Land Rover Defender 2020–2022 — technical service bulletin
Bulletin SSM75593 · NHTSA communication 10206272 · issued Dec 3, 2021
Technical service bulletin
communication type
Electrical System
component
2020–2022
model years
3
vehicle entries
Official summary
Accessory Integrated Air Compressor Error Code
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.