{"nhtsa_id":10123503,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-17","date":"2015-09-28","document_id":"GCUS-3-302","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"15535 - Customer Satisfaction Program. Certain 2015 model year Chevrolet Silverado Crew Cab vehicles with Special Service Package (RPO 5W4) and with a 170 amp generator (RPO KW7) may have been built with a 150 amp generator (RPO KG4). As a result the charging system is undersized. This generator substitution could result in a lower battery state of charge during periods of continuous high electrical load. Dealers are to inspect and replace the generator if necessary.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10123503-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10123503-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10123503","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2015,"year_to":2015,"match":"base","vehicle_ids":["2015_chevrolet_silverado"]}],"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":[]}