Tesla FSD v14.3.9 Rolls Out With a New Active Safety Layer
As seen on the 24/7 Wall St. homepage on September 14, 2026.
Musk is amplifying a new active-safety layer in FSD just as NHTSA widens its crash investigation into the same system, making this release the clearest read yet on how Tesla answers regulators.
RT @Tesla_AI: FSD Supervised v14.3.9 starting to roll out shortly This release includes a new active safety feature set: FSD Supervised ca…
- Replies0
- Reposts1.3K
- Likes0
Continue ReadingShow less
Tesla's Full Self-Driving software is moving to version 14.3.9, and the headline feature is a new active safety set built into FSD Supervised.
Elon Musk retweeted the announcement from the @Tesla_AI account on September 14, 2026, amplifying it at a moment when scrutiny of FSD is unusually high.
Sponsored
Don't wait: the analyst who called NVIDIA in 2010 just revealed his top 10 AI stocks. See the full list FREE now.
The commentary accompanying this post notes that NHTSA has widened its crash investigation into FSD Supervised, making this release the clearest public signal yet of how Tesla intends to respond to regulators.
For investors, the question is whether v14.3.9's safety framing is enough to satisfy federal investigators or whether the probe advances regardless. The full release notes were truncated in the original post, so the scope of the new safety feature set remains to be seen.
Mentioned: TSLA