PRODUCT IMPROVEMENT CAMPAIGN (PI1803) - OWNER LETTER - Dear Kia Sorento Owner: Kia Motors America, Inc. is conducting an important Product Improvement Campaign to perform a software update on 2012-2014 MY Sorento vehicles equipped with 2.4L Gasoline Direct Injection (?GDI?) engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (?ECU?).
