 2.4-liter engines, manufactured from February 24, 2009 through May 31, 2011 (PI2102).
PI2102_DP2021-05-01. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage on 2010-2011 MY Forte and Forte Koup vehicles equipped with 2.4-liter engines, manufactured from February 24, 2009 through May 31, 2011 (PI2102).
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.
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.
PS067_R12018-11-13. Service bulletin. ENGINE; EQUIPMENT. PITSTOP: CYLINDER HEAD STEEL BALL INSPECTION AND INSTALLATION - This Pitstop provides information regarding the inspection and installation of the steel sealing ball on: * 3.3L & 3.8L Lambda engines for 2007-2008MY Sorento (BL), * 2.0L Nu engines for 2010-2019MY Soul (AM, PS), and * 1.8L & 2.0L Nu engines for 2010-2018MY Forte (TD, YD/YDm), 2019MY~ Forte (BDm). When replacing the cylinder heads on these engines, inspect the lubrication ports for installation of the steel sealing balls. Current replacement cylinder heads may not be equipped with the required steel balls. Identify and locate the nine (9) lubricant passages on 3.3L and 3.8L engines and three (3) on 1.8L and 2.0L engines and verify a steel ball is installed in each.
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.
PS4692017-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. PITSTOP: MANUAL EVAPORATIVE EMISSIONS TEST FOR HARD TO FIND/SMALL LEAKS - If the malfunction indicator lamp (MIL) is illuminated with DTC(s) P0442, P0455, P0456, or P0457 (Evaporative Emissions System-Leak detected) and the evaporative (EVAP) leak self-test resulted in NTF, a manual EVAP test is recommended.
PS2672017-02-07. Service bulletin. ENGINE; EQUIPMENT ADAPTIVE/MOBILITY. PITSTOP: THERMOSTAT RE-INSTALLATION PROCEDURE - REPEAT REPAIR (DTC P0128) - WHEN DIAGNOSING A FORTE RETURNING WITH A REPEAT DTC P0128 AFTER REPLACEMENT OF THE THERMOSTAT, REMOVE THE THERMOSTAT HOUSING TO VERIFY IF THE THERMOSTAT WAS INSTALLED INCORRECTLY DURING THE PREVIOUS REPAIR.
TSBSC1262017-01-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: ENGINE CONTROL MODULE SOFTWARE UPDATE (SC 126) - THIS BULLETIN PROVIDES INFORMATION RELATED TO UPDATING THE SOFTWARE PROGRAMMING (CALIBRATION) OF THE ENGINE CONTROL MODULE (ECM) ON SOME 2011MY OPTIMA (TF) VEHICLES EQUIPPED WITH A 2.4L ENGINE AND CALIFORNIA EMISSIONS, PRODUCED FROM OCTOBER 14, 2010 THROUGH SEPTEMBER 9, 2011, WHICH MAY HAVE ENGINE CALIBRATIONS THAT WERE NOT OPTIMIZED FOR EMISSIONS WHEN THE VEHICLE IS WARMING UP. THESE CALIBRATIONS MAY CAUSE THE VEHICLE TO RELEASE AIR POLLUTANTS WHICH EXCEED CALIFORNIA AIR RESOURCE BOARD (CARB) EMISSIONS REGULATIONS. TO CORRECT THIS CONDITION, KIA IS REQUESTING THE COMPLETION OF THIS VOLUNTARY EMISSIONS SERVICE CAMPAIGN ON ALL AFFECTED 2011MY OPTIMA (TF) VEHICLES. FOR CONFIRMATION THAT THE LATEST REFLASH HAS BEEN DONE TO A VEHICLE YOU ARE WORKING ON, VERIFY THE ROM ID USING THE TABLES IN THIS TSB.
TSBSC1292017-01-25. Service bulletin. ENGINE; EQUIPMENT. VOLUNTARY SAFETY RECALL CAMPAIGN: A/T FLUID COOLER HOSE REPLACEMENT (SC 129) - THIS BULLETIN PROVIDES THE PROCEDURE TO REPLACE THE A/T COOLER HOSES IN CERTAIN 2011 MY FORTE (TD) VEHICLES PRODUCED FROM AUGUST 27, 2010 THROUGH NOVEMBER 11, 2010. THE AUTOMATIC TRANSMISSION FLUID COOLER HOSES MAY HAVE BEEN IMPROPERLY CURED DURING THE MANUFACTURING PROCESS. THIS CONDITION MAY RESULT IN THE LOSS OF TRANSMISSION FLUID. IF SUFFICIENT FLUID IS LOST, THE LOSS OF HYDRAULIC PRESSURE TO THE TRANSAXLE COULD RESULT IN REDUCED VEHICLE MOBILITY. TO CORRECT THIS CONDITION FOLLOW THE PROCEDURE OUTLINED IN THIS BULLETIN.
PS2672016-03-16. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
1122012-04-18. Service bulletin. ENGINE AND ENGINE COOLING. KIA: VCM ACTUATOR REPLACEMENT AND ECM UPGRADE-TD/SL 2.0/2.4L MIL ON WITH DTC P200A. *KB
TSB-0832011-10-12. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE. KIA: FOR GDI HIGH PRESSURE FUEL SYSTEM, SPECIAL SERVICE INFORMATION AND SPECIFICATIONS ARE PROVIDED. *PE

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