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Service bulletins for the 2015 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.

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

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Bulletins, newest first
VPI1802WX_TSB_R22019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802W/X) - This bulletin has been revised to include additional information. This bulletin provides information related to the Technical Service Bulletin previously published in July 2018 (PI1802, Rev 5, 12/20/2018) titled ?Knock Sensor Detection System - ECU Logic Improvement?. 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.
VPI1802_TSB_R62019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN:KNOCK SENSOR DETECTION SYSTEM - ECU LOGIC IMPROVEMENT (PI1802) - 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.
TSBENG083_R12019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. TSB: SPECIAL SERVICE INFORMATION & SPECIFICATIONS FOR GDI HIGH PRESSURE FUEL SYSTEM - This bulletin has been revised to include additional information. This bulletin provides information relating to all Kia vehicles equipped with Gasoline Direct Injection (GDI) engines. In these engines highly pressurized gasoline is injected via a common fuel rail and injectors that deliver fuel directly into the combustion chamber of each cylinder. In comparison, in a conventional Multi-Point Fuel Injection (MPI) engine, the gasoline is injected into the intake port of each cylinder at a relatively low pressure. Due to high fuel pressure in a GDI system, servicing the GDI system requires special attention and handling procedures. This bulletin provides special service information and specifications for the GDI fuel system components.
TSBCHA084_R12019-02-19. Service bulletin. STEERING. TSB: REPLACEMENT OF C-MDPS MOTOR AND/OR ECU - 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 and/or Electronic Control Unit (ECU) on the listed Kia models with a column mounted C-MDPS unit.
DC_201901252019-02-19. Service bulletin. ENGINE AND ENGINE COOLING. RECENT KIA MEDIA REPORTS, January 25, 2019 Update - Dear Kia Retailer, At Kia, safety is a top priority and we wrote to you last August and again last October to provide you with updates regarding news reports about non-collision fires in Kia vehicles and the status of Kia?s cooperative work with NHTSA.
VPI1802_TSB_R52019-02-19. Service bulletin. ELECTRICAL SYSTEM. PRODUCT IMPROVEMENT CAMPAIGN - 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.
VPI1802_TSB_R42019-02-19. Service bulletin. ELECTRICAL SYSTEM. PRODUCT IMPROVEMENT CAMPAIGN - This TSB 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
VPI1802_TSB_R32019-02-19. Service bulletin. ELECTRICAL SYSTEM. VEHICLE PRODUCT IMPROVEMENT CAMPAIGN - KNOCK SENSOR DETECTION SYSTEM - ECU LOGIC IMPROVEMENT (PI1802) - 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
VPI1802WX_TSB_R12019-01-07. Service bulletin. ENGINE. PRODUCT IMPROVEMENT CAMPAIGN - ENGINE REPLACEMENT INSTRUCTIOENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802W/X) - This bulletin provides information related to the Technical Service Bulletin previously published in July 2018 (PI1802, Rev 2, 09/24/2018) titled ?Knock Sensor Detection System - ECU Logic Improvement?. 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.
VPI1802WX_TSB2018-11-13. Service bulletin. ENGINE AND ENGINE COOLING. PRODUCT IMPROVEMENT CAMPAIGN (PI1802) - TSB - ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802W/X) - This bulletin provides information related to the Technical Service Bulletin previously published in July 2018 (PI1802, Rev 2, 09/24/2018) titled ?Knock Sensor Detection System - ECU Logic Improvement?. 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.
VPI1802_WTY2018-10-09. Service bulletin. ENGINE. PRODUCT IMPROVEMENT CAMPAIGN (PI1802) - WARRANTY BULLETIN - KMA launched Product Improvement Campaign PI1802A on July 25, 2018 to perform a software update on certain vehicles with 2.4L GDI engines to alert vehicle drivers at an early stage of bearing wear to prevent severe engine damage.
VPI1802_TSB_R22018-10-09. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). PRODUCT IMPROVEMENT CAMPAIGN (PI1802) - TSB - KNOCK SENSOR DETECTION SYSTEM - ECU LOGIC IMPROVEMENT (PI1802) - 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.
