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December 18, 2025 Service bulletin

Engine sub assembly inspection/replacement (WTY039 - revision 7)

Kia technical service bulletin WTY039_TSB_R7 for 2014-2015 Kia Sorento, 2015-2016 Kia Sedona and 2014-2017 Kia Cadenza.

Bulletin number
WTY039_TSB_R7 (WTY039)
Component
Engine
Summary
TECHNICAL SERVICE BULLETIN: ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY039 - REVISION 7) - 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.

Owners of these vehicles have filed 1,035 complaints in the engine category.

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