{"nhtsa_id":11036404,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-08-27","date":"2026-08-26","document_id":"A26-005","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Service Bulletin - Under certain conditions, the cylinder head gasket effectiveness may be reduced which may cause vehicles to experience overheating, coolant loss, misfire and/or DTCs P0300 thru P0304 stored.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036404-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036404-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036404","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0300","P0304"],"topics":[],"vehicles":[{"make":"HONDA","model":"ACCORD","year_from":2023,"year_to":2026,"match":"exact","vehicle_ids":["2023_honda_accord","2024_honda_accord","2025_honda_accord","2026_honda_accord"]}],"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":[]}