NHTSA Complaint #11574002 — 2019 HONDA ACCORD

11/18/22 (92,495 mi.) - All warning lights on at home and diagnosed at a Honda dealership, after daily rough idle in the mornings. Dealer diagnosed injectors had failed air/fuel test. They replaced pipe set, fuel joint and fuel injector set (all injectors). Covered under extended warranty. 11/30/22 (92, 506 mi.) - When picking up vehicle at dealership after repair, vehicle started running rough again, all diagnostic lights went on. Coolant was found leaking into cylinders when engine is cold, causing misfire. It was determined misfire caused by leaking head gasket. They replaced: head gasket, crank seal, valve coveer gasket, thermostat housing gasket and spark plugs. Covered under extended warranty. 12/18/23 (112,774 mi.) - Same failure mode appeared: all warning lights turned on, rough idle due to cylinder misfire. Took vehicle to a different Honda dealership. They verified code P0304. Cleared code, came right back. Found engine hot, coolan level empty. dry collant noticed visually on driveer side of motor, indicative of falied cylinder head gasket. Diagnosed gasket needed replacement. Currently being repaired at previous dealership.