{"nhtsa_id":10194674,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-06-02","date":"2021-05-28","document_id":"PI2101_TSB_R1","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"TECHNICAL SERVICE BULLETIN - PRODUCT IMPROVEMENT CAMPAIGN PI2101 - THETA 2.4L MPI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2101) - 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.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194674-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194674-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10194674","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"SORENTO","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_kia_sorento"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}