{"nhtsa_id":10134309,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-23","date":"2016-03-31","document_id":"T-SB-0027-16","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","mfr_system":null,"summary":"TSB: Some Prius, Prius V, and Prius PHV vehciles may exhibit a rough idle or tapping noise from the 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 the condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10134309-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10134309-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10134309","components":[{"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":"TOYOTA","model":"PRIUS","year_from":2010,"year_to":2012,"match":"exact","vehicle_ids":["2010_toyota_prius","2011_toyota_prius","2012_toyota_prius"]},{"make":"TOYOTA","model":"PRIUS PLUG-IN HYBRID","year_from":2010,"year_to":2010,"match":"base","vehicle_ids":["2010_toyota_prius"]},{"make":"TOYOTA","model":"PRIUS PLUG-IN HYBRID","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["2012_toyota_prius"]},{"make":"TOYOTA","model":"PRIUS V","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_toyota_prius-v"]}],"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":[]}