{"nhtsa_id":10227967,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-12-19","date":"2022-04-20","document_id":"9004516","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SEAT HEATER:MAT","mfr_system":null,"summary":"ELEMENT, Heated Seat, Seat Back (2nd row) Before deciding to replace the heater mat, please check heater mat resistances at the pigtail: - Between pin 1-4: (3.07 to 3.75 Ohms) - Between pin 2-3: (9kOhms - 11 kOhm) Also, check heater mat connection to seat harness. For WL (Grand Cherokee L and Grand Cherokee) equipped with this heater mat that require replacement. DO NOT tear off the heater mat from the foam cushion, instead the whole foam-heater mat assembly must be replaced. Please send back heater mat to Quality team at Stellantis. In case of questions please contact: FCA Redacted Content","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10227967-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10227967-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10227967","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_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":[]}