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Service bulletins for the 2015 Kia Cadenza

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.

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

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Only bulletins with type: Warranty extension are shown. Show all

Bulletins, newest first
WTY039_TSB_R42025-10-09. Warranty extension. ENGINE. TECHNICAL SERVICE BULLETIN: ENGINE SUB ASSEMBLY: INSPECTION/REPLACEMENT (WTY039) - 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 associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY Cadenza, and 2015-2016 MY Sedona vehicles, equipped with 3.3L GDI engines. The warranty coverage for repairs related to the cylinder head gasket will be extended from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
WTY039_TSB_R32024-12-06. Warranty extension. ENGINE. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY039) - 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 associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY Cadenza, and 2015-2016 MY Sedona vehicles, equipped with 3.3L GDI engines. The warranty coverage for repairs related to the cylinder head gasket will be extended from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
WTY039_TSB2024-06-18. Warranty extension. ENGINE. TECHNICAL SERVICE BULLETIN: WARRANTY EXTENSION CAMPAIGN: ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY039) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub-assembly on 2014-2015 MY Sorento (3.3L GDI Lambda), 2014-2017 MY Cadenza (3.3L GDI Lambda), 2015-2016 MY Sedona (3.3L GDI Lambda) vehicles.
WTY039_REIMB2024-05-29. Warranty extension. ENGINE. WARRANTY EXTENSION CAMPAIGN: REQUEST FOR REIMBURSEMENT FORM (WTY039) - 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.
WTY039_OWNR_VG2024-05-24. Warranty extension. ENGINE. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION (WTY039) - This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to the vehicle’s engine in 2014-2017 MY Cadenza vehicles from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. Under certain severe operating conditions and over time, the engine in the vehicle may develop a coolant leak from the cylinder head gasket area.
WTY039_QA2024-05-23. Warranty extension. ENGINE. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY039.
WTY039_DPSM2024-05-23. Warranty extension. ENGINE. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO (WTY039) - 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 certain repairs related to the vehicle’s engine in the following vehicles equipped with 3.3L V6 engines: 2014-2015 MY Sorento vehicles, manufactured from December 17, 2012 through December 11, 2014, 2014-2017 MY Cadenza vehicles, manufactured from February 1, 2013 through July 12, 2017, and 2015-2016 MY Sedona vehicles, manufactured from July 21, 2014 through March 17, 2016. This will extend the warranty from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service. Under certain severe operating conditions and over time, the engine in the vehicle may develop a coolant leak from the cylinder head gasket area.
WTY039_DP2024-05-23. Warranty extension. ENGINE. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO (WTY039) - This document is the announcement to the dealer principals that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for certain repairs related to the vehicle’s engine in the following vehicles equipped with 3.3L V6 engines: 2014-2015 MY Sorento vehicles, manufactured from December 17, 2012 through December 11, 2014, 2014-2017 MY Cadenza vehicles, manufactured from February 1, 2013 through July 12, 2017, and 2015-2016 MY Sedona vehicles, manufactured from July 21, 2014 through March 17, 2016. This will extend the warranty from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service

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