Land Rover Discovery 2018–2019 — technical service bulletin
Bulletin SSM74052 · NHTSA communication 10152022 · issued Nov 9, 2018
Technical service bulletin
communication type
Electrical System
component
2018–2019
model years
8
vehicle entries
Official summary
?SOS Limited Functionality? warning is displayed on the IC (Instrument Cluster along with Diagnostic Trouble Code (DTC) U3000-49 logged in the TCU (Telematics Control Unit). SOS Limited Functionality may affect the TCU's ability to support the ECall function when required by the customer.
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.