Tesla Model 3 2017–2018 — technical service bulletin
Bulletin SB1817012 · NHTSA communication 10148849 · issued Oct 20, 2018
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
2
vehicle entries
Official summary
Some Model 3 vehicles might have been manufactured with the C-pillar electrical harness(es) routed incorrectly, causing a gap between the upper C-pillar trim and side rail trim.
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.