Land Rover Defender 2021 — technical service bulletin
Bulletin NAS21.12.008 · NHTSA communication 10206253 · issued Dec 15, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
5
vehicle entries
Official summary
Emission recall n620 - electric supercharger - intermittent operation
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.