{"nhtsa_id":606170,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-08-11","date":"1999-06-04","document_id":"210999","mfr_campaign":null,"replaces":"211798","component":"POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)","mfr_system":null,"summary":"CONCERNS WITH SHUDDER NOISE PRESENT IN TRANSFER CASE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/606170","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"transfer-case","name":"Transfer case","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_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":[]}