{"nhtsa_id":10221661,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2021-07-01","document_id":"0811021","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Radio Enhancements This bulletin involves inspecting the software level and updating the software if needed. The software will be updated to R17.83. Customers may experience one or more of the following: Ticking noise coming from audio. Rear temperature bar on rear climate page disappears. Apple Carplay® not connecting to iPhone®. App crashes. Temperature and slider bars missing on comfort screen. Selectable tire fill assist does not reflect unit change if unit is changed in settings","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221661-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221661-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221661","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_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":[]}