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Service bulletins for the 2018 Kia Sorento

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
WTY031_TSB2023-06-01. Service bulletin. ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS; ELECTRICAL SYSTEM; EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING. TECHNICAL SERVICE BULLETIN: MULTIFUNCTION SWITCH REPAIR - This bulletin provides information associated with the 'Multifunction Switch Warranty Extension Program' (WTY031) to repair the multifunction switch knob on 2016-2018MY Sorento (UMa) vehicles, produced at Kia Georgia from October 27, 2014 through March 7, 2018, which may exhibit an intermittent headlamp flickering. The vehicle’s warranty for this issue will be extended from 5 years/60,000 miles to 15 years/150,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
CS2304_TSB_R32023-05-30. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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 the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 2011-2015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2022MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
CS2304_TSB_R22023-05-30. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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 the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 2011-2015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2022MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation which activates when the vehicle is locked.
WTY031_DP2023-05-04. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. WARRANTY EXTENSION: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for the multi-function switch assembly on 2016-2018 MY Sorento vehicles from 5 years / 60,000 miles to 15 years / 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. The contact points in the multi-function switch in the vehicle may become worn, and it could result in intermittent headlamp flickering.
WTY031_DPSM2023-05-04. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. WARRANTY EXTENSION: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for the multi-function switch assembly on 2016- 2018 MY Sorento vehicles from 5 years / 60,000 miles to 15 years / 150,000 miles, whichever comes first, starting from the date the vehicle was first put into service. The contact points in the multi-function switch in the vehicle may become worn, and it could result in intermittent headlamp flickering.
WTY031_QA2023-05-04. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING. WARRANTY EXTENSION: QUESTION AND ANSWER - This document is a Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension (WTY031).
WTY031_REIMB2023-05-04. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. WARRANTY EXTENSION: REIMBURSEMENT FORM - This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the warranty extension program launch.
SC260_TSB2023-04-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA 2.0L T-GDI ECU LOGIC IMPROVEMENT (SC260) - This bulletin provides the procedure to update the emissions-related software logic of the Electronic Control Module (ECM) with an improved version on certain 2016-2018MY Sorento vehicles equipped with Theta 2.0L T-GDI ULEV engines, produced from October 29, 2014 through November 29, 2017. To ensure compliance with emissions regulations, apply the improved logic to the 'Emissions' system using the KDS ECU Upgrade function as described in this bulletin.
SC260_STKR2023-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; FUEL SYSTEM, GASOLINE. SC260_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION STICKER
SC260_POC2023-04-22. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; EQUIPMENT. SC260_POC: PROOF OF CORRECTION CARD
SC260_QA2023-04-22. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign (SC260).
SC260_OWNR2023-04-22. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign on certain 2016-2018 MY Kia Sorento vehicles equipped with 2.0L Turbo GDI engines manufactured from October 29, 2014 to November 29, 2017 to improve the emission logic in the Electronic Control Module ('ECM') to ensure compliance with emissions regulations. This condition may cause the vehicle to release air pollutants that exceed Federal and California standards.
SC260_DPSM2023-04-22. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a Voluntary Emissions Service Campaign on certain 2016-2018 MY Kia Sorento vehicles equipped with 2.0L Turbo GDI engines manufactured from October 29, 2014 to November 29, 2017 to improve the emission logic in the Electronic Control Module ('ECM') to ensure compliance with emissions regulations. This condition may cause the vehicle to release air pollutants that exceed Federal and California standards.
SC260_DP2023-04-22. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Emissions Service Campaign on certain 2016-2018 MY Kia Sorento vehicles equipped with 2.0L Turbo GDI engines manufactured from October 29, 2014 to November 29, 2017 to improve the emission logic in the Electronic Control Module ("'ECM') to ensure compliance with emissions regulations. This condition may cause the vehicle to release air pollutants that exceed Federal and California standards.
CS2304_TSB_R12023-04-06. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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 the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 2011-2015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2022MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation.
CS2304_TSB2023-04-06. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM), or Intelligent Integrated Platform Module (IPM) system on certain 20132015MY Sorento (XMa), 2016-2020MY Sorento (UMa), and 2021-2023MY Sorento (MQ4a) vehicles produced within the dates outlined on page 10, which may not be equipped with an immobilizer. This logic upgrade will add anti-theft ignition start logic to the vehicle's system operation.
CS2304B_OWNR2023-04-06. Service bulletin. ELECTRICAL SYSTEM. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject of a break-in and theft attempt without the key. This software upgrade will be available to the customer free of charge for eighteen (18) months from the date of this letter. When the software upgrade is complete, Kia will also provide the customer with window stickers that can be applied to your vehicle to discourage a break-in.
TSB_ENG219_R12022-09-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - 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 on setting the "Service Interval Reminder" feature available on most 2014-2023MY Kia vehicles (refer to model list on page 2). 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. Refer to TSB ENG241 for 2023MY~ vehicles equipped with the Oil Life Management System (OLMS) feature not included in table on page 2.
TSB_ELE2612022-08-03. Service bulletin. ELECTRICAL SYSTEM; TRAILER HITCHES. TECHNICAL SERVICE BULLETIN: TRAILER HITCH ACCESSORY FUSE REQUIREMENT - This bulletin provides information regarding the trailer hitch accessory installation on some 2016-2020MY Sorento (UMa) vehicles. Note that the Kia trailer hitch accessory kit requires the use of a 15 Amp fuse rating to be used. The manufacturer of the trailer hitch accessory specifies a fuse size based on development and design of their components including pin terminal, number of circuits, and module design. Always confirm the model of the hitch installed and use the recommended fuse rating required by the manufacturer.
PS613_R12022-04-01. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: INSTRUMENT CLUSTER REPLACEMENT AND MILEAGE SETTING WITH KDS - 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 pitstop provides the KDS service procedure for mileage setting on the models listed below with newly replaced instrument clusters. Certain models allow for mileage setting with the KDS, which prevents the need to send out the instrument cluster to a 3rd party for mileage adjustment (refer to PS264). After a new cluster is installed, cluster (variant) coding may also need to be conducted using the KDS. Make sure the KDS software is also updated to the latest version. Mileage setting should be performed by using the KDS only, as described in this bulletin.
TSB_SST067_R12021-12-01. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin provides information regarding test procedure of the Bearing Clearance Tester (BCT) Special Service Tool (SST). The SST comes pre-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
TSB_ELE2482021-12-01. Service bulletin. SERVICE BRAKES; EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: OUTSIDE REAR COMBINATION LAMP HARNESS REPLACEMENT - This bulletin provides the procedure to replace both outside rear combination lamp harnesses on some 2018-2019MY Sorento (UMA) vehicles, produced from January 2, 2018, through September 30, 2018, which may exhibit an intermittent inoperative brake light with the possibility of a "Check brake light" warning on the instrument cluster display.
PS7042021-08-25. Service bulletin. FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM. PITSTOP: FRONT RADAR SENSOR MOUNTING INSPECTION (PS704) - This pitstop provides information regarding front radar sensor alignment on 2014MY and later vehicles that may exhibit a warning light ON related to radar sensor alignment errors in the Forward Collision-Avoidance Assist (FCA)/Smart Cruise Control (SCC) system.
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.

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