PRODUCT IMPROVEMENT CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Product Improvement Campaign to perform a software update to the Engine Control Unit (ECU) to protect the engine from excessive connecting rod bearing damage on 2017-2019 MY Kia Soul vehicles equipped with 2.0-liter Nu GDI engines, manufactured from July 29, 2016 through December 21, 2018.