Land Rover Range Rover Sport 2019–2020 — technical service bulletin
Bulletin BIG5_JAN_41b · NHTSA communication 10171138 · issued Jan 21, 2020
Technical service bulletin
communication type
Power Train
component
2019–2020
model years
2
vehicle entries
Official summary
OBD system software update is required as vehicles may contain software which prevents the successful completion of OBD readiness tests
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.