2020 Tesla Model 3: lane keeping assist jerks the wheel

Filed Jul 2, 2026 · Driver assistance, Steering · CA · 1 injury

On XXX at approximately 5:00 PM, I was driving my 2020 Tesla Model 3 on [XXX] from [XXX] toward [XXX], with Tesla FSD engaged. Near the area where the center divider begins/ends, the vehicle crossed the double yellow/divider area and entered the opposing traffic lane. There was no oncoming traffic at that moment, so there was no crash, but this created a serious potential head-on collision risk. The car also did several hard jerks that aggravated my neck and back that it has been consistently doing for a long time which cause worse ongoing headaches. The system/component that malfunctioned was Tesla FSD/Advanced Driver Assistance, including lane keeping/steering behavior. The vehicle is available for inspection upon request. My safety and the safety of others were put at risk because the vehicle moved into the lane for oncoming traffic. I had to intervene and no longer feel safe using FSD. I have reported unsafe FSD behavior to Tesla multiple times before, but the issue has not been resolved. Tesla service has previously listed the concern as “FSD not working properly/test drive required” and/or general diagnosis, but I have not received a clear written resolution explaining why the vehicle crossed into the opposing lane or how Tesla will prevent this from happening again. There were no warning lamps or messages that I recall before the vehicle crossed into the opposing lane. If Tesla has vehicle logs or telemetry for the incident, I request that they be reviewed. I am reporting this because the vehicle may repeat this unsafe behavior and create a head-on collision risk. The car continues to behave unsafely and erratically. i have a log of some of the incidents. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 30, 2026 · Suspension · 46,124 miles · TX

The contact owns a 2020 Tesla Model 3. The contact stated that while driving at various speeds, the vehicle made an abnormal clunking sound while turning the steering wheel. The messages "Traction Control Disabled", "Lane Departure Avoidance Feature Disabled", "Automatic Vehicle Hold Disabled" and "Stability Control Disabled" were displayed. The vehicle was taken to a dealer, where it was discovered that the lateral link was not attached to the control arm due to a defective bolt. The contact was informed that the subframe and the front passenger’s side lower control arm needed to be replaced. The contact related the failure to the federal safety agency Campaign Number: 21V835000 (Suspension); however, the VIN was not included in the recall. The vehicle remained with the dealer unrepaired. The failure mileage was 46,124.

Filed Jul 15, 2025 · Driver assistance, Electrical · FL

Software update was pushed onto my car, after the update the car autopilot ECU no longer works. When the ECU finally failed these features were stuck or are completely broken/not working: - Auto dim rear view mirrors (these were stuck in dim mode, preventing me from seeing in rain or darkened environments such as at night or under shade, 0% visibility under these conditions when changing lanes or reversing) - Rear view camera completely stopped functioning, as did all cameras on the car - Forward collision warning no longer works - Autopilot (ADAS features in general) no longer functioning including lane keep assist - On screen navigation is locked in place where the car failed (screen shows location where the car ECU presumably failed). I am further unsure if the following features function as required: - Airbag deployment - AEB (Automatic emergency braking)

Filed Jul 13, 2024 · Driver assistance · TX

Driving at highway speed (75 mph) using Autopilot & car rapidly applied hard braking. There were no obstacles, shadows or anything visible that should have caused this. It occurred twice over two days in different locations. If anyone had been behind me too close they would have collided with me. No other vehicle I’ve owned have done this with their implementation of adaptive cruise & lane assist. My car used to use radar and I never had this issue until vision based detection was implemented. It’s occurred numerous times over the years, but no this rapid of braking.

Filed Mar 14, 2024 · Driver assistance, Steering · NY

1.) Steering wheel,yes. 2.) I lost steering at 50 MPH with my twp daughter in backseat. 3.) Car was towed BACK to Tesla (it eas there 3 days ago for 2 front upper control arms replacement) 4.) car not inspected by anyone other than Tesla. 5.) yes 2 warnings “steering assist reduced”and “lane departure disabled”.

Filed Mar 8, 2024 · Driver assistance, Steering · CA

My Model 3 intermittently has the steering wheel locked in position, which sometimes resolves temporarily after rebooting the car. I always get a steering assist reduced error on the car, regardless of rebooting. It also no longer has lane keep capabilities or Autopilot, which involve the car automatically moving the steering. I have not gotten this inspected by a dealer or service center. The issue first appeared yesterday, after I tried to pull out of a parking lot, but I had trouble since my wheel would not turn. I will be going to a service center next week. After the errors began, I have not meaningfully driven the car, since locking of the wheel while driving is very dangerous. A handful of errors showed up on the screen (Cruise Control disabled, Traction Control Disabled, Stability control disabled, Steering assist reduced), and I did not have any regenerative braking applying. I returned safely to my parking spot. After multiple reboots of the car (pressing both wheel buttons), I found that sometimes after putting my car into Drive, my steering wheel was locked. Other times, I could turn my steering wheel without issue, but I would always receive the Steering assist reduced error.

