{"nhtsa_id":10137420,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2018-03-16","document_id":"18NA087","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:HORN; EQUIPMENT:ELECTRICAL","mfr_system":null,"summary":"This informational bulletin provides information on Phantom Three Beeps or Horn Chirps Heard After Turning Off Vehicle and that it should be considered normal.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137420-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137420-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10137420","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENVISION","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_buick_envision","2017_buick_envision","2018_buick_envision"]},{"make":"CADILLAC","model":"ATS","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_cadillac_ats","2017_cadillac_ats","2018_cadillac_ats"]},{"make":"CADILLAC","model":"CT6","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_cadillac_ct6"]},{"make":"CADILLAC","model":"CT6 PLUG-IN HYBRID","year_from":2017,"year_to":2018,"match":"base","vehicle_ids":["2017_cadillac_ct6","2018_cadillac_ct6"]},{"make":"CADILLAC","model":"CTS","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_cadillac_cts","2017_cadillac_cts","2018_cadillac_cts"]},{"make":"CADILLAC","model":"ESCALADE","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_cadillac_escalade","2017_cadillac_escalade","2018_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_cadillac_escalade-esv","2018_cadillac_escalade-esv"]},{"make":"CADILLAC","model":"XTS","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_cadillac_xts","2017_cadillac_xts","2018_cadillac_xts"]},{"make":"CHEVROLET","model":"CORVETTE","year_from":2016,"year_to":2017,"match":"exact","vehicle_ids":["2016_chevrolet_corvette","2017_chevrolet_corvette"]},{"make":"CHEVROLET","model":"MALIBU","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_chevrolet_malibu"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_chevrolet_suburban","2017_chevrolet_suburban","2018_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_chevrolet_tahoe","2017_chevrolet_tahoe","2018_chevrolet_tahoe"]},{"make":"CHEVROLET","model":"VOLT","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_chevrolet_volt","2017_chevrolet_volt","2018_chevrolet_volt"]},{"make":"GMC","model":"YUKON","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_gmc_yukon"]},{"make":"GMC","model":"YUKON XL","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_gmc_yukon-xl"]}],"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":[]}