Volkswagen Jetta Hybrid 2013–2014 — technical service bulletin
Bulletin V011338 2034844 · NHTSA communication 10155980 · issued Dec 17, 2013
Technical service bulletin
communication type
Electrical System
component
2013–2014
model years
2
vehicle entries
Official summary
Technical Bulletin (Update Programming for Sporadic Misfire Faults): During normal operation of the Jetta Hybrid, the electric drive motor will be activated as a generator to charge the High Voltage Battery. Once the High Voltage battery has reached a 100% state of charge, the regenerative function will shut off and the electric drive motor load will be released. Under certain driving conditions, this release of load from the engine can result in sporadic misfire faults storing in the Engine Control Module fault memory. This software update is designed to re-program the ECM, Power Electronics
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.