Volkswagen Jetta Hybrid 2013–2016 — technical service bulletin
Bulletin Circular 38C4 · NHTSA communication 10170643 · issued Jan 14, 2020
Technical service bulletin
communication type
Electrical System
component
2013–2016
model years
4
vehicle entries
Official summary
On affected vehicles, the mechatronic unit service replacement may have been configured with a European software calibration. If present, the European software may not detect certain faults read or stored by a diagnostic system.
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.