{"nhtsa_id":10190398,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-19","date":"2021-03-12","document_id":"PIC6433","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE","mfr_system":null,"summary":"This Preliminary information communicates that a service theft deterrent message may display with no DTC's. OnStar will turn of the ECM read request to prevent re-occurrence.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10190398-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10190398-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10190398","components":[{"id":"engine","name":"Engine","parent":null},{"id":"engine-control-module","name":"Engine control module","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"CT4","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_ct4"]},{"make":"CADILLAC","model":"CT5","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_ct5"]}],"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":[]}