{"nhtsa_id":10019630,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2006-04-12","date":"2006-07-14","document_id":"1800906","mfr_campaign":null,"replaces":"1802306","component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"ENHANCED TORQUE CONVERTER AND GLOW PLUG OPERATION OR BRAKE SWITCH DTC P0504. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10019630","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0504"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2005,"year_to":2006,"match":"exact","vehicle_ids":["2005_jeep_grand-cherokee","2006_jeep_grand-cherokee"]},{"make":"JEEP","model":"LIBERTY","year_from":2005,"year_to":2006,"match":"exact","vehicle_ids":["2005_jeep_liberty","2006_jeep_liberty"]}],"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":[]}