Volkswagen Jetta Hybrid 2013–2016 — technical service bulletin
Bulletin TT 37-16-01 · NHTSA communication 10121129 · issued Feb 19, 2016
Technical service bulletin
communication type
Power Train
component
2013–2016
model years
4
vehicle entries
Official summary
Mechatronics unit or Transmission replacement tips (including DTC P309D) after the KO Clutch Line is Opened for Service
Vehicles covered
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.