2023 Tesla Model Y: adaptive cruise control problems

Filed Oct 30, 2026 · Driver assistance · CA

The vehicle experienced a hardware failure of its primary Autopilot computer module (Hardware 3) while parked overnight. Upon starting the vehicle, all advanced driver assistance systems (ADAS) were disabled, including Autosteer, Traffic-Aware Cruise Control, Automatic Emergency Braking (AEB), lane-keep assist, and blind-spot monitoring. The vehicle also completely lost its backup camera functionality, side-repeater camera feeds, and internal safety chimes. Vehicle Service Mode diagnostics showed that the primary processor (ECU Primary A) was stuck in a low-level boot loop, displaying a state of AP IN COREBOOT and a status of INIT. The vehicle gateway active fault code was PM_a041_dasMIA, indicating that the DAS CAN node is missing because the processor was non-responsive on the internal communication network. The failure also disabled the internal cellular modem network, preventing navigation from working unless connected to Wi-Fi. Tesla Service technicians diagnosed the failure as an internal short circuit within a sealed component. Because this module has no moving parts and failed while parked, it represents a premature electrical breakdown of a non-serviceable core component. The sudden loss of Automatic Emergency Braking, forward collision warnings, and the rearview camera creates a safety hazard during operation.

Filed Oct 26, 2026 · Driver assistance, Steering · WA · crash

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.

Filed Oct 14, 2026 · Driver assistance, Steering · CA · crash

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.

Filed Oct 9, 2026 · Driver assistance · MN

While using cruise control, the Tesla- several times in the last two weeks- engages "curvature assist" on completely straight roads, slams on the brakes and attempts to steer the car, creating very dangerous situations. This is a very well-known issue with Tesla and they do nothing about it.

Filed Sep 15, 2026 · Acceleration, Driver assistance · WA

Tesla cruise control removed the speed limit functionality as part of its cruise control. I cannot set a maximum speed for the car. Nor can I set a minimum speed for the car. Tesla removed these features through a software update with their autopilot V14. I believe the vehicle is unsafe for myself and others as it does not allow me to set the speed using Traffic-Aware Cruise Control (TACC). Tesla is intentionally removing this feature.

Filed Sep 14, 2026 · Driver assistance, Electrical · MD

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 computer at a cost of approximately $3,120. I am concerned that this may represent a safety-related HW3 computer failure, particularly because I observed an ECU thermal alert and because the failure removes multiple camera-based driver-assistance and safety functions. I have photographs documenting the alerts and processor states and have an open Tesla service case.

Filed Jul 20, 2026 · Driver assistance, Steering · GA

I have reported safety issues on this vehicle before, but a new one has arisen which is related to the same. It is the computer shorting out. While in the past I have reported lack of backup camera, lane keeping, cruise control, collision avoidance, now intermittently the power steering fails. I get an error. Thankfully, this occurs when starting up and not while driving (yet), but it is nearly impossible to turn the wheel. As of now, exiting the car, letting the car doors lock and then coming back to the car has solved the issue, but I worry about this occurring while driving. Tesla knows about the computer issues and should take responsibility via a recall rather than a pricey repair on my own as this is a well reported issue. I have received no communication or feedback despite the complaints I have lodged with you and with Tesla. Please intervene before someone gets hurt.

Filed May 24, 2026 · Brakes, Driver assistance · NM

I have written several times before about my car's phantom braking in cruise control. When the Santa Fe Tesla dealer, where I bought the car, told me recently that the problem had been fixed, I was disappointed they didn't bother to tell me, but thrilled to hear the news. On May 12-13 I drove over 900 miles. I tried cruise control for significant portions of both drives and did not experience one problem. Finally, I thought, they fixed the problem...and how nice it was to have cruise control for extended drives. Not so soon: on May 19th I was driving 2 friends up to volunteer at the Wildlife refuge on I-25 in northern New Mexico. The phantom braking happened again. My friends were dismayed...one thought I had seen something in the road that she didn't see. The other, in the back seat, tried to understand what happened. Please, this is beyond the pale! Of course I will call and take the car in to the dealer...an hour's drive for me. I will be surprised if they fix it, and if they do it under warranty. I did just buy new tires (see previous report about original tires with multiple flats and not even making it to their 40,000 mile warranty) so I'm no longer worried about getting a flat in the rural areas where I live and drive.

