Volkswagen Beetle 2018–2020 — technical service bulletin
Bulletin TT 01 18 16 · NHTSA communication 10185656 · issued Jan 15, 2021
Technical service bulletin
communication type
Equipment
component
2018–2020
model years
8
vehicle entries
Official summary
Update to address DTC U300100 after a Charging System Concern, Discharged Battery or Battery Replacement
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.