Land Rover Discovery 2017–2020 — technical service bulletin
Bulletin SSM74553 · NHTSA communication 10165952 · issued Sep 23, 2019
Technical service bulletin
communication type
Electrical System
component
2017–2020
model years
4
vehicle entries
Official summary
Due to insufficient ground contact at G4D178 Battery earth stud, various fault codes may appear and symptoms related to voltage drop, high ground point resistance and power supply. Symptoms such as non or intermittent start or engine cut-out may be reported.
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.