Land Rover Defender 2019–2021 — technical service bulletin
Bulletin SFCC_MAR2021_33 · NHTSA communication 10190067 · issued Mar 16, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
9
vehicle entries
Official summary
The Check Engine MIL is illuminated.
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.