{"nhtsa_id":10127228,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-01-22","date":"2015-09-25","document_id":"PIP5021G","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","mfr_system":null,"summary":"This Preliminary Information communication advises the technician that the Allison 6 Speed Automatic Transmission Assembly Regular Production Option Code MW7 been placed on restriction through General Motors Product Quality Center. Dealer will need to call General Motors Product Quality Center for further assistance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10127228-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10127228-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10127228","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2015,"year_to":2016,"match":"base","vehicle_ids":["2015_chevrolet_silverado","2016_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 2500","year_from":2015,"year_to":2016,"match":"base","vehicle_ids":["2015_gmc_sierra","2016_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2015,"year_to":2016,"match":"base","vehicle_ids":["2015_gmc_sierra","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":[]}