{"nhtsa_id":10236803,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-05-30","date":"2023-04-13","document_id":"9100159","mfr_campaign":null,"replaces":null,"component":"STRUCTURE; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"engine mount / heat shield Before replacing the engine mounts or engine heat shields for humming, droning, moaning, or grinding type noise, verify the noise is not coming from the transfer case or rear driveshaft center bearing. Follow the diagnostic procedure outlined in the latest version of Star Online Publication S2303000001 prior to any repair.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10236803-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10236803-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10236803","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_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":[]}