WenmarOpen by Wenmar Pro

Service bulletins for the 2012 Kia Optima

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Labels and manuals are shown. Show all

Bulletins, newest first
PI2002YZ_TSB_R22021-10-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TECHNICAL SERVICE BULLETIN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2002Y/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 (PI2002A, PI2002B and SC200**1) titled "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).
SC208_POC2021-08-25. Service bulletin. EQUIPMENT:OTHER:LABELS; FUEL SYSTEM, GASOLINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SC208_POC: PROOF OF CORRECTION CARD
SC189_Label2020-08-04. Service bulletin. EQUIPMENT:OTHER:LABELS; ENGINE AND ENGINE COOLING. Voluntary Emissions Service Campaign (SC189) - Completion Label
PI1803WX_TSB_R52019-12-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. TSB: PRODUCT IMPROVEMENT CAMPAIGN PI1803W/X_R5: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803W/X) - This bulletin has been revised to include additional information. This bulletin provides information related to the Technical Service Bulletin previously published in November 2018 (PI1803, Rev 1, 01/02/2018) titled "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 returns to the dealer with Diagnostic Trouble Code ("DTC"), P1326.
DC_201810262018-11-13. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. DEALER COMMUNICATION - RECENT KIA MEDIA REPORTS, OCTOBER 26 2018 UPDATE - Dear Kia Retailer, We wrote to you in late August to provide you with an update regarding news reports regarding non-collision fires in Kia vehicles and NHTSA?s announcement of the opening of a Defect Petition for fire cases involving the 2011-14 Sorento and Optima vehicles. Since that time, we have been working cooperatively with NHTSA to analyze the safety performance of these and all Kia vehicles and added additional resources to quickly and effectively address any incidents. Recently, a non-profit consumer advocacy group called the Center for Automotive Safety (CAS) has asked for a recall of Kia vehicles for fire risk and members of the Senate Commerce Committee have asked Kia for additional information related to non-collision fires in Kia vehicles. These actions have generated additional media reports so we are providing you with additional information to assist you and your teams in addressing customer concerns.
WTY201709R52017-10-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. WTY - SC147 Claims Processing Procedures - REVISED - Authorization of Claims Processing for SC147 - See this bulletin for specific handling procedures regarding SC147.
TSB-TRA0552017-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: INHIBITOR SWITCH DIAGNOSIS INFORMATION - This bulletin gives information regarding the steps to take regarding the diagnosis of the Inhibitor Switch.
PS3032017-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. PIT STOP: HIGH VOLTAGE (HV) INSULATED GLOVES RE-CERTIFICATION - The purpose of this Pitstop is to remind dealer personnel about the importance of having the High Voltage (HV) insulated gloves, used by technicians to service hybrid electric vehicles, recertified on a six month or yearly basis.
WTY004OWNER2017-03-10. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. OWNER LETTER: WTY004 - DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICA TAKES PRIDE IN PROVIDING YOU WITH HIGH QUALITY AND DEPENDABLE VEHICLES. IN ORDER TO MAINTAIN THESE STANDARDS, KIA IS EXTENDING THE WARRANTY COVERAGE, TO ALL OWNERS, FOR THE ENGINE’S “SHORT BLOCK” ASSEMBLY ON 2011-2014 MODEL YEAR OPTIMA VEHICLES WITH 2.4L GDI OR 2.0L TURBO GDI TO 10 YEARS STARTING FROM THE DATE OF FIRST SERVICE OR 120,000 MILES, WHICHEVER OCCURS FIRST. THE SHORT BLOCK CONSISTS OF THE ENGINE BLOCK, CRANKSHAFT AND BEARINGS, CONNECTING RODS AND BEARINGS AND PISTONS. THIS WARRANTY EXTENSION ADDRESSES ISSUES WITH CONNECTING ROD WEAR WHICH RESULTS IN KNOCKING NOISE FROM THE ENGINE. THE KNOCKING NOISE INCREASES IN FREQUENCY AS THE ENGINE RPM INCREASES. IF THE VEHICLE CONTINUES TO BE DRIVEN WITH A WORN CONNECTING ROD BEARING, THE BEARING CAN FAIL AND MAY RESULT IN ENGINE FAILURE.
TSB-CHA-0602016-09-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE; STEERING: STEERING WHEEL/HANDLE BAR. TSB: ECM UPGRADE - STEERING LOGIC IMPROVEMENT - THIS BULLETIN PROVIDES INFORMATION RELATED TO THE MDPS ECU SOFTWARE UPGRADE FOR SOME 2011 ~ 2014MY OPTIMA (TF/QF) VEHICLES, PRODUCED FROM JOB #1 THROUGH JULY 27, 2014, WHICH MAY EXPERIENCE A NOTCHY FEEL IN THE STEERING WHEEL. TO CORRECT THIS CONDITION, THE VEHICLE SHOULD BE EVALUATED USING THE MDPS EFFORT MEASUREMENT S/W, DETAILED IN THE ATTACHED REPAIR PROCEDURE, TO DETERMINE WHETHER AN IMPROVED STEERING LOGIC SHOULD BE INSTALLED IN THE MDPS ECU, OR IF AN MDPS COLUMN REPLACEMENT IS REQUIRED. TO DETERMINE WHETHER THE UPDATED MDPS ECU REFLASH APPLIES TO A VEHICLE YOU ARE WORKING ON, OR WHETHER IT HAS ALREADY BEEN PERFORMED, VERIFY ROM ID USING THE TABLES IN THIS TSB.
TT0172016-03-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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