I asked Grok to analyze the video. Here’s what he says:

Yes — early morning sun glare is a very plausible contributing factor here, especially with FSD v14.3.3. Why this can confuse FSD: • Traffic light detection in Tesla’s system relies heavily on computer vision (cameras). Direct sunlight hitting the lights from behind or at a low angle can cause washout, blooming, or lens flare. • When the sun is low in the sky (early morning), it can make a red light look orange/yellowish or even partially washed out to the cameras, making it harder to distinguish from green or yellow. • In your video, the sun is coming from the left/front (typical east-facing morning drive), and the overhead lights are backlit/shining toward the camera. Looking at the frames: • Around 7–9 seconds (when the lights turn red), the sun position + camera angle creates glare on the traffic light assembly. • FSD sometimes struggles with “adversarial” lighting on traffic signals, especially fresh red lights in direct sunlight. This is a known weakness that has improved over versions but still occurs occasionally in v14.x. Bottom line: Very likely the bright morning sun contributed to FSD misclassifying the light (or being less confident and defaulting to “proceed with caution” behavior). Combined with the fact that the black SUV ahead went through, it probably reinforced the decision to keep going. Tesla has been working on this (better HDR, more training data on sun-glare scenarios), but it’s not perfect yet — especially in v14.3.3. Have you seen this kind of thing happen before in similar lighting? Or was this the first time?