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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: Engine are shown. Show all

Bulletins, newest first
SC234_STKR2022-08-03. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. SC234_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION STICKER
SC234_POC2022-08-03. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. SC234_POC: PROOF OF CORRECTION CARD
SC234_DPSM2022-08-03. Service bulletin. ENGINE AND ENGINE COOLING; 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 to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2016-2018 MY Kia Sorento vehicles equipped with the 2.4-liter GDI engine and manufactured from November 4, 2014 through March 7, 2018.
SC234_DP2022-08-03. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. 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 to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2016-2018 MY Kia Sorento vehicles equipped with the 2.4-liter GDI engine and manufactured from November 4, 2014 through March 7, 2018.
PS7202022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP: INJECTOR HARNESS ROUTING FOR PI1802Y/Z AND PI1803Y/Z ENGINE REPLACEMENTS - This bulletin provides information to address a no-start or hard start with poor running condition after engine replacement under PI1802Y/Z or PI1803Y/Z. Some replacement long blocks may come with pre-installed fuel rail, injectors, and injector wiring harness. If the condition is present, it is possible that the injector harness was not installed correctly. The connections may be swapped from cylinder No. 1 and cylinder No. 4, and from cylinder No. 2 and cylinder No. 3.
WTY026_REIMB_XM2022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. WARRANTY EXTENSION: REIMBURSEMENT FORM - This document is a Reimbursement Request form for 14-18 MY Sorento customers which 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.
WTY026_OWNR_XM2022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. WARRANTY EXTENSION: OWNER NOTIFICATION - This document is the owner notification that Kia is extending the New Vehicle Limited Warranty coverage for repairs that may be necessary to address an Oil Pressure Switch leak in 2014-2018 MY Sorento vehicles equipped with 3.3L GDI Engine 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.
WTY026_QA2022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. WARRANTY EXTENSION: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the warranty extension (WTY026).
WTY026_DPSM2022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. WARRANTY EXTENSION: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers of the warranty extension program for WTY026. Kia is extending the New Vehicle Limited Warranty coverage for the repairs related to the Oil Pressure Switch leaking for eligible 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.
WTY026_DP2022-05-04. Service bulletin. ENGINE AND ENGINE COOLING. WARRANTY EXTENSION: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals of the warranty extension program for WTY026. Kia is extending the New Vehicle Limited Warranty coverage for the repairs related to the Oil Pressure Switch leaking for eligible 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.
TSB_ENG222_R62022-03-31. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
TSB_ENG222_R52022-01-20. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
PI1802YZ_TSB_R62022-01-04. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z) - 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 related to the Technical Service Bulletin previously published PI1802 titled "Knock Sensor Detection System - ECU Logic Improvement" equipped w/THETA II engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
TSB_ENG222_R42021-12-23. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
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.
PI1802YZ_TSB_R52021-12-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z) - 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 related to the Technical Service Bulletin previously published PI1802 titled "Knock Sensor Detection System - ECU Logic Improvement" equipped w/THETA II engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
TSB_ENG222_R32021-09-10. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 diagnosing and/or repairing some 2011-2019MY vehicles (refer to table below for applicable model and engine), which may exhibit a symptom of excessive oil consumption.
SC201_TSB2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: 2.0L T-GDI AUXILIARY CANISTER KIT INSTALLATION (SC201) - This bulletin provides the procedure for the installation of an add-on auxiliary canister on some 2016-2018MY Sorento (UMa) vehicles equipped with the 2.0L T-GDI engine, produced from October 29, 2014 through November 29, 2017. This is to improve evaporative system and ensure compliance with Federal and California emission regulation standards.
SC201_QA2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. SC201_QA: QUESTION AND ANSWER - This document is the Question and Answer guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign (SC201).
SC201_OWNR2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. SC201_OWNR: OWNER NOTIFICATION - This document is the notification to customers that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2016-2018 MY Kia Sorento vehicles equipped with the 2.0-liter Turbo-GDI engine and manufactured from October 29, 2014 through November 29, 2017.
SC201_DPSM2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. SC201_DPSM: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2016-2018 MY Kia Sorento vehicles equipped with the 2.0-liter Turbo-GDI engine and manufactured from October 29, 2014 through November 29, 2017.
SC201_DP2021-05-03. Service bulletin. ENGINE AND ENGINE COOLING. SC201_DP: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2016-2018 MY Kia Sorento vehicles equipped with the 2.0-liter Turbo-GDI engine and manufactured from October 29, 2014 through November 29, 2017.
TSB_ENG222_R22021-03-24. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA ENGINES - 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 diagnosing and/or repairing some 2011-2019MY vehicles (refer to table below for applicable model and engine), which may exhibit a symptom of excessive oil consumption.
TSB_ENG222_R12021-02-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA ENGINES - 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 diagnosing and/or repairing some 2011-2019MY vehicles (refer to table below for applicable model and engine), which may exhibit a symptom of excessive oil consumption.
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.

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