Volkswagen Touareg 2009–2012 — technical service bulletin
Bulletin Circular 23EM · NHTSA communication 10228693 · issued Dec 20, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2009–2012
model years
3
vehicle entries
Official summary
SERV_ACT - Engine Control Module (ECM) Software
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.