{"nhtsa_id":10187348,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-22","date":"2020-12-21","document_id":"N202321920","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187348-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187348-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187348","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"XT4","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_xt4"]},{"make":"CADILLAC","model":"XT5","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_cadillac_xt5"]},{"make":"CHEVROLET","model":"BLAZER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_chevrolet_blazer"]},{"make":"GMC","model":"ACADIA","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_gmc_acadia"]}],"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":[]}