Kia Optima 2011–2014 — technical service bulletin
Bulletin PI1803_TSB_R6 · NHTSA communication 10199451 · issued Jul 23, 2021
Technical service bulletin
communication type
Equipment
component
2011–2014
model years
10
vehicle entries
Official summary
TECHNICAL SERVICE BULLETIN - PRODUCT IMPROVEMENT CAMPAIGN PI1803_TSB_R6: KNOCK SENSOR DETECTION SYSTEM - ECU - LOGIC IMPROVEMENT (PI1803) - This bulletin 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.