{"nhtsa_id":10201323,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-09-13","date":"2021-08-20","document_id":"PIP5817","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Preliminary information communicates to the dealers information related to a hot idle tick noise from the engine. Testing to isolate the noise to the upper engine / valve train and repair recommendations related to valve train components.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201323-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10201323-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10201323","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2021,"year_to":2021,"match":"base","vehicle_ids":["2021_gmc_sierra"]}],"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":[]}