{"vehicle":{"id":"2011_kia_optima","year":2011,"make":"Kia","model":"Optima"},"code":"P0456","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10186044,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-02","date":"2021-01-12","document_id":"TSB_FUE049","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT","summary":"TECHNICAL SERVICE BULLETIN: COMBINATION TSB / SERVICE ACTION: AIR FILTER AND NVLD REPLACEMENT (SA447) - This bulletin provides the procedure to perform an evaporative leak test and replace the Fuel Tank Air Filter, and, if necessary, the Natural Vacuum Leak Detector (NVLD) on some 11-16MY Kia vehicles listed in the table below, which may experience an evaporative leak concern with DTC P0456.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186044-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186044-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10186044"},{"nhtsa_id":10109813,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-02","date":"2017-01-18","document_id":"PS469","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","summary":"PITSTOP: MANUAL EVAPORATIVE EMISSIONS TEST FOR HARD TO FIND/SMALL LEAKS - If the malfunction indicator lamp (MIL) is illuminated with DTC(s) P0442, P0455, P0456, or P0457 (Evaporative Emissions System-Leak detected) and the evaporative (EVAP) leak self-test resulted in NTF, a manual EVAP test is recommended.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10109813-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10109813-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10109813"},{"nhtsa_id":10109658,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-02","date":"2014-05-22","document_id":"PS322","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","summary":"PIT STOP: DTC P0456 AND CHARCOAL CANISTER LEAKS - When addressing a concern related to a DTC P0456 (Evaporative Emissions System ? Small Leak Detected), and an inspection of the vapor lines, connections and fuel cap reveal no abnormalities, closely inspect the mounting holes of the charcoal canister for visible cracks.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10109658-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10109658-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10109658"}],"url":"https://open.wenmarpro.com/makes/kia/optima/2011/bulletins?code=P0456"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/kia/optima/2011/codes/P0456","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}