{"vehicle":{"id":"2015_honda_pilot","year":2015,"make":"Honda","model":"Pilot"},"code":"P0303","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":11028516,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-06","date":"2026-02-01","document_id":"A26-002","mfr_campaign":null,"component":"ENGINE","summary":"Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028516-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028516-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028516"},{"nhtsa_id":11022767,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-09-05","date":"2025-08-29","document_id":"A25-060","mfr_campaign":null,"component":"ENGINE","summary":"Service Bulletin - The piston ring function deteriorates due to ring wear and sticking from sludge. Oil from the crankcase adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022767-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022767-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11022767"},{"nhtsa_id":11021759,"type":"other","type_name":"Other","date_added":"2025-08-08","date":"2025-07-29","document_id":"ONL6Z6072025","mfr_campaign":null,"component":"ENGINE","summary":"Owner Notification Letter - the piston ring function can deteriorate due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the Malfunction Indicator Lamp (MIL) to come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021759-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021759-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021759"},{"nhtsa_id":11020824,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-23","date":"2025-07-18","document_id":"A25-060","mfr_campaign":null,"component":"ENGINE","summary":"Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020824-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020824-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020824"}],"url":"https://open.wenmarpro.com/makes/honda/pilot/2015/bulletins?code=P0303"},"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/honda/pilot/2015/codes/P0303","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."]}