{"nhtsa_id":10137541,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2018-04-05","document_id":"18NA104","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This informational bulletin provides information on Hoot, Whine, Buzz, Hiss Noise Coming from Vehicle After Engine is Shut Off and that its a normal condition and no parts should be replaced.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137541-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10137541-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10137541","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"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":2014,"year_to":2018,"match":"exact","vehicle_ids":["2014_cadillac_cts","2015_cadillac_cts","2016_cadillac_cts","2017_cadillac_cts","2018_cadillac_cts"]},{"make":"CADILLAC","model":"XTS","year_from":2014,"year_to":2018,"match":"exact","vehicle_ids":["2014_cadillac_xts","2015_cadillac_xts","2016_cadillac_xts","2017_cadillac_xts","2018_cadillac_xts"]}],"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":[]}