{"nhtsa_id":10226381,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-11-21","date":"2022-10-18","document_id":"PIP5887","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary information communicates the possibility of a normal balance shaft gear whine noise to exist in the engine and is normally most audible at or above 1500rpm. This noise does not create any reliabilty or durability issues with the engine.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10226381-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10226381-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10226381","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"CT4","year_from":2022,"year_to":2023,"match":"exact","vehicle_ids":["2022_cadillac_ct4","2023_cadillac_ct4"]},{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_chevrolet_silverado","2023_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_chevrolet_silverado","2023_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_chevrolet_silverado","2023_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_gmc_sierra","2023_gmc_sierra"]},{"make":"GMC","model":"SIERRA 2500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_gmc_sierra","2023_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_gmc_sierra","2023_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":[]}