Filed Apr 11, 2026 · Driver assistance, Electrical · CA

The forward-facing camera system, Automatic Emergency Braking (AEB), and Autopilot/cruise control have repeatedly failed on a 2023 Tesla Model Y with approximately 22,000 miles. The AEB system becomes unavailable and the Autopilot disengages without warning, including at highway speeds of 70 mph and city speeds of 30 mph. The active safety systems are functional less than 10% of the time. The sudden, unexpected loss of active safety systems at speed presents a serious risk of accident and injury. The problem has been reproduced and confirmed by an authorized Tesla service center on three separate occasions. Repairs attempted include replacement of the triple forward-facing camera assembly (twice) and replacement of the car computer (HW3) with a firmware update. Despite these repairs, the defect recurred within days of each service visit. A fourth service appointment is now scheduled for the same issue. Warning alerts appeared on the vehicle display prior to each failure, specifically "Camera Blocked" and "Automatic Emergency Braking Unavailable." These alerts were first detected in August 2025 and have recurred through January 2026. All three repair attempts were covered under the manufacturer's Basic Vehicle Limited Warranty, confirming acknowledgment of a manufacturing defect. The vehicle and components have been inspected by the manufacturer's authorized service technicians. The vehicle is available for inspection upon request.

Filed Apr 9, 2026 · Driver assistance · CA

I believed Tesla full self driving (FSD) was in effect. My Tesla proceeded at 35 miles an hour toward a stop sign and I had to manually stop the vehicle to prevent blowing the sign. It turns out that Tesla sent an email 2 days ago (April 7 2026) that notified me that FSD had been cancelled because my credit card was declined (I had to replace a card on April 7 due to a lost card). I did not see this email. There was no notification in the vehicle that FSD had been deactivated. When I thought I was engaging FSD, I was in fact engaging an autosteer mode with much lesser capabilities, essentially only acting like adaptive cruise control and lane guidance. Engaging this lesser mode is done in EXACTLY the same fashion as FSD, and any driver using it in my situation would always assume FSD was active. This problem, if not corrected will absolutely cause accidents and potentially fatalities. Tesla needs to inform the driver via the head unit that FSD is not active in an obvious, unmistakeable way.

Filed Mar 24, 2026 · Acceleration, Driver assistance · NM

This is my 10th report; it relates to 2 issues I have reported before 1. The "phantom breaking" on cruise control that I have reported a few times previously has apparently been fixed on a software update, but we were not notified. I went in to Santa Fe Tesla where I took delivery of my vehicle and got into a discussion about my disappointments with this car, specifically the tires (see #2). I mentioned my past problems, including the phantom breaking. The man was dismissive and a bit defensive and asked if I'd made an appointment. I said I'd been told several times they hadn't figured out a software fix (and even Tesla employees were simply refraining from using cruise control, which is what I did). He said they "fixed it a while ago" and he's not had complaints since then. I tried cruise control on my 45 minute freeway drive and indeed, the problem did not occur. Interesting that they knew it was an ongoing problem, didn't deal with it, and didn't announce when they finally did fix it. I do not yet know if it is an ongoing safety problem for me but I'm planning to gradually increase my use of cruise control, since most of my driving is high-speed freeway driving. 2. I asked about getting warranty rebate for my original tires that have failed at 38K miles. He said I would have to pursue that through the distributor (American Tire?) and that he'd only had 2-3 customers ever do that. He said most customers just pay for better tires. He offered to sell me another Continental tire in the $400 range and implied that I could find tires through a tire store. I went to Discount tire who can get me a rebate on only 1 of the 4 tires because it's down to 4/32" tread. The other 3 can't be warrantied until they reach 4/32"...and I've already hydroplaned/slid on the freeway in a sleet storm with wet roads. The company knowingly provides inadequate tires and does not stand behind them. This is an unacceptable safety risk and a moral outrage.

Filed Feb 27, 2026 · Electrical · NM

This is my 8th report. Just after my 7th report, in May 2025, I had my tires rotated at 25,000ish miles. The car still did not record that still shows the last rotation at 8,000 miles. Furthermore, I was told at Discount Tire that I needed new tires because the tread was so thin. I was aghast...a new Tesla with tires that wear out at 25,000 miles? I was told that Tesla does not provide adequate tires for the weight of the car, and that I could buy higher quality tires next time. Now I understand why I kept having flats in the right front tire, despite rotation: all 4 tires were inadequate for my car! I asked if I could wait until my next rotation and he said I could probably make it...but they can't let me leave Discount Tire with tread 4/32nd inch thick. I think I was at 5 or 6 /32nds. The price of appropriate replacement tires is roughly $1,500. Additionally, I just downloaded a software update; here's the first screen of the Release Notes: (uploaded below) Are you kidding me? They still have not fixed the cruise control, and instead of fixing the charge port, they add another step to sidestep the broken one. I'm hoping you will investigate and recall this car. Tesla owners like me who have lost 50% of the value of the low-quality vehicle we were scammed by are pretty frustrated! thanks for listening [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)