{"nhtsa_id":10152311,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-17","date":"2015-04-01","document_id":"B611808","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Battery Maintenance Requirements: Battery Care. Proper battery maintenance is vital when BMW vehicles are in your center's inventory. Allowing a vehicle's battery voltage to drop below 12.0 volts (12.0V) permanently reduces the battery life expectancy and can lead to premature failure of the battery. For vehicles, equipped with a high-voltage battery (hybrid/electric vehicles), failure to properly maintain this battery may lead to a greatly discharged HV battery, requiring replacement. We provide a flexible battery maintenance system every BMW center can use in accordance with their particular needs. This bulletin explains the Battery Charging Calendar (see attachment), charging systems and a simplified tool and battery voltage checking procedure below.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10152311-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10152311-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10152311","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"K SERIES","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":[]}