{"nhtsa_id":10005101,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-01-30","date":"2003-01-14","document_id":"011403","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"DIAGNOSTIC TROUBLE CODE P0503, VEHICLE SPEED SENSOR CIRCUIT INTERMITTENT. CUSTOMER MAY DESCRIBE THE CONDITION AS THE SPEEDOMETER INTERMITTENTLY GOES TO ZERO, THE VEHICLE MAY JERK AT TIMES, THEY ARE UNABLE TO SET THE CRUISE, THE CRUISE MAY INTERMITTENTLY DROPOUT. GM VOICEMAIL EXPRESS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10005101","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0503"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"DEVILLE","year_from":2003,"year_to":2003,"match":"exact","vehicle_ids":["2003_cadillac_deville"]},{"make":"CADILLAC","model":"SEVILLE","year_from":2003,"year_to":2003,"match":"exact","vehicle_ids":["2003_cadillac_seville"]}],"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":[]}