Land Rover Defender 2021 — technical service bulletin
Bulletin N578NAS2 · NHTSA communication 10202014 · issued Sep 27, 2021
Technical service bulletin
communication type
Electrical System
component
2021
model years
5
vehicle entries
Official summary
NON-START
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.