Alfa Romeo 4C 2012–2021 — technical service bulletin

Bulletin S1821000001 · NHTSA communication 10221150 · issued Apr 16, 2021

Technical service bulletin

communication type

Power Train

component

2012–2021

model years

vehicle entries

Official summary

Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders

Vehicles covered

2014 Alfa Romeo 4C
2015 Alfa Romeo 4C
2016 Alfa Romeo 4C
2015 Alfa Romeo 4C Spider
2016 Alfa Romeo 4C Spider
2017 Alfa Romeo 4C Spider
2018 Alfa Romeo 4C
2017 Alfa Romeo Giulia
2018 Alfa Romeo Giulia
2019 Alfa Romeo Giulia
2020 Alfa Romeo Giulia
2021 Alfa Romeo Giulia
2017 Alfa Romeo Stelvio
2018 Alfa Romeo Stelvio
2019 Alfa Romeo Stelvio
2020 Alfa Romeo Stelvio
2021 Alfa Romeo Stelvio
2012 Chrysler 200
2013 Chrysler 200
2014 Chrysler 200
2015 Chrysler 200
2016 Chrysler 200
2017 Chrysler 200
2018 Chrysler 200
2012 Chrysler 300
2013 Chrysler 300
2014 Chrysler 300
2015 Chrysler 300
2016 Chrysler 300
2017 Chrysler 300
2018 Chrysler 300
2019 Chrysler 300
2020 Chrysler 300
2021 Chrysler 300
2020 Chrysler 300 AWD
2021 Chrysler 300 AWD
2012 Chrysler 300C
2013 Chrysler 300C
2014 Chrysler 300C
2015 Chrysler 300C
2016 Chrysler 300C
2017 Chrysler 300C
2012 Chrysler Grand Voyager
2013 Chrysler Grand Voyager
2015 Chrysler Grand Voyager
2016 Chrysler Grand Voyager
2016 Chrysler Pacifica
2017 Chrysler Pacifica
2018 Chrysler Pacifica
2019 Chrysler Pacifica
2020 Chrysler Pacifica
2021 Chrysler Pacifica
2017 Chrysler Pacifica Plug-In Hybrid
2018 Chrysler Pacifica Plug-In Hybrid
2019 Chrysler Pacifica Plug-In Hybrid
2020 Chrysler Pacifica Plug-In Hybrid
2012 Chrysler Sebring
2013 Chrysler Sebring
2012 Chrysler Town and Country
2013 Chrysler Town and Country

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.