Kia Optima 2014–2018 — technical service bulletin
Bulletin PI1802_TSB_R12 · NHTSA communication 10179250 · issued Aug 4, 2020
Technical service bulletin
communication type
Electrical System
component
2014–2018
model years
14
vehicle entries
Official summary
PRODUCT IMPROVEMENT - TSB_PI1802_R2 - Knock Sensor Detection System - ECU Logic Improvement - 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 related to a software update to the Engine Control Unit (ECU) to install the Knock Sensor Detection System (KSDS) in order to protect the engine from excessive connecting rod bearing damage.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.