{"nhtsa_id":10148377,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-13","date":"2014-08-01","document_id":"651211","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; EQUIPMENT:ELECTRICAL","mfr_system":null,"summary":"Replacement HiFi Amplifier Is Not Recognized by ISTA and ISTA/P. INFORMATION When installing the new style HiFi amplifier (replacement part), the following conversion must be performed in ISTA/P: Conversion replacement HiFi loudspeaker system Note: This conversion option is only available in ISTA/P prior to the first new style HiFi amplifier installation in the affected vehicle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10148377-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10148377-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148377","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"1 SERIES M","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"528I","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_bmw_528i"]},{"make":"BMW","model":"535I","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_bmw_535i"]},{"make":"BMW","model":"535I GRAN TURISMO","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_bmw_535i","2011_bmw_535i"]},{"make":"BMW","model":"535I US","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_bmw_535i"]},{"make":"BMW","model":"550I","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_bmw_550i"]},{"make":"BMW","model":"550I GRAN TURISMO","year_from":2010,"year_to":2011,"match":"base","vehicle_ids":["2010_bmw_550i","2011_bmw_550i"]},{"make":"BMW","model":"740I US","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_bmw_740i"]},{"make":"BMW","model":"740LI","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_bmw_740li"]},{"make":"BMW","model":"750I","year_from":2009,"year_to":2011,"match":"exact","vehicle_ids":["2009_bmw_750i","2010_bmw_750i","2011_bmw_750i"]},{"make":"BMW","model":"750LI","year_from":2009,"year_to":2011,"match":"exact","vehicle_ids":["2009_bmw_750li","2010_bmw_750li","2011_bmw_750li"]},{"make":"BMW","model":"760LI","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_bmw_760li","2011_bmw_760li"]},{"make":"BMW","model":"ACTIVEHYBRID 7","year_from":2011,"year_to":2011,"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":[]}