Filed Dec 26, 2023 · Acceleration, Brakes · WA

While operating TACC with lane keeping assist, I experienced multiple iterations of phantom braking when the road and weather was clear ahead. This phantom braking could potentially cause other drivers to collide with the vehicle that unexpectedly braked in the middle of the highway. This problem has been a common issue with multiple people taking their cars to the service center to get checked out with no problem identified. There are no warning lights or indicators that the Tesla is going to phantom brake on the highway. Recommend having Tesla provide information regarding this phantom braking.

Filed Dec 20, 2023 · Driver assistance · CA

An incident occurred in April of 2023 while running FSD Beta 11.3.6 firmware. I have been unable to retest this location on more recent software, so this concern may have been mitigated with a subsequent update. As seen in the video, the yellow lane marking on the left transitioned from the roadway up onto the movable center median. Once on the bridge, the left repeater camera and the center display visualization both illustrate the lane centering was definitely biased towards the left side of the lane, a possible indication the vision-based lane centering was miscued by the yellow line now appearing on the barrier instead of the road surface. This left bias brought the vehicle uncomfortably close to the barrier, which resulted in a manual takeover. It is difficult to judge based on the low resolution of the repeater camera view, but my estimation is that the tires were approximately 12 inches away from the protruding bottom lip of the barrier. [XXX] This same left lane marking concern also occurs at the entrance to the Oakland, California Caldecott tunnel eastbound bore. The Google maps link provided shows the yellow line which defines the left lane edge disappears at the tunnel entrance, at which time the vision-based lane centering seemed to be cuing off of the curb as the lane edge, rather than there being a marking that would delineate a lane edge further away from the curb. An FSD beta user (name and date unavailable) reported contacting the curb at this location at approximately the same date as the GGB recording. [XXX] The GGB matter was brought to the attention of the Bay Area Toll Authority with the suggestion they contact Tesla. I have been unable to verify that the Toll Authority followed up on that suggestion. The release notes for Beta 11.4.4 suggest the issue might have been addressed, to wit, "Improved offset consistency when controlling for static obstacles." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 27, 2023 · Driver assistance · CA

At lease several times in the past 3 months, when using AUTOPILOT and when passing semi-trucks on my right my Model 3 has automatically given a very loud, what I believe to be either a Forward Collision Warning or a Lane Departure Warning, then braked and seemingly veered to the left! This is scary beyond belief and has only happened when AUTOPILOT is engaged and large semi-trucks are to my right. I thought you should know about this issue. Thank you,

Filed Jul 29, 2023 · Acceleration, Brakes · WA

While driving on the freeway, my 2020 Model 3 “phantom braked” multiple times while using the cruise control. No autopilot for lane keeping assistance. There were no cars in front of me or any hazards. The pavement was pretty new. I was using this feature earlier in the trip with no issues then it started all the sudden with multiple incidents in a short amount of time.

Filed Jun 12, 2023 · Driver assistance, Visibility · MD

The automatic windshield wipers came on and would not shut off. The car was clean, the day was sunny, and the camera lenses were free of dust or anything else that could cover them. While driving along, the wipers started and would not shut off. I went into the main monitor/screen that has the wiper settings but I was not able to activate the wiper/off button, so the wipers kept working. Pressing on that button would not activate it. I was in autopilot at the time, i.e., cruise control + lane keep assistance. I have FSD/full self driving, but have never used it since it is still in beta testing. I’m using Tesla software # 2023.7.10 I checked the various Tesla websites, and you can turn off the wipers only if you disable the ADAS features. After I turned off the ADAS, I was able to activate the wiper/off button. But this is a terrible situation, the ADAS needs to be activated, but if I activate, it wipers will begin working whenever they feel like it, regardless of the weather outside. This is clearly a software problem with the Tesla ADASN needs to be corrected. I don’t want to be driving along with auto pilot on, and then the wipers will simply turn on. Any help you could provide would be greatly appreciated to correct this dangerous situation. There are countless hundreds of complaints like this on the various Tesla websites about spontaneously functioning wipers when the weather is bright and sunny.

Filed Apr 11, 2023 · Driver assistance · MN

April 10 & 11. Drive from Minneapolis to Washington D.C. Several phantom braking incidents—two severe. If someone would have been behind me on the Ohio Turnpike, there would have been a major crash. This issue first cropped up on my vehicle in late fall of 2020. WHAT CAN BE DONE TO FORCE TESLA (really MUSK) to install radar sensors or LiDAR? Is there a class action lawsuit that has been started? I have a car I cannot trust to use cruise control. I do not use, or ever want, lane assist or FSD. I just want a reliable and SAFE cruise control system. I get nowhere with Tesla on this. At this point, Tesla should buy back my car—and likely thousands of others or retrofit. I know that others have been injured and no doubt someone is going to get killed…something must be done…this is major SAFETY issue. Thanks.