{"nhtsa_id":629137,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-03-27","date":"2001-12-20","document_id":"0800401B","mfr_campaign":null,"replaces":"0800401A","component":"SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER","mfr_system":null,"summary":"ON SOME VEHICLES THE HEATED SEAT MAY BE INOPERATIVE DUE TO AN OPEN CIRCUIT IN THE SEAT CUSHION HEATING ELEMENT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/629137","components":[{"id":"seats","name":"Seats","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_jeep_grand-cherokee","2000_jeep_grand-cherokee","2001_jeep_grand-cherokee"]}],"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":[]}