{"nhtsa_id":10135421,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-07","date":"2018-03-08","document_id":"1HDM8U7G04","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"SERVICE BULLETIN M1391A: MIDTRONICS GRX-3110 SOFTWARE UPDATE. The purpose of this bulletin is to inform the dealer network that a software update to the HD BATTERY DIAGNOSTIC STATION (PART NUMBER: GRX-3110HD) is now available. This update addresses a print issue discovered in the Japan market. Also, there is an update to the alpha numeric key pad to make it more consistent when entering a VIN (Vehicle identification number) and battery date code.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10135421-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10135421-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10135421","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"HARLEY-DAVIDSON","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}