Land Rover Discovery 2017–2018 — technical service bulletin
Bulletin LTB01202NAS2 · NHTSA communication 10146400 · issued Aug 21, 2018
Technical service bulletin
communication type
Steering
component
2017–2018
model years
7
vehicle entries
Official summary
A 'Traction Reduced' warning message may be displayed on the Instrument Cluster and a 'juddering' noise may be heard when the steering is in the full lock position, such as during low-speed maneuvers and parking. Upon further diagnosis, the technician may find DTC (Diagnostic Trouble Code) U2000-4B stored in the Rear Differential Control Module (RDCM).
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.