FSD v14.3.4 - First Impressions Drive in the Model Y

Chuck Cook
Chuck CookJun 12, 2026

Why It Matters

The update’s UI and performance tweaks directly affect driver trust and regulatory scrutiny, shaping Tesla’s roadmap toward fully autonomous deployment.

Key Takeaways

  • Unprotected left turns feel smoother, but still require cautious monitoring.
  • New UI pop‑up confirms parking intent, reducing destination confusion.
  • FSD now announces upcoming maneuvers verbally, enhancing rider awareness.
  • Speed‑limit transitions decelerate aggressively, but accelerate sluggishly in practice.
  • Streak display gamifies disengagement, raising safety and regulatory concerns.

Summary

In this video, Tesla enthusiast Chuck returns to test the freshly released Full Self‑Driving software version 14.3.4 in his Model Y, offering a real‑time first‑impression drive through a morning rush‑hour route to Memorial Park. He walks viewers through the updated navigation data, notes the presence of new UI tags, and highlights the version’s limited headline changes beyond cosmetic tweaks. The drive showcases several functional observations: unprotected left turns execute with smoother timing and acceptable creep, while speed‑limit changes trigger aggressive deceleration but only modest acceleration. New interface elements include a parking‑intent pop‑up that clarifies whether the car will pull over or park, and a spoken announcement of upcoming maneuvers, both aimed at reducing rider uncertainty. Chuck also points out that the Cybertruck now supports smart summon, and he experiences a dynamic reroute after a waypoint error. Throughout, Chuck delivers a pointed critique of the “streak” metric displayed on the main screen, arguing that gamifying continuous disengagement may encourage unsafe behavior and could hinder regulatory approval. He contrasts this with his preference for safety‑focused UI real‑estate, noting that statistics belong on a dedicated app page rather than the driver’s primary view. The implications are clear: while FSD 14.3.4 refines certain driving scenarios, its UI choices and asymmetric speed‑limit handling raise questions about user safety and compliance. Tesla’s balance between convenience features and rigorous safety communication will likely influence both consumer confidence and the path to broader autonomous approvals.

Original Description

#FSD #Tesla #FSDBeta #FSDSupervised #Cybertruck
FSD Supervised 14.3.4 - 2026.14.6.10
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[00:00:00] FSD 14.3.4 First Impressions & New Features
[00:02:18] Executing an Unprotected Left Turn
[00:05:07] U-Turn and Speed Limit Behavior
[00:07:05] Unexpected Reroute & FSD Streak UI Critique
[00:10:10] Why "Streaks" Gamify Safety
[00:11:46] New Destination Parking Pop-up
[00:12:49] First Parking Lot Attempt
[00:15:35] School Zone Context Awareness
[00:16:24] Pilot Analogy for Safety Metrics
[00:17:41] Supercharger Parking & UI Feedback
[00:19:00] Activating Mad Max Mode & Hand Detection
[00:20:16] Mad Max Highway Lane Change Observations
[00:21:57] Improved Disengagement Screen Dismissal
[00:23:54] Mad Max in Rush Hour Traffic
[00:27:12] Mad Max Object Avoidance & Lane Selection
[00:29:05] Exiting Mad Max & Conservative Yellow Light Stop
[00:29:47] FSD Development Status & Thin Chain Test Setup
[00:30:57] Dismissing Parking Destination Pop-up
[00:32:00] Thin Chain Parking Test Failure
[00:33:12] Analyzing Thin Chain Test Limitations
[00:34:06] Second Parking Attempt at Cul-de-sac
[00:35:46] Parking in a Handicap Spot
[00:38:09] Angled Parking and Occupancy Network Issue
[00:39:34] Fascia Camera Role in Parking Accuracy
[00:42:35] Attempting Auto Park (Street Parking)
[00:43:16] Auto Parking in a "Do Not Park" Zone
[00:44:59] FSD Reasoning, Potholes & Animal Avoidance
[00:48:26] Parking at Scotty's (Improved Attempt)
[00:51:18] Discovering Auto Park Glitch
[00:52:03] Investigating the Auto Park Glitch
[00:54:58] Straight Spot Auto Park Glitch Persistence
[00:55:58] FSD Return Route & Beta Testing Insights
[00:57:44] Smart Summon: Gimmick vs. Practical Use
[01:00:27] Smart Summon Speed & Cybertruck Plans
[01:01:15] Highway Driving and FSD Safety Benefits
[01:03:52] FSD 14.3.4 Final Assessment & Conclusion

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