PRODUCT IMPROVEMENT CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that that Kia is conducting a Product Improvement Campaign to install steel reinforcement plates on the second-row seat outer rails in certain 2022-2024 MY Kia Carnival vehicles equipped with sliding and removable second-row seats (excluding SX-Prestige equipped with the second-row lounge seats). This is an update following a notice that was issued in August 2023. Kia is currently experiencing an unexpected parts supply issue which is expected to continue until the first week of October 2023. Kia is requesting that customers wait until after the first week of October before contacting an authorized Kia dealer to schedule a service appointment for this Product Improvement Campaign to be performed.