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Service bulletins for the 2005 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.

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

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Bulletins, newest first
TSB_BOD055_R12021-10-02. Service bulletin. STRUCTURE; EXTERIOR LIGHTING. TECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - 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 relating to some Kia models that may exhibit fogging, condensation, and/or moisture inside a headlamp assembly. Generally, a fogging condition is considered normal and can be eliminated by turning on the headlamps with the engine running for up to 30 minutes or during normal driving conditions. Headlamp assembly replacement WILL NOT be necessary in most cases.
PS4432020-12-03. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. TSB - USE OF AFTERMARKET USB CHARGING CABLES IN USB/12V PORTS - This article provides information regarding the use of USB ports and 12V power outlets to connect/charge mobile phones. Customers may experience issues with their head units that may be related to the use of aftermarket USB charging cables, including; * Electrical interference and limited or no functionality when attempting to play music, or when charging a device through the USB port * Excessive static or noise when listening to the audio source * Malfunctions and screen freeze of the head unit screen * Slow down of the system response while device is plugged in * Music will not play from iPhone 5 or 6 with Kia iPod cable and aftermarket adapter * No or limited functionality when trying to play music from an Apple device
TSB_TRA046_R12020-05-05. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: - TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles on page 2. Refer to the shop manual on KGIS for the specific Kia model for the correct transmission fluid check/fill procedures.
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-GEN085R12017-08-02. Service bulletin. EQUIPMENT:MECHANICAL; EQUIPMENT ADAPTIVE/MOBILITY. TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners, which are designed to lock into place once fully attached, are utilized in various Kia models and are strictly intended for ?one time use.? Some examples are: axle shaft nuts with stake collar, cotter pins, washers with locking tabs and other similar hardware, including threaded fasteners with pre-applied ?thread-locking adhesives.? It is critical for technicians to be aware that ALL such locking fasteners, regardless of type, are for ?one time use? only.
TSB-GEN0852017-08-02. Service bulletin. LATCHES/LOCKS/LINKAGES; EQUIPMENT ADAPTIVE/MOBILITY. TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners utilized in various Kia models are strictly intended for ?one time use?. Though not limited to the following, some examples are: axle shaft nuts with stake collar, cotter pins, washers with locking tabs and other similar hardware, including threaded fasteners with pre-applied ?thread-locking adhesives.?
TSBTRA0462017-02-14. Service bulletin. POWER TRAIN. TSB: AUTOMATIC TRANSMISSION FLUID APPLICATION GUIDE - THIS BULLETIN PROVIDES INFORMATION RELATING TO THE CORRECT AUTOMATIC TRANSMISSION FLUIDS THAT ARE REQUIRED FOR EACH KIA MODEL. REFER TO THE SHOP MANUAL ON KGIS FOR THE SPECIFIC KIA MODEL, THEN REFERENCE THE AUTOMATIC TRANSAXLE SYSTEM/ REPAIR PROCEDURES/ INSPECTION AND ADJUSTMENT SECTION FOR THE CORRECT ATF CHECK/FILL PROCEDURES.
TSB-0682010-10-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. KIA: INTERMITTENT MIL ON WITH NO FAULT CODE STORED; INFORMATION ABOUT DTC P1330. PROVIDES INFORMATION RELATING TO CERTAIN VEHICLES. IN AFFECTED VEHICLES AN INTERMITTENT SHORT TO GROUND IN A CIRCUIT ONLY INTENDED FOR TESTING PURPOSES MAY CAUSE THE MIL TO ILLUMINATE AND A DTC P1330 (SPARK TIMING ADJUST) TO BE STORED. *PE
TSB-0532010-09-04. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. KIA: ECM UPGRADE-DTC P0130 AND P0150 ON 2.7L ENGINE EQUIPPED. PROVIDES INFORMATION RELATED TO A ECM SOFTWARE UPGRADE OF SOME MODEL YEAR 2005-2006 VEHICLES EQUIPPED WITH 2.7L ENGINES WHICH MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP ILLUMINATED WITH ECM (ELECTRONIC CONTROL MODULE) SYSTEM RELATED DTCS. *PE
TSB-0442010-08-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ELECTRICAL SYSTEM:SOFTWARE. KIA: ECM UPGRADE WITH TP SENSOR REPLACEMENT-MIL ON WITH DTC P2135/P0638. INFORMATION RELATED TO ECM SOFTWARE AND TP SENSOR UPGRADE ON SOME VEHICLES WITH 2.7L ENGINES WHICH MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH THE ELECTRONIC THROTTLE CONTROL (ETC) SYSTEM RELATED DTC P2135 OR P0638 OR P2A00 OR P2A03. *PE
TSB-0262009-12-30. Service bulletin. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; STRUCTURE:FRAME AND MEMBERS. KIA: DURING A SERVICE PROCEDURE THAT REQUIRES THE SUBFRAME TO BE REMOVED FROM A 2001-2005 OPTIMA (MS) (V-6 OR I-4), AN IMPROVED SERVICE PROCEDURE HAS BEEN DEVELOPED TO ENHANCE SERVICE EFFICIENCY. *PE
KT-20080822012008-12-09. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:BRAKE LIGHTS; PARKING BRAKE:INDICATOR LIGHT. KIA: ALL MODELS. ARTICLE PROVIDES INFORMATION RELATING TO THE IMPROVED DURABILITY OF BULB LIFE FOR REAR COMBINATION BULB; REAR STOP LAMP/TAIL LAMP BULB UTILIZED ON MULTIPLE KIA MODELS. *PE
0382008-01-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. THIS BULLETIN PROVIDES INFORMATION RELATING TO AN ENGINE HESITATION OR THE ILLUMINATION OF THE MALFUNCTION INDICATOR LAMP (MIL) FOR P0123 (THROTTLE POSITION SENSOR / SWITCH (A) CIRCUIT HIGH INPUT). *NJ
0352007-10-09. Service bulletin. AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE. SUPPLEMENT RESTRAINT SYSTEM (SRS) WARNING LAMP ILLUMINATION FOR B1378 AND B1382. *NJ
0182007-05-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION ADAPTIVE VALUE RESET/RELEARN. *KB
0112006-04-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. CANISTER CLOSE VALVE INSPECTION/REPLACEMENT. MALFUNCTION INDICATOR LIGHT (MIL) RELATED TO THE CANISTER CLOSE VALVE AND/OR EVAPORATIVE SYSTEM. *TT
0122005-11-30. Service bulletin. STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. POWER STEERING FLUID UPDATE. *TT
0232005-11-30. Service bulletin. ENGINE AND ENGINE COOLING. HESITATION FOR A SHORT PERIOD OF TIME AFTER AN INITIAL COLD START. ECM REPROGRAMMING/UPGRADE. *TT
0062005-10-13. Service bulletin. FUEL SYSTEM, OTHER. ENHANCED DIAGNOSIS AND REPAIR FOR P0446/P2422. *TT
842005-09-28. Service bulletin. UNKNOWN OR OTHER. TECHLINE FAQS. KIA TECHNICIAN TIMES. VOLUME 8, ISSUE 4. *TT
762005-08-11. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. NEW NAME & MAINTENANCE SCHEDULE FOR EVAP CANISTER VENT FILTER. KIA TECHNICIAN TIMES. *TT
822005-07-13. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. IMPROVED TIMING BELTS FOR THE KIA RIO AND OPTIMA. *TT

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