{"nhtsa_id":10187231,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-16","date":"2021-01-19","document_id":"N202316130","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr_system":null,"summary":"Service Update - Certain 2021 model year Cadillac Escalade and Escalade ESV vehicles, equipped with the Cadillac User Experience infotainment system may have a condition where, during a secondary or backup emergency call, customers might complain it is difficult to hear the OnStar advisor. A volume boost calibration for emergency calls was incorrectly set to 0 instead of +16 as expected. This results in the secondary call being 10 db below requirement. Dealers will reprogram the radio with the latest calibrations.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10187231-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10187231-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187231","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_escalade-esv"]},{"make":"CADILLAC","model":"ESCALADE NA","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_cadillac_escalade"]}],"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":[]}