{"nhtsa_id":11021165,"type":"other","type_name":"Other","date_added":"2025-08-01","date":"2025-07-31","document_id":"MAS004832 DS 25-25","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This bulletin provides diagnostic guidance for resolving misfire-related engine warning lights (MIL) that are isolated to one bank of cylinders. In many cases, these conditions are caused by improperly torqued ignition coil ground connections. Proper inspection and torque verification can prevent unnecessary repairs and reduce vehicle downtime. Models: Quattroporte (M156), Ghibli (M157), Levante (M161) – V6 and V8 engines (ALL MY)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021165-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11021165-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11021165","components":[],"codes":[],"topics":[],"vehicles":[{"make":"MASERATI","model":"GHIBLI","year_from":2014,"year_to":2024,"match":"exact","vehicle_ids":["2014_maserati_ghibli","2015_maserati_ghibli","2016_maserati_ghibli","2017_maserati_ghibli","2018_maserati_ghibli","2019_maserati_ghibli","2020_maserati_ghibli","2021_maserati_ghibli","2022_maserati_ghibli","2023_maserati_ghibli","2024_maserati_ghibli"]},{"make":"MASERATI","model":"LEVANTE","year_from":2014,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"MASERATI","model":"LEVANTE","year_from":2017,"year_to":2024,"match":"exact","vehicle_ids":["2017_maserati_levante","2018_maserati_levante","2019_maserati_levante","2020_maserati_levante","2021_maserati_levante","2022_maserati_levante","2023_maserati_levante","2024_maserati_levante"]},{"make":"MASERATI","model":"LEVANTE S","year_from":2017,"year_to":2017,"match":"base","vehicle_ids":["2017_maserati_levante"]},{"make":"MASERATI","model":"QUATTROPORTE","year_from":2004,"year_to":2004,"match":null,"vehicle_ids":[]},{"make":"MASERATI","model":"QUATTROPORTE","year_from":2005,"year_to":2024,"match":"exact","vehicle_ids":["2005_maserati_quattroporte","2006_maserati_quattroporte","2007_maserati_quattroporte","2008_maserati_quattroporte","2009_maserati_quattroporte","2010_maserati_quattroporte","2011_maserati_quattroporte","2012_maserati_quattroporte","2013_maserati_quattroporte","2014_maserati_quattroporte","2015_maserati_quattroporte","2016_maserati_quattroporte","2017_maserati_quattroporte","2018_maserati_quattroporte","2019_maserati_quattroporte","2020_maserati_quattroporte","2021_maserati_quattroporte","2022_maserati_quattroporte","2023_maserati_quattroporte","2024_maserati_quattroporte"]},{"make":"MASERATI","model":"QUATTROPORTE GTS","year_from":2014,"year_to":2014,"match":"base","vehicle_ids":["2014_maserati_quattroporte"]},{"make":"MASERATI","model":"QUATTROPORTES","year_from":2005,"year_to":2005,"match":"base","vehicle_ids":["2005_maserati_quattroporte"]}],"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":[]}