Land Rover Defender 2021–2023 — technical service bulletin
Bulletin SSM76002 · NHTSA communication 10237556 · issued May 24, 2023
Technical service bulletin
communication type
Back Over Prevention
component
2021–2023
model years
9
vehicle entries
Official summary
Add 1.0 litre/quart of engine oil - Information Message Displayed In The Instrument Panel Cluster
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.