Volkswagen Tiguan 2026 — service campaign
Bulletin Circular 24TT_20260421 · NHTSA communication 11032212 · issued Apr 21, 2026
Service campaign
communication type
Engine
component
2026
model years
1
vehicle entries
Official summary
Under this service action, updated engine control module (ECM) software will be installed to provide robustness improvements to the ECM calibration for the turbocharger variable turbine geometry (VTG) actuator endpoints. This has no impact on vehicle emissions. Updated affected vehicles chart. Added note to the work instructions regarding fault code P160900.
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.