{"nhtsa_id":631191,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-05-21","date":"2002-04-12","document_id":"ITB02020","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A STEADY, RHYTHMIC STATIC NOISE HEARD FROM THE SPEAKERS THAT FOLLOWS ENGINE SPEED ON CERTAIN FM RADIO STATIONS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/631191","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"INFINITI","model":"QX4","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_infiniti_qx4"]}],"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":[]}