Tesla Model 3 2017 — technical service bulletin
Bulletin SB-18-16-001 R1 · NHTSA communication 10142984 · issued Feb 7, 2018
Technical service bulletin
communication type
Electrical System
component
2017
model years
1
vehicle entries
Official summary
On certain Model 3 vehicles, specific issues with the power conversion system (PCS) might prevent contactors from closing or cause the PCS E-fuse circuit to trip, leading to inability to recharge the 12V battery.
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.