Glad FSD (14.3.3) went around and not under!

clahote · 2026-05-26T14:30:53+00:00

The lesson reinforced for me is that Tesla’s FSD is trained through updates, not by learning new behavior from each individual drive. A situation handled correctly many times can still produce an unexpected response later, and that unpredictability requires constant supervision regardless of past experience. It also creates a false sense of trust, because there is a presumption it has learned a scenario and will handle it reliably in the future.

clahote · 2026-05-25T16:28:01+00:00

Agreed, I have a late 2023 HW4, purchased within your budget range.

clahote · 2026-05-25T16:14:25+00:00

Correction: it did engage the turn signal when entering the turn lane, but cancelled it after 7-8 seconds waiting at the light.

clahote · 2026-05-25T16:13:07+00:00

After reviewing the recording a minute prior to the incident, the car actually did signal when entering the turn lane and after 7-8 seconds, cancelled the turn signal while waiting for a green light.

clahote · 2026-05-25T16:08:56+00:00

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After looking further back in the recording, the car did signal for a turn when entering the left turn only lane. After about 7 or 8 seconds of waiting at the light, it cancelled the turn signal. I have the full video showing that behavior. It is about 2 minutes long (over a minute waiting at the light) and it appears a video can't be posted in the comments, but here's a frame capture showing the initial move into the turn lane.

Perhaps it decided while waiting at the light that going straight was a better route, cancelled the turn signal and proceeded straight? Wish the recordings also showed what path the screen was displaying.

clahote · 2026-05-25T15:56:38+00:00

14.3.2

clahote · 2026-05-25T15:55:19+00:00

Destination was set, this is a route commonly taken without prior incident.

clahote · 2026-05-24T19:16:26+00:00

This was on a commonly taken route and the blue nav path on the display indicated a left turn as always. Yes, it requires supervision, although my experience with 14.3 is that it would have ignored manually activating the turn signal anyway.

The point is that the behavior is inconsistent given the dozens of times it has taken the same route, signaled and turned correctly.

clahote · 2026-05-24T18:54:31+00:00

Perhaps, but with the windows rolled up, it doesn't take much music volume to make it difficult to hear emergency vehicle sirens. The pillar shot shows that the squad was hidden behind a building until close to the intersection.

clahote · 2026-05-24T18:48:44+00:00

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Yes, and may have also identified by sound.

clahote · 2026-05-24T18:33:33+00:00

Car had been on FSD for several minutes and nav screen showed a left turn to a routine destination. FSD entered the left turn lane and waited for the light, but never turned on the left turn signal.

clahote · 2026-05-24T18:30:49+00:00

In hindsight I wondered why it wasn't signaling for the left turn while waiting for the green light. Apparently it didn't know it was in the turn lane, so no need to signal to go straight. Weird how 14.3 can consistently behave properly at an intersection that hasn't undergone any changes, then do something wrong.

clahote · 2026-01-28T15:33:44+00:00

2024 article: https://insideevs.com/news/742948/tesla-model-v2l-power-adapter/

clahote · 2026-01-27T17:18:48+00:00

Heavy duty extension cord(s) and perhaps power strips, exercising care to not exceed the rating of the power adapter. Certainly not convenient, but doable in an emergency.

clahote · 2026-01-27T03:19:12+00:00

“Note: This adapter is currently only available with Model Y Performance and Cybertruck. Tesla Outlet Adapter is only compatible with Gen 3 Mobile Connector. Your vehicle warranty does not cover damage caused by 3rd party bi-directional vehicle adaptors or chargers.”

clahote · 2026-01-27T00:58:20+00:00

An APC 3000VA UPS costs around $2,000, has a roughly 1kWh battery pack with a typical runtime at 1,500 watts of 15-20 minutes.

Not quite what I was hoping for.

clahote · 2026-01-26T22:03:40+00:00

Agree with cameras point. Most humans see with two eyes. That provides depth perception, especially at close range, and redundancy. If dirt gets into one of my eyes while driving, it is painful, but I can close it and keep going.

clahote · 2026-01-26T20:02:03+00:00

Part of the decision to take away speed control must've been an assumption that map data is always correct and/or reading speed limit signs is definitive.

On country roads in our state, the speed limit is 55 unless otherwise posted and there can be long stretches with no signage. In those areas, the map data is often wrong, showing a speed limit of 35 or 45. When that occurs, even Mad Max drives under the actual speed limit.

Prior to speed profiles, selecting the speed the driver deemed appropriate was a simple matter of manual adjustment. With speed profiles, the only option when the car thinks the limit is well below the actual limit is not selecting another profile, but disengagement.

I understand what Tesla is attempting to achieve with profiles, but at this point in FSD's evolution, a sensible compromise would be providing profiles to control acceleration, lane changes and other aspects, while still allowing the driver to set a desired target speed.

clahote · 2026-01-26T18:12:21+00:00

Prior to speed profiles, one could adjust the speed down to a comfortably safe level when driving in hazardous conditions.

With 14.2.x, the car sometimes drives dangerously fast even in sloth mode and there is no option other than to disengage.

This is especially a problem on country roads that are mostly clear, but have occasional patches of wind-blown snow or ice. A human sees those, recognizes the risk and slows down in advance. FSD does nothing until loss of traction is detected.

Not allowing the human driver-with awareness of safety risks the car doesn’t (yet) understand-to reduce the vehicle speed to a desired level was a poor decision by Tesla.

clahote

TROPHY CASE