2026 TESLA MODEL Y Forward Collision Avoidance Adaptive Cruise Control Problems

Vehicle equipped with Tesla Full Self-Driving (Supervised v 14.2) software exhibits unsafe automated behavior due to removal of driver speed control. The system infers speed limits and driving speed without allowing the driver to set a safe maximum speed. In residential neighborhoods with children, pedestrians, and shared social spaces, the vehicle drives at model-inferred speeds that are socially and physically unsafe. Driver is unable to impose a lower safe speed limit without disengaging. Tesla removed previous option for driver to adjust speed. In a state park campground, the system failed to detect a posted 15 mph speed limit and inferred a 55 mph limit. The vehicle accelerated to unsafe speeds on narrow, pedestrian-heavy roads, with no driver ability to cap speed while under FSD. This represents a loss of human override authority and unsafe autonomous system behavior, creating pedestrian hazard and safety risk. Failure mode: automated speed inference dominance, map...

Vehicle equipped with Tesla Full Self-Driving (Supervised v 14.2) software exhibits unsafe automated following behavior. The system maintains following distances that are too short at steady speeds, including behind stable lead vehicles with no braking or traffic disturbances. Tesla’s own Safety Score system flags this behavior as “following too closely,” indicating elevated collision risk. However, the driver has no available control to adjust minimum following distance or impose safer headway while using FSD This represents unsafe autonomous tailgating behavior with loss of driver control authority over safe following distance, creating increased risk of rear-end collision and hazardous automated driving conditions. Tesla offers several controls (Sloth, Chill, Standard, Hurry, and MadMax) modes, none of which solve the issue if the driver in front is driving the speed limit. My car under FSD will crowd (or tailgate) the front car regardless of the mode. In one instance, I was following a car...

On full self driving, there is no way to change the follow distance and it follows way too close very often. This generates incidents that the car reports to Tesla insurance and we are penalized for something we can't always control. We also can't change our speed but I'm more concerned about the follow distance on highways. Last incident at 7:46PM on 1/25/2026.

On January 20, around 9:35 am, Phoenix time, I had the car in self-driving mode for a left-hand turn at the intercession of Camino Real and River Road in Tucson, Arizona. A real-time view shows that it’s a tricky and dangerous left-hand turn. For the past 3 weeks, the car navigated it well, waiting until it was perfectly safe to do so. Today, however, the car moved quickly and unexpectedly into the center of River Road, narrowly escaping a head on collision with a west-bound car, and then paused, squeezed in between west and east-bound lanes when I tapped the brake and took the wheel. Everything happened so quickly. I made the left turn into the east-bound lane, but, looking back, I don’t know how an accident didn’t occur, as traffic was still moving in east-bound lanes rapidly. There must have been enough distance between two cars at just the...

I was driving in full self driving mode on my Tesla model Y. The car stopped at the left turn stoplight as it does normally. And then while the light was still red and the cross traffic was green (traffic flowing), the Tesla released the brake, accelerating into the intersection. I stomped on the brake and kept the car from fully entering the intersection, then continue home without using Full Self Driving mode any further. If I hadn’t intervened, the Tesla would have caused an accident, injury, or even death.

When in self driving mode, which activates the adaptive cruise control, it is not possible to set the following distance. The following distance automatically selected by Tesla self driving is much too close to the vehicle in front of me. Tesla has removed the ability to set the following distance. It follows at approximately 2 seconds behind the car in front of me, regardless of my vehicle speed .... at 80 MPH 2 seconds is not enough time for a driver to react. Following distance should be controllable by the driver. Taking away this ability deprives a driver of driving within their own limitations.

