{"nhtsa_id":10084372,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-11-17","date":"2016-07-28","document_id":"L-SB-0015-16 REV","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"TSB: REV1 WARRANTY INFORMATION HAS BEEN UPDATED. SOME 2011 – 2012 CT 200H VEHICLES MAY EXHIBIT A VIBRATION DUE TO ROUGH IDLE AND/OR TAPPING NOISE FROM HV TRANSAXLE AT COLD START. THE CHECK ENGINE LIGHT MAY ALSO ILLUMINATE WITH (DTC) P0401 (EXHAUST GAS RECIRCULATION FLOW INSUFFICIENT DETECTED). DUE TO EXCESS CARBON BUILD-UP AT THE VALVE ASSEMBLY, THE VALVE WILL STICK CAUSING THE ENGINE RPM TO FLUCTUATE. FOLLOW THE PROCEDURES IN THIS BULLETIN TO ADDRESS THIS CONDITION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10084372","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"egr-valve","name":"EGR valve","parent":"exhaust-emissions"}],"codes":["P0401"],"topics":[],"vehicles":[{"make":"LEXUS","model":"CT HYBRID","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]}],"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":[]}