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Service bulletins for the 2019 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.

153 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
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.
TSB_ENG2192020-08-04. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - This bulletin provides information on setting the "Service Interval Reminder" feature available on most Kia vehicles. If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance.
PI1805_TSB_R22020-04-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: TSB_R2 - KNOCK SENSOR DETECTION SYSTEM (KSDS) LOGIC IMPROVEMENT (PI1805) - This bulletin has been revised to include additional information. 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.
PI1805_TSB_R12019-12-09. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. TSB: PRODUCT IMPROVEMENT CAMPAIGN PI1805_R1: KNOCK SENSOR DETECTION SYSTEM (KSDS) - This bulletin has been revised to include additional information. LOGIC IMPROVEMENT (PI1805) - 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.
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.
SC169_TSB_R12019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN (SC169_Rev1): ENGINE OIL FILLER CAP INSPECTION AND/OR REPLACEMENT - This bulletin has been revised to include additional information.This bulletin provides the procedure to inspect and, if necessary, replace the oil filler cap on some vehicle models listed below. The engine oil filler cap may contain a misprint of SAE Engine Oil Viscosity Number. Follow the procedure outlined in this bulletin to replace the oil filler cap.
SC169_TSB2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: ENGINE OIL FILLER CAP INSPECTION AND/OR REPLACEMENT (SC169) - This bulletin provides the procedure to inspect and, if necessary, replace the oil filler cap on some vehicle models listed below. The engine oil filler cap may contain a misprint of SAE Engine Oil Viscosity Number. Follow the procedure outlined in this bulletin to replace the oil filler cap.
SC169_QA2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN (SC169): QUESTIONS AND ANSWERS - This document contains questions and answers regarding the Voluntary Emissions Service Campaign on the Engine Oil Filler Cap inspection, and if necessary, replacement.
SC169_OWNER_JFA2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN (SC169): ENGINE OIL FILLER CAP - This document is the owner notification letter for 2019 MY Kia Optima vehicle owners advising them that Kia Motors America is conducting a Voluntary Emissions Service Campaign to inspect, and if necessary replace the Engine Oil Filler Cap on certain 2019 MY Kia Optima vehicles.
SC169_DSM2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN (SC169): DEALER SERVICE MANAGER NOTICE - Kia Motors America, Inc. will be conducting a Voluntary Emissions Service Campaign to inspect and, if necessary, replace the engine oil filler cap on certain 2018 MY Stinger, 2018 MY Cadenza, 2019 MY Sedona, 2019 MY Sorento, and 2019 MY Optima vehicles. The engine oil filler cap may contain a misprint of the SAE Engine Oil Viscosity Number.
SC169_DP2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN (SC169) DEALER PRINCIPAL NOTICE - This document notifies the Kia dealer principals that that Kia Motors America, Inc. will be conducting a Voluntary Emissions Service Campaign to inspect and, if necessary, replace the engine oil filler cap on certain 2018 MY Stinger, 2018 MY Cadenza, 2019 MY Sedona, 2019 MY Sorento, and 2019 MY Optima vehicles. The engine oil filler cap may contain a misprint of the SAE Engine Oil Viscosity Number.
PI1805_Owner_JFA2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1805): OWNER NOTIFICATION - OPTIMA -This document is the owner letter for Kia Optima owners advising them of the Product Improvement Campaign to perform a software update on some 2019 MY Optima vehicles equipped with 2.4L Gasoline Direct Injection (GDI) and 2.0L Turbocharged GDI (T-GDI) 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).
PI1805_DSM2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1805) - DEALER SERVICE MANAGER NOTCE - This document is the Dealer Service Manager notification 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.
PI1805_DP2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1805) DEALER PRINCIPAL NOTICE - This document is notice to the Dealer Principals advising them of the Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
PS6162019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP: LOWER ENGINE SERVICE COVER BOLT LOCATIONS - This Pitstop provides information on the correct bolt location of the lower engine service cover on 2016-2020MY Optima 2.4L and 2.0L equipped vehicles. The lower engine service cover is secured by seven (7) retaining bolts. Installation of the two (2) long bolts in the incorrect location may cause puncture or damage to the oil pan in the event that the vehicle is bottomed out while driving. If the oil pan is damaged or punctured, the engine oil may leak, possibly causing engine damage. This
PI1805_TSB2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1805) - TSB: 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.
PI1805_QA2019-11-07. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1805): QA - This document is the Question and Answer Guide for this Product Improvement Campaign to improve the knock sensor detection system (KSDS) logic.
TSBENG197_R12019-06-04. Service bulletin. ENGINE AND ENGINE COOLING. TSB: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC19) - This bulletin has been revised to include additional information. This bulletin provides information related to extracting "in use performance tracking" emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California.
TSBENG1972019-03-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT. TSB: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC19) - This bulletin provides information related to extracting ?in use performance tracking? emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California. The California Air Resources Board (CARB) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting.
TSBENG1982019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. TSB: SERVICE ACTION: 2.4L GDI ENGINE START LOGIC IMPROVEMENT (SA369) - This bulletin provides the procedure to improve the logic of the Engine Control Unit (ECU) on some 2019MY Optima (JFa) vehicles, produced from May 21, 2018 through January 4, 2019, which may experience an intermittent difficult-to-start concern during a cold start.

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