Tesla Model 3 2020 — technical service bulletin
Bulletin SB-20-16-004 · NHTSA communication 10177031 · issued Jun 23, 2020
Technical service bulletin
communication type
Electrical System
component
2020
model years
2
vehicle entries
Official summary
Certain Model 3 and Model Y vehicles may have a loosened fastener inside the HV battery assembly, which could cause the HV battery to power down.
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.