Tesla Model 3 2018 — technical service bulletin
Bulletin SB-18-16-017 · NHTSA communication 10153850 · issued Dec 19, 2018
Technical service bulletin
communication type
Electrical System
component
2018
model years
1
vehicle entries
Official summary
The cooling tubes inside the HV battery were not brazed to Tesla?s internal standards. This condition might result in a reduction of vehicle driving range.
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.