Volkswagen ID.4 2021 — technical service bulletin
Bulletin TT 66 21 01 · NHTSA communication 10201480 · issued Sep 3, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
1
vehicle entries
Official summary
Denotes proper installation of roof rack.
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.