Volkswagen Jetta 2009 — technical service bulletin
Bulletin TB011334 · NHTSA communication 10241299 · issued Oct 24, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2009
model years
3
vehicle entries
Official summary
Update Programming ECM for AC Cooling Efficiency
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.