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Service bulletins for the 2014 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.

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

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Bulletins, newest first
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-ELE062R22017-08-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. TSB: NAVIGATION UNIT SOFTWARE UPGRADE - This bulletin provides the procedure for upgrading the navigation system software on some 2014MY Cadenza (VG) Sorento (XMa) and Optima (TF/QF) vehicles, produced from March 11, 2013 through January 24, 2014.
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.
TSB-GEN0572017-08-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TSB: GENERAL INFORMATION AND DIAGNOSIS FOR SMART KEY FOB SYSTEMS AND START/STOP BUTTONS - This bulletin provides information related to the Smart Key Systems on vehicles equipped with A/T (automatic transaxle) and Start/Stop Buttons (SSB).
TSB-ELE062R12017-08-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. TSB: NAVIGATION UNIT SOFTWARE UPGRADE - This bulletin provides the procedure for upgrading the navigation system software on some 2014MY Cadenza (VG) and Optima (TF/QF) vehicles, produced from March 11, 2013 through January 24, 2014.
TSB-CLI017R42017-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: EV AND HYBRID A/C SYSTEM SERVICING REQUIREMENTS - The Soul Electric Vehicle (EV) and the Optima Hybrid use an A/C compressor that is driven by a high-voltage electric motor rather than by a belt. Both the motor and compressor are in one housing with a mix of refrigerant and oil flowing through both sections. Because the oil flows through the motor windings, it must have a high electrical resistivity (low conductivity).
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.?
TSB-ENG160R12017-08-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. TSB: ECU UPGRADE ? MIL ON WITH DTC(s) P0420/P0171 - This bulletin provides information related to the ECU software upgrade for some 2012~2015MY Optima (QF) vehicles, produced from August 12, 2011 to October 2, 2015, some 2012~2015MY Sorento (XMa) vehicles, produced from April 19, 2011 to December 11, 2014, some 2011~2015MY Optima (TF) vehicles, produced from August 12, 2010 to July 23, 2015, and some 2014~2016MY Sportage (SL) vehicles, produced from September 30, 2013 to November 16, 2015, which may experience a malfunction indicator lamp (MIL) illuminated with the Electronic Control Unit (ECU) system-related DTC(s): P0420 and possibly P0171. This concern occurs most commonly during prolonged engine braking while descending a steep grade.
PS3482017-08-02. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: DIM HEAD UNIT DISPLAY IN COLD WEATHER CONDITIONS - Refer to this article when addressing a customer complaint related to a Base Audio head unit display which appears to have no display or a dim display (see image below) at or below freezing conditions.
PS3392017-08-02. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. PITSTOP: REMOTE START SYSTEM DIAGNOSTIC HOTLINE - When diagnosing remote start systems, refer to the table shown in this article for detailed information on applicable models, model year and system supplier; along with the applicable Hotline contact information and business hours.
PS3432017-08-02. Service bulletin. STEERING. PITSTOP: OILY SUBSTANCE DRIPPING FROM MDPS STEERING COLUMN - On some Optima (QF/TF/TF HEV) vehicles, the customer may complain of an oily substance dripping onto the driver?s side floorboard area, especially in areas with high ambient temperatures. This article provides the process to resolve by cleaning excessive amounts of grease applied applied to the steering column tilt adjustment area.
PS3382017-08-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. PITSTOP: HEATER BLOWING COLD AIR WHILE IN EV MODE - When diagnosing a concern related to the heater intermittently blowing cold air while in EV mode, check the Electric Water Pump (EWP) for the A/C system (NOT the main cooling system EWP), located on the rear of the transmission (A), for proper operation. To test EWP operation, disconnect connector CHG31/C131 (B) and apply power and ground to the EWP.
PS3282017-08-02. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE. PITSTOP: HESITATION IN ELECTRIC AND GAS MODES - When diagnosing an Optima Hybrid with an off idle hesitation concern that can be duplicated, and no DTC(s) codes (active or history) are stored, access MCU > Current Data to check the status of the MCU warning flag.
TSB-ENG137R22017-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC005) - This bulletin provides information related to extracting ?in use performance tracking? emissions data from the engine control unit (ECU) in certain vehicles sold in California.
PS2972017-08-02. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:REAR. PIT STOP: SQUEAKING NOISE FROM REAR OF VEHICLE - When addressing a customer complaint related to a squeaking sound emanating from the rear of the vehicle, and the noise can be isolated to the rear suspension, check the right and left rear shock towers as the most likely source of the noise.
