🧪 Community source
FSD
FSD
FSD v14.3.13: user reports unexpected lane change in tunnel
Unconfirmed: the owner of a 2026 Tesla Model 3 Premium AWD with HW4 describes odd FSD behavior after updating to v14.3.13 the previous week. During a weekend trip from Philadelphia to Pittsburgh, they say that in a tunnel with a double solid white line the vehicle made a lane change they did not expect. According to the account, it happened only once; other tunnels and the return trip were uneventful. As a second point, they describe very inconsistent vehicle movement, although the available text cuts off before giving details.…
- User reports a lane change in a tunnel with a double solid white line.
- Same Philadelphia–Pittsburgh trip; other tunnels and the return drive reported without incidents.
🔎 Why it matters: There is no official confirmation from Tesla. The claim is an unrequested lane change with FSD v14.3.13 in a tunnel with a double solid white line, in a single episode according to the user, after a recent update.
📈 Upside: Not applicable.
📉 Risk: If the lane change repeats, it would mean crossing a double solid white line in a tunnel, and the text does not say how the maneuver ended.
🤖 Editorial summary of the cited source, with AI-assisted analysis -- not HgYperDrive original reporting. The original source is linked above for verification. More on how this works: editorial policy →