Tesla Model 3 2019 — technical service bulletin
Bulletin SB-20-50-001 · NHTSA communication 10172381 · issued Feb 11, 2020
Technical service bulletin
communication type
Equipment
component
2019
model years
3
vehicle entries
Official summary
Certain Model 3, Model S, and Model X vehicles were equipped with 2nd generation Universal Mobile Connector (UMC) inline units having a proximity circuit resistor that is out of specification. This resistor within the affected UMC inline unit might prevent charging, might interrupt charging while in progress, and might affect the functionality of the UMC charge handle button when disconnecting the charge handle from the vehicle charge port.
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.