There is a SERIOUS safety-related FSD (full self driving) fundamental design flaw with stop sign behavior. On previous versions AND on the latest and best version of FSD (currently that is v14.2.1.25) when FSD approaches a stop sign AND there is no white painted stopping line, FSD will make its full initial stop (also called the zero-speed stop) directly at or behind the stop sign instead of making the initial full stop beyond the stop sign at a location where the driver can see cross traffic. Sometimes the FSD initial full stop is 20, 30, 40, even 50+ feet back away from the edge of the road. At these distances from the edge of the road, most of the time, there is NO VISUAL of cross traffic left and right. The FSD stop then turns into the FSD "creep" where FSD, after stopping 30 feet back WILL THEN commit to...

On several occasions, my Tesla Model Y has braked for no reason while using Traffic Aware Cruise Control as well as when using Autopilot. I can re-create this situation on the same parts of the highway. The sudden, uncommanded stopping creates a hazardous situation with the cars being me as I may get rear ended. At this point, I do not feel safe using Autopilot or TACC. I submitted a ticket to Tesla but they declined to work on it.

Very scary! Heading west on [XXX] , my 2026 Tesla model Y ran 2 red lights! It stopped at the first red light that sits back about 100 feet from [XXX] , and then just sped ahead, went through that light and the one directly on [XXX] and made a right turn. Crazy! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Incident date 11/27/25 Incident Location: CA State highway 101between San Luis Obispo and Los Angeles. Driving Conditions: Daylight/dry roadway. Description of Safety Defect / Complaint: During a single approximately 400-mile highway road trip, while using Tesla’s Traffic-Aware Cruise Control (TACC) feature enabled, the vehicle abruptly and forcefully applied the brakes on at least six (6) separate occasions without any apparent cause. On each occurrence: • No vehicle ahead was braking or decelerating, • No vehicle was merging or cutting in front of my vehicle, • No stationary or moving obstacles (including overpasses, road signs, or debris) were present in or near the travel lane, • The forward roadway was clear and unobstructed for a considerable distance. These sudden, un-commanded braking events were severe enough to cause significant deceleration, requiring me to immediately intervene by pressing the accelerator pedal to override the system. Due to the frequency and unpredictability of these...

On the day of the incident, I drove my vehicle into the charging station and activated the Tesla FSD autonomous driving and automatic parking functions. During the automatic parking attempt by the vehicle, the system exhibited the following severe loss of control behaviors: 1. The vehicle automatically collided with the vehicle in front without any human operation. 2. It paused for about 1 second after the collision. 3. Then, the vehicle suddenly accelerated in reverse at high speed, again without any driver operation. 4. It directly hit another Tesla that was charging behind my vehicle. The entire process is fully executed automatically by the vehicle system. I cannot intervene or stop the system through the steering wheel or brakes. II. Severe Security Risks When the accident happened, my friend was sitting in the passenger seat. If the vehicle had moved a few more inches, it could have caused serious injury...

My car installed update v12 (2025.38.8.7) last night. This morning I was driving to work using autopilot when alarms sounded, the hazard lights turned on, and the screen flashed a warning that I had to take over immediately. The message included a note that autopilot had failed due to a "systems error." The navigation and visualization screen froze, went blank, and took 10 minutes to come back on. I asked Tesla to roll back the update and they have told me that they cannot do that. I came very close to crashing into a concrete guard rail as the car was going around a turn when the system failed.

The latest version of Tesla FSD software does not let me fully control my speed. You can switch profiles or stop using Full Self-Driving, but you cannot set the speed to what you want. In the last version, you could use the right scroll wheel to increase or decrease the speed. Now that shifts profiles but even that does not give you control over what exact speed you are driving

While driving in rain at night, the vehicle’s automated driving system attempted to make a turn at an intersection near active train tracks. Instead of remaining on the roadway, the system steered the vehicle directly onto the train tracks, where the vehicle became stuck between the tracks and the paved road surface. All four tires were damaged, and the vehicle could not return to the travel lane under its own control. If a train had been approaching, this situation could have resulted in a severe or fatal collision. I had to manually reverse the vehicle a significant distance to return to the roadway. The malfunction appeared to result from the automated driving system misidentifying the roadway under rain and low-visibility conditions. This suggests a recurring risk for any vehicle using the system at this location in similar conditions. The safety issue has not yet been inspected or confirmed by the...

