Land Rover Defender 2019–2021 — technical service bulletin
Bulletin SFCC_OCT2020_37 · NHTSA communication 10182347 · issued Oct 9, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2021
model years
8
vehicle entries
Official summary
The Charge Warning message is on. The Check Engine Lamp 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.