{"nhtsa_id":10166671,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-10-28","date":"2019-09-16","document_id":"PIE0537","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a check engine lamp illuminated and DTC P0451 set.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10166671-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10166671-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10166671","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0451"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"XT4","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_cadillac_xt4","2020_cadillac_xt4"]}],"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":[]}