FSD was unable to avoid object in road, may be due to how the adaptive headlights work as I was unable to see the object as well FSD/adaptive headlights may may it hard or impossible to see objects on road at night No In the process of a insurance claim No

Tesla FSD v14.1.3 feels unsafe for the typical “average” driver because it no longer allows users to set a maximum speed limit offset when using the Standard driving profile. In FSD v13, drivers could specify a max speed offset—such as 10% or 15% above the posted limit—when FSD was enabled. However, this option is no longer available in FSD v14. As a result, FSD v14 in the Standard profile often speeds on highways and makes aggressive lane changes to pass slower vehicles. This behavior feels unsafe and stressful for most everyday drivers. Tesla should restore the ability for each driver to set their own comfortable max speed limit and reduce the aggressiveness of lane changes.

TESLA FSD Issues: 1. Phantom braking sudden to a full stop for no known reason in the middle of the road, throwing my dogs into the floor and the car stopped completely on the highway. If an infant had been in the car Ina car seat, their neck could have been broken 2. Sudden jerkiness when making turns 3. In one case the car suddenly changed lanes and was a close encounter. 4. FSD system is now completely non-functioning. 5. These issues started about about 1 month ago and worsened in the past 1 week after the latest software update. TESLA Premium Connectivity Navigation Issue 1. Instead of taking me on main roads to my destination, it has been taking me down rural, isolated dirt roads. In one case I was directed to a dirt, logging road, isolated and dangerous terrain. I had to turn around in a secluded area...

Upon purchase of the vehicle, unlike previous models and versions of the software - the vehicle’s speed limit control was incapable of being set - instead, using FSD, you had to select from percentage based offsets - which were frequently ignored and would still go much higher or much lower than the percentage value set. The owner of the vehicle was unable to say limit to only 10 over the speed limit; instead it was percent based and not reliable. In addition, more than a third of the time - the speed limits in the infotainment system did not match the posted speed limits. Sometimes, in the middle of a highway - it would randomly go from 55 to 25, posing a significant threat hazard when using the FSD or cruise control system (which is something Tesla charges extra for access to) causing the vehicle to immediately decrease speed when...

Reporting FSD incident on 10/08/25 approx around 8.15 PM I was going on I-90 towards western mass / u mass Amherst using FSD on 10/08/25 On I-90 road work was ongoing and it was 2 lanes. All the vehicles started going in the right lane as left lane had cones . Left lanes cones were tapering on its way ahead. My Tesla FSD chose the left lane which I would not choose as I saw at the distance cones were tapering to form a single lane . Tesla FSD drove in left lane and as it noticed cones tapering into single lane FSD acutely cut into the right lane in front of the of the truck at a very very narrow margin . Once the right lane , FSD asked me to take control of the car. From there till U mass Amherst I could not use FSD . This...

I would like to formally report several incidents I have experienced with my newly purchased Tesla Model Y. I acquired the vehicle on [XXX], collected it from Washington D.C., and drove it back to Houston between September 20 and 21. Prior to my return journey, I conducted a test drive. During this drive, at dusk, I engaged Full Self-Driving (FSD) mode. The vehicle stopped appropriately at a traffic light; however, once the light turned green, it moved forward but veered into the yellow safety buffer zone located between the lanes of opposing traffic. I intervened by manually steering the car back into the correct lane. A similar occurrence happened in Washington D.C. while attempting a left turn under a highway overpass—the vehicle again crossed into the yellow lines. These incidents suggest that the FSD system did not reliably detect the yellow lane markers. On the weekend of [XXX], during my...

Bought a brand new Model Y and I less than a week I received the below two error message warnings and the airbag light comes on. Cabin occupancy radar obstructed. Front passenger safety restraint system issue. Also to engage the FSD, I have to double tab 2-3 times in order for it to engage.

