{"nhtsa_id":620991,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-09-05","date":"2001-07-23","document_id":"01141","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT INADVERTENT 4X4 HI OR LOW SHIFT EVENTS, 4X4 AND / OR LOW RANGE INDICATOR FLASHING OR SOLID OR VEHICLE STUCK IN 4L AFTER UNCOMMANDED SHIFT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/620991","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"EXPEDITION","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_ford_expedition","2000_ford_expedition","2001_ford_expedition"]},{"make":"FORD","model":"F-150","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_ford_f-150","2000_ford_f-150","2001_ford_f-150"]},{"make":"FORD","model":"F-250","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_ford_f-250"]},{"make":"LINCOLN","model":"NAVIGATOR","year_from":1999,"year_to":2001,"match":"exact","vehicle_ids":["1999_lincoln_navigator","2000_lincoln_navigator","2001_lincoln_navigator"]}],"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":[]}