Land Rover Discovery 2018 — technical service bulletin
Bulletin LTB01289NAS1 · NHTSA communication 10158985 · issued Mar 13, 2019
Technical service bulletin
communication type
Power Train
component
2018
model years
2
vehicle entries
Official summary
The transmission may exhibit a harsh 4th-to-5th gear shift at speeds between 30-50 km/h and, in certain cases, the harsh gear shift may be accompanied by a transmission warning message on the Instrument Cluster (IC). Upon further diagnosis, DTC (Diagnostic Trouble Code) P07D4-07 and/or P07DF-07 may be stored in the Transmission Control Module (TCM).
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.