Kia Optima 2014–2017 — technical service bulletin
Bulletin VPI1802_TSB_R4 · NHTSA communication 10152903 · issued Dec 12, 2018
Technical service bulletin
communication type
Electrical System
component
2014–2017
model years
11
vehicle entries
Official summary
PRODUCT IMPROVEMENT CAMPAIGN - This TSB has been revised to include additional information. 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.