Maserati Ghibli 2004–2024 — technical service bulletin
Bulletin MAS004833 DS 25-26 · NHTSA communication 11021166 · issued Jul 31, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2004–2024
model years
46
vehicle entries
Official summary
This bulletin provides a corrective procedure for addressing false knock sensor DTCs caused by moisture accumulation. The procedure involves performing a controlled warm-up cycle to burn off the moisture from the sensor area, helping to resolve DTCs such as P0327, P0332, P032C, and P033C without unnecessary sensor replacement. Models Involved: (M156) Quattroporte, (M157) Ghibli, (M161) Levante (V6 & V8 engines) ALL MY
Vehicles covered
- 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
- 2014 Maserati Levante
- 2015 Maserati Levante
- 2016 Maserati Levante
- 2017 Maserati Levante
- 2018 Maserati Levante
- 2019 Maserati Levante
- 2020 Maserati Levante
- 2021 Maserati Levante
- 2022 Maserati Levante
- 2023 Maserati Levante
- 2024 Maserati Levante
- 2017 Maserati Levante S
- 2004 Maserati Quattroporte
- 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
- 2014 Maserati Quattroporte GTS
- 2005 Maserati Quattroportes
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.