{"nhtsa_id":10126147,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-12-22","date":"2016-08-17","document_id":"GCUS-3-653","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:12V/24V/48V BATTERY","mfr_system":null,"summary":"42230 - Service Update Bulletin. Vehicles built with a 220 amp (KW5) generator were improperly calibrated with a Non-RVC (Regulated Voltage Control) calibration. The 220 amp generator operating without the RVC calibration does not provide optimal charging performance and in certain conditions may not fully charge the vehicle?s battery.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10126147-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10126147-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10126147","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_gmc_savana"]}],"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":[]}