2020 Tesla Model X driver assistance problems

Filed Oct 6, 2026 · Driver assistance · TX

I own a 2020 Tesla Model X equipped with HW3 and Full Self-Driving (FSD). After a Tesla software/FSD update earlier in 2026, the vehicle began experiencing a recurring problem during FSD operation. The issue has now occurred more than 20 times. During certain FSD-controlled maneuvers, particularly when turning from a complete stop onto a higher-speed road, FSD commands unusually aggressive acceleration. During the acceleration, FSD abruptly aborts/disengages and the vehicle logs diagnostic fault code DI_w124. Cruise control and FSD then become unavailable. There is one particular location where the condition is highly reproducible. FSD turns from a stop onto a road with a 50 mph speed limit, rapidly accelerates the vehicle, then triggers DI_w124 and aborts. Tesla previously inspected the vehicle for this issue and advised that the vehicle hardware checked out normally. The problem has nevertheless continued through subsequent Tesla software updates. After another recent software update, I tested the same maneuver again on [XXX], and the same DI_w124/FSD abort occurred. The problem did not occur prior to the earlier software/FSD update and appears to be associated with FSD-controlled acceleration rather than a general vehicle hardware failure. I am concerned that a driver-assistance system commanding aggressive acceleration and then unexpectedly disabling itself during the maneuver presents a potential safety risk, particularly when entering a 50 mph roadway or merging into traffic. Tesla has previously inspected the hardware but the condition remains unresolved. I am reporting this so the federal safety agency can determine whether other 2019–2020 Tesla Model S/X HW3 vehicles are experiencing the same DI_w124 fault during FSD-controlled acceleration. here is a link to the video that was taken a few months ago. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 12, 2026 · Driver assistance · MI

While driving my Tesla Model X on the interstate at highway speed, the vehicle began intermittently displaying false warnings that the trunk was open. This occurred multiple times during the drive and appears to have been caused by a malfunctioning trunk latch sensor. At the time, I was using Autosteer, part of Tesla’s Autopilot driver-assistance system. Each time the false trunk-open condition occurred, Autosteer immediately and unexpectedly disengaged. Under normal circumstances, when Autosteer disengages while I am driving, the vehicle provides an audible alert and a visual warning instructing the driver to take control immediately. During these incidents, neither warning occurred. There was no audible alert and no visual notification informing me that Autosteer had disengaged or that I needed to immediately resume steering. The system simply stopped providing automatic steering assistance. Because there was no warning that Autosteer had disengaged, I did not immediately realize that the vehicle was no longer maintaining its lane. The vehicle drifted into the adjacent lane before I recognized what had happened and regained control. Fortunately, there was no vehicle in the adjacent lane. Had another vehicle been present, this could have resulted in a collision. This occurred multiple times during the drive. The false trunk-open warning repeatedly caused Autosteer to disengage without the normal audible or visual disengagement warnings. My primary safety concern is not simply the malfunctioning trunk latch sensor. The safety concern is that a failure of an unrelated trunk latch sensor can cause Autosteer to suddenly disengage at highway speed without providing the driver with an audible or visual warning that automatic steering assistance has been lost. In my case, this failure mode resulted in an unintended lane departure. A relatively minor sensor malfunction should not be capable of causing an unannounced loss of automatic steering assistance.

Filed Aug 2, 2025 · Driver assistance · FL

On or about 20Jun2025: Tesla Driver Assistance Features - After the most recent 2025.20.3 softball update and installation my safety feature of the blind spot monitoring doesn't chim when a car is in my blind spot the car will show red in the font display but the sounds are now inoperable

Filed Jun 11, 2025 · Driver assistance, Steering · NJ

This is a major safety issue --- we got an error that steering assistance was "reduced" for about 12 hours. Then on [XXX] at around [XXX], we were pulling out of a parked area (after being parked for 2 hours) -- and proceeded to increase speed on [XXX] in Newark, the car steering wheel abruptly LOCKED ITSELF - you couldn't even move the steering wheel. It just locked and shut down completely. We proceeded to do a rest (hitting two scroll buttons) to reset the system over 5-6 times. Each time it takes about 10 mins to complete. It was pure HORROR - sitting on the road with cars just passing by and honking at me behind. I had the hazard lights on, but it was a dangerous situation. I was completely STUCK and immobile. After some time, the steering wheel "magically" started working again. We've dropped the Tesla off at Springfield and they are charging us over $6,000 in damages for this. This is a SAFETY issue (we bought the car in March of 2024) and it's only been 15 months since we've had this used car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 30, 2025 · Driver assistance, Steering · TX

Steering assist reduced. It has been faulty for the past six months and auto pilot doesn’t work. Not repaired as the cost of repair is 5K.

Filed Nov 21, 2024 · Driver assistance, Seat belts · TX

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Filed Sep 19, 2024 · Acceleration, Driver assistance · NV

Tesla updated my vehicle with FSD 12.5.2.1 and it is dangerous and should be recalled. The software is too much for my vehicles processor, it frequently freezes for as long as 10 seconds. This loses my speedometer, my signal information, and happened while merging and nearly caused me an accident. The lane keep assist has retrograded significantly, it often goes outside of the painted lines and is in danger of hitting curbs. The processor feels like it struggles to keep up, and the auto steer is unsettled and jerky as it changes its mind. Previous software worked great, Tesla is pushing the software beyond the hardwares capabilities and it’s going to cause accidents. Please stop them.

Filed Mar 25, 2024 · Driver assistance, Electrical · NV

ON [XXX], while driving my second Tesla Model X on [XXX] from Carson City back to Reno at the speed of 79 mph on Autopilot, the same sudden loud alarming situation occurred, with 1. park Assist unavailable 2. Steering assist reduced 3. Adaptive ride control degraded 4. Traction control disabled 5. Stability control disabled 6. Lane departure avoidance features unavailable 7. Automatic emergency Braking is unavailable 8. Automatic vehicle hold disabled. I drove to s stop, the car can't park but remained in neutral gear. Can't hard reset. With my prior experience 1 month ago, I changed it into Tow mode several times, finally was able to switch into Park mode then was able to do a hard reset. When I brought in to Tesla, they said it's the SAME problem, steering rack issue. Another $5300 is gone. How can I be so unlucky to be hit with same model, different year, same problem, same driving condition and almost same place on earth, and both out of warranty and I have to pay in full? There must be manufacture defect on this!!!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 23, 2024 · Brakes, Driver assistance · AZ

On [XXX] at [XXX] my 2020 Tesla Model X Long Range Plus suddenly started braking while on the highway. I was driving 75MPH to San Diego from Arizona. There was no vehicles around or in front while using the cruise control. This also has been an issue with our 2023 Tesla Model Y and previous Model 3 while driving to Las Vegas at 70MPH. I really think this is safety concern. Luckily there was vehicles behind us with all incidents that took place. I recently took the 2020 Tesla Model X on [XXX] for the issue and the technician found no issues while driving it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 13, 2023 · Brakes, Driver assistance · CA

Brakes will lock up a pre collision will activate in forward and reverse when no objects are present. It is a hazard to operate the vehicle since it will randomly slam in the brakes will driving down the road or reversing out of a parking space. Also electrical issues vehicle will no longer lock or unlock