VPI1802_TSB_R12018-09-10. Service bulletin. ENGINE AND ENGINE COOLING. TSB: PRODUCT IMPROVEMENT CAMPAIGN: KNOCK SENSOR DETECTION SYSTEM - ECU LOGIC IMPROVEMENT (PI1802) - 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. This update is for: * Some 2014MY Optima (TF) vehicles equipped with 2.4L GDI engines, manufactured at KMC from August 29, 2013 through April 25, 2014; * All 2015MY Optima (TF/QF) vehicles equipped with 2.4L GDI and 2.0L Turbocharged GDI (T-GDI) engines; * All 2014-2015MY Sportage (SL) vehicles equipped with 2.4L GDI and 2.0L Turbocharged GDI (T-GDI) engines; * All 2015MY Sorento (XMa) vehicles equipped with 2.4L GDI engines, manufactured from January 3, 2014 through December 11, 2014. The KSDS detects vibrations indicating the onset of excessive connecting rod bearing wear. It is designed to alert the driver at an early stage of bearing wear before the occurrence of severe engine damage, including engine failure. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, and the vehicle will be placed in Limp Home Mode. This will reduce further damage to the engine and ensure that the vehicle occupants are not exposed to the risk of a more severe engine failure. At that time, Diagnostic Trouble Code (?DTC?) P1326, specific to the KSDS, will be recorded in the ECU. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed. Also, engine RPMs will be limited to approximately 1800-2000 RPM. Kia is requesting the completion of this Product Improvement Campaign on all affected vehicles.
VPI1802_TSB2018-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; ENGINE. TSB - This document is the Technical Service Bulletin for the new Product Improvement Campaign to provide information regarding a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
VPI1802_QA2018-08-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE; ENGINE; POWER TRAIN. Q & A - This document is the Q & A for the new Product Improvement Campaign to provide information regarding a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
VPI1802_OWNER_SO2018-08-06. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. OWNER NOTICE - This document is the Owner Notice for the new Product Improvement Campaign to provide information regarding a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
VPI1802_DSM2018-08-06. Service bulletin. ENGINE; POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. DEALER SERVICE MANAGER NOTICE - This notice advised the dealer service manager of the new Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
VPI1802_DP2018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. DEALER PRINCIPAL NOTICE - This notice advised the dealer principal of the new Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage.
PS464_R22018-08-06. Service bulletin. VISIBILITY; LANE DEPARTURE: BLIND SPOT DETECTION. PITSTOP - NO COMMUNICATION WITH BLIND SPOT DETECTION AFTER COLLISION REPAIRS - This Pitstop provides information relating to the vehicles listed below with Blind Spot Detection (BSD), which may exhibit a ?Check BSD System? message and no communication with the BSD system after collision repairs.
TSBELE145_R12018-05-14. Service bulletin. EQUIPMENT:ELECTRICAL. TSB - HEAD UNIT MISMATCH WITH MICROPHONE - This bulletin has been revised to include additional information. This bulletin provides information regarding correct 3.3 Volt and 8 Volt microphone (MIC) matching with head unit part numbers on some 2014-2015MY vehicles, in the event that the following concern occurs after a head unit replacement: * ?Bluetooth sound cannot be heard during a phone call by the person I am talking to (on the receiving end)? * ?Voice recognition is not working? * ?Voice commands are not picked up at all?
TSBELE1452018-04-16. Service bulletin. EQUIPMENT. TSB - HEAD UNIT MISMATCH WITH MICROPHONE - This bulletin provides information regarding correct 3.3 Volt and 8 Volt microphone (MIC) matching with head unit part numbers on some 2014-2015MY vehicles.
TSBELE129_R22018-04-16. Service bulletin. EQUIPMENT. TSB - UVO SOFTWARE UPGRADE - This bulletin has been revised and is no longer a Service Action. This bulletin provides the procedure to upgrade the UVO software on some 2015MY Soul (PS), Sportage (SL), Optima (TF, QF), Forte (YD), and Sorento (XMa) vehicles to incorporate Bluetooth and Voice Recognition improvements.
TSBELE128_R22018-04-16. Service bulletin. EQUIPMENT. TSB - AUDIO SOFTWARE UPGRADE - This bulletin has been revised and is no longer a Service Action. This bulletin provides the procedure to upgrade the audio software on some 2015MY Soul (PS), Sportage (SL), Optima (TF, QF), Forte (YD), and Sorento (XMa) vehicles to incorporate Bluetooth and Voice Recognition improvements.
PS5392018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned and transferred to the new engine.
PS476_R12018-04-16. Service bulletin. VEHICLE SPEED CONTROL; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS. PITSTOP - INTERMITTENT LACK OF POWER OR HESITATION UPON ACCELERATION - RESTRICTED FUEL LINE - This bulletin has been revised to include additional information. Customers may experience an intermittent lack of power or hesitation upon acceleration. The malfunction indicator lamp may not illuminate or DTC P0087 may be stored (history). This is possibly due to a restricted low pressure fuel line.

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