Land Rover Range Rover 2020 — technical service bulletin
Bulletin BIG5_JAN_44 · NHTSA communication 10171140 · issued Jan 21, 2020
Technical service bulletin
communication type
Power Train
component
2020
model years
2
vehicle entries
Official summary
Transmission Control Module shift adaptions software required to improve shift quality
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.