2018 Kia Optima Technical Service Bulletins

155 technical service bulletins (TSBs) are on record for the 2018 Kia Optima. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10123332Oct 24, 2017Transmission and drivetrain. TSB - SERVICE ACTION: 2.0T & 3.3L SHIFT QUALITY LOGIC IMPROVEMENT (SA315) - This bulletin provides the procedure to improve the logic of the Transmission Control Unit (TCU) on some 2018MY Optima (JFa) 2.0T, produced from April 19, 2017 through July 10, 2017, and some 2018MY Sorento (UMa) 2.0T and 3.3L vehicles, produced from March 31, 2017 through July 25, 2017, which may experience a shift quality concern, such as…
• 10123330Oct 24, 2017Transmission and drivetrain. TSB - SERVICE ACTION: 2.4L SHIFT QUALITY & WAKE-UP LOGIC IMPROVEMENT (SA316) - This bulletin provides the procedure to improve the logic of the Electronic Control Unit (ECU) and Transmission Control Unit (TCU) on some 2018MY Optima (JFa) 2.4L, produced from April 18, 2017 through September 7, 2017, and some 2018MY Sorento (UMa) 2.4L vehicles, produced from March 31, 2017 through October 19, 2017, which may…
• 10123321Oct 23, 2017Electrical system. PITSTOP - OPTIMA TRUNK TORSION BAR ADJUSTMENT - On some 2016-2018MY Optima (JFa) vehicles, there may be a concern with the trunk not opening as designed when using transmitter key fob or Smart Trunk feature. This may be caused by improper assembly of the trunk torsion bar (A) and trunk lid hinge. Follow the procedure in this publication to correct this concern.
• 10123320Oct 23, 2017Electrical system. PITSTOP - ECO-COASTING (ECOASTING) & ECO-DAS (DRIVING ASSISTANT SYSTEM) OVERVIEW ? CUSTOMER TIP - This Pitstop provides information regarding Eco-Coasting Guide (eCoasting) and Eco-Driving Assistant System (DAS) found on 2017-18MY Niro (DE HEV), Niro Plug-in (DE PHEV), Optima Hybrid (JF HEV), and Optima Plug-in (JF PHEV) vehicles.
• 10123319Oct 10, 2017Electrical system. PITSTOP - HYBRID POWER CONTROL UNIT 30A DC FUSE - The 2017MY~ Optima Hybrid (JF HEV), Optima Plug-in Hybrid (JF PHEV), and Niro (DE HEV) vehicles are equipped with a replaceable 30A fuse for the eCompressor. This fuse is easily accessible under a cover between the power cable connector and inverter cable, as shown below. However, the housing for the fuse is internally bolted to the HPCU assembly and is only…

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