Land Rover Defender 2020–2022 — technical service bulletin
Bulletin SFCC_MAR2022_36 · NHTSA communication 10210001 · issued Mar 17, 2022
Technical service bulletin
communication type
Power Train
component
2020–2022
model years
3
vehicle entries
Official summary
Overheat Warning on Highway
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.