{"nhtsa_id":11010513,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-11-13","date":"2024-11-07","document_id":"PI2104YZ_TSB_R1","mfr_campaign":"PI2104Y/Z","replaces":null,"component":"ENGINE","mfr_system":"Subsequent Repair Action","summary":"TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2104Y/Z) - 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 the Technical Service Bulletin previously published in (PI2104) titled “Knock Sensor Detection System - ECU Logic Improvement” for 2014-2016MY Optima (TF HEV) vehicles equipped with Theta 2.4L MPI engine, produced from December 11, 2013 through July 22, 2015. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11010513-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11010513-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11010513","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P1326"],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA HYBRID","year_from":2014,"year_to":2016,"match":"base","vehicle_ids":["2014_kia_optima","2015_kia_optima","2016_kia_optima"]}],"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":[]}