Land Rover Discovery 2018 — technical service bulletin
Bulletin SSM74052 · NHTSA communication 10146410 · issued Aug 28, 2018
Technical service bulletin
communication type
Electrical System
component
2018
model years
4
vehicle entries
Official summary
"SOS Limited Availability" warning is displayed on IC (Instrument Cluster along with Diagnostic Trouble Code (DTC) U3000-49 logged in the TCU (telematics Control Unit)).
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.