TT0402017-08-02. Service bulletin. ENGINE. TECH TIP: DTCs POC17 and P1C76 not clearing - Perform the motor/HSG resolver calibration located in the S/W management section of the ?Motor Control Unit? (MCU) system.
TT0392017-08-02. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. TECH TIP: Issues with Eco Gauge Needle - The ECO gauge needle never reaches the green shaded portion of the cluster, even on wide open throttle.
PS2802017-08-02. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. TURBOCHARGER OIL LINE INSPECTION - Follow the procedure in this article to properly inspect/clean the oil feed and return lines.
TSB-CHA044R22017-08-02. Service bulletin. STEERING. TSB: MDPS FLEXIBLE COUPLING REPLACEMENT - Rev 2 - This bulletin provides information related to the replacement of the flexible coupling in the MDPS motor of some of vehicles, which may experience a ?clicking? noise emanating from the MDPS when turning the steering wheel left or right, while stopped. This condition may be caused by premature wear of the flexible coupling in the MDPS.
TSB-SC135R12017-08-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT ADAPTIVE/MOBILITY. TSB: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: EVAPORATIVE CANISTER INSPECTION AND/OR REPLACEMENT (SC135) - This bulletin provides information to inspect and/or replace the evaporative canister assembly on some Optima (TF) vehicles, produced from September 2, 2010 through November 29, 2014, some Optima Hybrid (TF HEV) vehicles, produced from February 15, 2011 through November 29, 2014, some Rondo (UN) vehicles, produced from April 1, 2009 through July 30, 2010, and some Sedona (VQ) vehicles, produced from April 1, 2009 through June 17, 2014. The subject vehicles originally sold or currently registered in one of twenty-eight (28) salt belt states may experience a leak detection warning of the evaporative emission systems, along with DTC(s) P0442 or P0455. For vehicles originally sold or currently registered in one of the twenty-eight (28) salt belt states, (AK, CT, DC, DE, IA, IL, IN, MA, MD, ME, MI, MN, MO, NH, NJ, NY, OH, PA, RI, VT, WI, WV, KS, KY, NE, ND, SD and UT), the evaporative canister will be inspected, and if no leak is found, the mounting bracket will be replaced with a new improved part. If a crack in the evaporative canister is found, the canister will be replaced with a new improved part. Before conducting the procedure, verify the vehicle is included in the list of affected VINs. For vehicles in other states, Kia is extending the warranty on the evaporative canister from 5 years/60,000 miles to 10 years/120,000 miles, whichever occurs first starting from the date of first service. Follow the procedures outlined in this bulletin to resolve the concern.
TSB-ENG1602017-08-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. TSB: ECU UPGRADE ? MIL ON WITH DTC(s) P0420/P0171 - This bulletin provides information related to the ECU software upgrade for some 2012~2015MY Optima (QF) vehicles, produced from August 12, 2011 to October 2, 2015, some 2012~2015MY Sorento (XMa) vehicles, produced from April 19, 2011 to December 11, 2014, some 2011~2015MY Optima (TF) vehicles, produced from August 12, 2010 to July 23, 2015, and some 2014~2016MY Sportage (SL) vehicles, produced from September 30, 2013 to November 16, 2015, which may experience a malfunction indicator lamp (MIL) illuminated with the Electronic Control Unit (ECU) system-related DTC(s): P0420 and possibly P0171. This concern occurs most commonly during prolonged engine braking while descending a steep grade.
TSB-ELE1172017-08-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TSB: NAVIGATION SOFTWARE UPDATE - NO SIRIUS TRAFFIC DISPLAY - This bulletin provides the procedure for updating the Navigation software on some Sportage (SL), Cadenza (VG), Optima (QF/TF), and Optima (TF HEV) vehicles, which may experience an inactive (grayed out) Sirius Traffic icon, no traffic flow shown, or a ?There is no traffic on route.? message.
TSB-ELE044R12017-08-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: HIGH-VOLTAGE BATTERY ORDERING AND RETURN PROCEDURE - This bulletin outlines the ordering and return procedure for high-voltage Lithium-ion batteries equipped on EV/hybrid vehicles (hereafter referred to as "high-voltage batteries" or HVBs). Every Kia-approved EV/hybrid dealership?s parts and service departments should follow these procedures to ensure the fastest handling time and to minimize the possibility of charge-backs.
PS3272017-08-02. Service bulletin. EQUIPMENT; ENGINE. PITSTOP: RESETTING CYLINDER BALANCE ADAPTATION VALUES - When addressing a cylinder balance concern on a vehicle equipped with a 2.4L GDI engine, it is important to note that the DTC may recur after replacement of any faulty component(s) and resetting adaptive values. See this Article for information on resetting cylinder balance adaptation values.
PS3252017-08-02. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. PITSTOP: SLIGHT VARIATION IN THE ?SET? SPEED AFTER SETTING CRUISE CONTROL - A few customers have complained about their vehicle briefly accelerating beyond the set cruising speed and then slowing down to the "set" speed. This Article addresses that concern.

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