2023 Tesla Model Y lane departure problems

“I recall Tesla Full Self-Driving (Supervised) being engaged throughout the trip. While negotiating the curved highway interchange, I experienced an unexpected, sharp steering movement toward the concrete roadway barrier that I did not intend. The vehicle collided with the barrier, multiple airbags deployed, and the vehicle sustained extensive damage, including apparent steering/suspension damage. The vehicle was rendered undrivable. I obtained the dashcam footage and Tesla's vehicle data export. The available records show self-driving features marked "Available" and "Unavailable" in the seconds preceding collision detection, with cruise control recorded as "Standby." A lane-departure/take-control warning was also recorded shortly before impact. These records raise questions about whether FSD unexpectedly disengaged, whether automated steering contributed to the vehicle's movement, and whether adequate warning was provided.”

“On October 7, 2026 at about 5:01 PM, on I-75 near Acworth, Georgia, in clear daylight, my 2023 Tesla Model Y was operating with Full Self-Driving (Supervised) engaged at about 76 mph. The vehicle moved from a general traffic lane into an express lane that was closed, and continued toward physical barricades and an impact attenuator at the end of the closed lane. At least three advance signs indicated the express lanes were closed, including an overhead gantry reading EXPRESS LANES CLOSED directly ahead, and the word EXPRESS was painted on the pavement under the vehicle. The vehicle did not slow, issued no warning or takeover request, and made no evasive maneuver. I avoided the barricades with a reflexive steering input. At that moment there was a concrete divider on my left, a tractor-trailer in the lane to my right, and, as I learned only from the footage afterwards, a vehicle following in the lane I moved into. There was no collision and no injury. Tesla's own vehicle data export confirms the sequence. The Self-Driving state was ACTIVE_FSD continuously from 3:53 PM until 5:01:09 PM, when it changed to UNAVAILABLE in the middle of a rising steering torque…”

“On 09/24/2026 at approximately 4:41 PM, my 2023 Tesla Model Y drifted toward the center divider. When I attempted to steer right, away from the divider, the steering felt locked and unresponsive, and the vehicle struck the divider at approximately 24 mph. Airbags did not deploy; no injuries. Vehicle data obtained from Tesla shows: cruise control was engaged approximately 7 seconds before impact and disengaged approximately 2 seconds before impact; about 1.5 seconds before my rightward steering correction, the steering wheel swung hard left (~24°) without driver input; I then applied rightward steering effort and the wheel turned right (up to ~91°) while I was braking; the vehicle displayed "Take control immediately — vehicle departing lane" at the moment of the event; after impact it reported "Automatic Emergency Braking is unavailable" and "Autopilot cameras unavailable." Damage was repaired at a cost of $11,467.75. I am reporting this because the steering behavior — the unexplained leftward swing and the unresponsive steering when I attempted to steer away — suggests a possible defect in the steering or lane-keeping system that could affect other vehicles.”

“Subject: Urgent Safety Defect: Post-Disengagement Touchscreen Prompt Causes Acute Driver Distraction Feature Involved: Full Self-Driving (Supervised) Post-Takeover Feedback Modal Safety Concern: When a driver manually disengages FSD (Supervised), it is almost always because the vehicle entered a complex, unexpected, or hazardous scenario that demanded immediate human intervention. At the exact second the driver assumes physical control of the vehicle—when 100% of driver visual attention and cognitive bandwidth must be on the roadway—the center display flashes a persistent multi-choice survey requesting feedback on why the disengagement occurred. The Hazard: Visual Diversion During Critical Moments: Presenting bright, interactive UI cards requiring glance time and manual touch interaction immediately after a takeover directly contradicts basic human-factors engineering and crash avoidance principles. Cognitive Overload: Instead of stabilizing the vehicle in manual control, the driver's attention is competed for by an on-screen prompt asking for data categorization. UI Contradiction: While the cabin camera actively penalizes drivers for split-second glances away…”

“I run FSD 96% of the time. It’s so good that I get somewhat complacent. That’s not a character flaw. That’s what a reliable system does to people. The failure mode is simple. Car is holding a curve. Foot accidently brushes the brake. Autosteer disengages. Assist steering torque goes to zero. Wheel unloads. At speed the path goes straight, worst cases, into barrier, pole, or oncoming lane. A heavy Tesla in that geometry is ugly. Tesla’s answer is always the same: the driver disengaged, so it’s not on us. The accident is losing lateral control because of another control (braking) that should only change speed. Brake pedal grazes are easy and inevitable. I can recover a braking event. But I may not recover an instant straight-line on a bend if my hands weren’t on the wheel. Simple fix: Disengage traction but don’t have FSD disengage AutoSteer until I force the wheel. That way FSD knows I have control instead of only assuming that. I love FSD but always feel there is a suicide/killer stick just inches away from my feet. To answer your question, there is no component failure and safety risk is obvious. I can reproduce the scenario by simply tapping the brake on a…”

“2023 Tesla Model Y – HW3 Autopilot computer/camera system failure My 2023 Tesla Model Y has approximately 54,000 miles and is equipped with the Tesla Hardware 3 (HW3) Autopilot computer. After receiving Tesla's FSD v14 Lite software, the vehicle began intermittently losing camera-based driver-assistance functionality. I observed an APP_w141 ECU Thermal Issue alert. The vehicle subsequently experienced APS_w134_appMia and APS_w135_appCritical alerts indicating that the Autopilot Processor Secondary was losing communication with and detecting a malfunction of the Autopilot Processor Primary. When the problem occurs, camera/vision functions and driving visualization become unavailable or degraded, and the vehicle has reported Self-Driving Features Limited, Cruise Control Unavailable, Adaptive Headlight Features Unavailable, and other driver-assistance limitations. In Tesla Service Mode I have documented the primary Autopilot processor repeatedly changing between INIT, CRITICAL and COREBOOT while the secondary processor remains NOMINAL. A DAS reset can temporarily restore communication, but the failure returns. Tesla has proposed replacing the entire HW3 car…”