Mercedes-Benz AMG GLS63 2016–2018 — technical service bulletin
Bulletin SC-2020090003 · NHTSA communication 10181203 · issued Sep 25, 2020
Technical service bulletin
communication type
Fuel System, Gasoline
component
2016–2018
model years
8
vehicle entries
Official summary
Replace tank filler recess and information labels
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.