I was provided a Tesla Model Y Juniper demo vehicle for a test drive on August 3, 2026 and the incident took place in it around 6:00 pm (±45 min). Full Self-Driving (FSD) was engaged. I had placed an order for a new Model Y on August 2 and took delivery on August 10 (different VIN). During the demo, FSD initially performed well: it autoparked into an apartment parking spot and exited once correctly. However, the second time, the system made a dangerous maneuver. It activated the left indicator and accelerated rapidly as if entering a roadway, but instead turned left directly into a pole. The pole struck the rear door. I braked, but the system’s sudden move left no time to react. A reasonable human would have exited slowly and cautiously, but FSD acted abruptly and unsafely. My pregnant wife was in the passenger seat, and both of us...

The Curvature Assist function activates and applies the brakes automatically on straight and level sections of freeways with no observable obstacles or curves, requiring driver to resume acceleration to override the brakes.

Update to ODI 11678614. This problem applies to non-FSD (Full Self Driving) Tesla Model Y cars. Tesla's manual describes Autopilot as Traffic Aware Cruise Control - it's the first step on non-FSD cars. The second step on non-FSD cars, Autosteer, is active lane keeping. In older Ys, the first stalk pull engages autopilot, second pull engages autosteer. 2026 Juniper doesn't have a stalk - a single scroll wheel press engages both. I read the 300 page Juniper 2026 Model Y manual before driving it for the first time. On page 108, it lists 7 things that will cause autopilot to disengage. I presumed that comprehensive list was complete. unable to attach. Having *autopilot* disengage when turning the wheel in *autosteer* is not listed. During my 59K miles on my 2021 Model Y, I used autosteer for at least 20K miles. Turning the wheel in autosteer did *not* disengage autopilot. In...

I've driven my old 2021 Tesla Model Y for 4 years / 59K miles. Four days ago, I got a new 2026 Tesla Model Y. The new Y has made a change to the interaction of the cruise control and automatic lane keeping. In the old one, first cruise was enabled, then lane keeping. If you disengaged lane keeping by overriding the steering wheel, cruise control was maintained. In the new Y, a single selection enables both cruise and lane keeping. The safety issue is that overriding lane keeping by turning the steering wheel disengages both features at once - the old method kept cruise control enabled. I was driving in heavy traffic today on a 6 lane interstate with cruise and lane keeping enabled. The car next to me abruptly swerved into my lane, causing me to make an emergency lane change to avoid a collision. When I overrode...

While driving along a few roads using Traffic Aware Cruise Control (TACC) or AutoPilot (AP), the car will suddenly brake for no reason at all. Speeds reduced from 75 to 50 in 2 seconds. Had there been a car close behind me, we may have collided. I am able to reproduce this on several other roads as well. I have not yet reported this to the manufacturer, but a review of internet forums shows this to be a relatively common occurrence among owners. They refer to this as Phantom Braking.

I was driving with FSD on [XXX] and had to intervene to take control when a bumper showed up on the road. When FSD was driving in standard mode, it was driving at 72 miles/ hr and was too close to the prior car. When the prior car quickly dodged the bumper my car was already too close to the bumper and needed to make a quick turn. The car almost rolled over. Dashcam video: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The incident occurred on [XXX] around [XXX] (from the dashcam footages) in a highway (don't know the place, but I have a police report). I was driving my Tesla model Y 2026 with Full Self-Driving (FSD v13.2.8) Beta engaged when the vehicle suddenly off the road and hit the fence on shoulder. I retrieved dashcam footage from the incident, including footage leading up to and during the accident. the FSD system malfunctioned, the car is in a body shop and is available for inspection upon request if done quickly; Huge risk to myself and others because no way know when the FSD failed; from this link, same issue: [XXX] the vehicle has not inspected by others no any warnings, the fsd had been working properly in the firt 300 miles trip; but all of sudden, swerved to the roadside with full speed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION...