{"nhtsa_id":10135433,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-07","date":"2016-07-29","document_id":"GCUS-3-632","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"44120 - Customer Satisfaction Program - Certain vehicles, equipped with an 8-speed automatic transmission, may have a condition in which the 2-3-4-6-8 Clutch Piston is out of specification. Parts as installed exhibited a crack condition as cast after machining. As a result the vehicle could exhibit 1-2 upshift slipping or a flaring condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10135433-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10135433-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10135433","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"CT6","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_cadillac_ct6"]},{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2016,"year_to":2016,"match":"base","vehicle_ids":["2016_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":[]}