2018 Tesla Model X Driver Assist & ADAS Problems

Tesla X in full self driving mode failed to lower speed and detect stopped in-lane vehicle on a very sharp turn, crashing into the back of the vehicle at significant speed.

Our Tesla Model X is failing recently with several issues as listed below: 1. 'Autiopilot disabled' - Autopilot was not available to use since 09/2024 after upgraded to 12.x FSD upgrade. Tesla service diagnosed in 11/2024 with some error connected to evaporator fan, advised me to replace the kit at an estimated $580 2. 'Unable to start' - HV battery failed on 03/06/2025 with series of failures that was reported to NHTSA (VOQ#11651899). Tesla replaced the battery, and service delivered vehicle on 03/24/2025 3. 'Hood unlatch' failure - while driving home from Service center on the same day at 70 mph on I-95 freeway, the 'hood' popped up blocking the front view, and had to pull vehicle to shoulder to safety. There was NO warning message on the screen at all. Took the vehicle to service immediately, and service team pointed that they forgot to turn on 'auto-latch' resulting hood failure. They offered the 'free' repair of hood. 4. 'ECU Autopilot failure' - while taking the delivery of 'hood' fix on 04/22/2025, I noticed the 'autopilot' was still NOT working. Serviced diagnosed with 'failed autopilot ECU' at an estimated cost of $1791.55. Currenlty the vehicle is with Tesla Service team. My vehicle is with service team since 03/06/2025, and has been identified with series of issues/failures. It has caused severe safety failure putting our lives at risk with 'unlatched' hood while driving on a freeway. Also with HV battery failure its completely unreliable on when it might fail during driving. Now with failed autopilot ECU, we are unsure of the vehicles ability to navigate, drive function and safety concerns. Service team is unable to provide precise root causes or fixes, or restore it to a functioning vehicle. Every visit with service team there is a new issue with vehicle. Our family is greatly concern with the quality of the vehicle, persisting issues, safety concerns and overall reliability of the vehicle. Please find enclosed all service records.

The Tesla recall under NHTSA Recall No: 23V-838 has not been completed by Tesla. The upgraded computer I purchased from Tesla and had installed in December 2021 cannot accept the OTA update. Tesla is requesting that I replace the computer again for 2 thousand dollars for the recall OTA. Telsa said my current computer has an internal bug and needs to be replaced. I should not have to spend 2K for another computer that barely lasted 2 years.

The vehicle was in cruise control and had a phantom braking event. The vehicle was going at 70 mph and suddenly braked even though there was significant distance between the car in front and nothing on the road. The sun was glaring on the road and possibly the car detected the shadow on the road as an object and braked because of it.

The Full Self Driving System failed to operate correctly. This caused my car to hit another car. I have asked Tesla for the data they use to tell what the driver was doing when the system was on but the Tesla staff who respond to my requests plead ignorance of what data I am referring to. I am not ready to spend the money it would cost to hire a lawyer to force Tesla to hand over the data from their system. I have video from the Tesla camera showing what happens. I will try to upload it. Here is a quick run through of what happened: I entered the freeway and got into the left lane. Once I was safely in the left lane and up to speed I turned on the FSD keeping my hands on the steering wheel. After a few moments the car veered to the right, I tugged against the pull of the FSD and got it back in the lane when all of a sudden it turned my wheel hard right into a minivan. It happened so fast that the wheel turned even with my hands on it. I have been trying to talk to someone at Tesla but it is difficult to break through the front lines as they deflect contacts away from anyone who might be able to answer my questions about getting the FSD incident data. The video is .mp4 so it is not allowing me to upload. Please let me know how to send you the video.

On Oct. 26 at approximately 5:45 p.m. on HWY 26 near Sandy, OR the autopilot system failed by abruptly turning the car into the upcoming turn lain (marked with solid white line) and towards oncoming traffic. I had to immediately take significant corrective action to move the car back into the lane I was traveling. I firmly believe that the car could have cross into the lane going the opposite direction. I definitely was very unsettled by this event. This type of spontaneous autopilot error has occurred numerous times in the past to me (have driven a Model X Tesla since 2016) and I now very seldom use the feature while driving. I have taking no further action regarding this event or others because while under warranty Tesla always come up with rationale that they couldn't find a problem because of loss of connectivity, could not detect a problem, etc. I thought that through the years with their hype and over-the-air updates things would get better but they have not! Thank you for your time. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving on the highway on Tesla enhanced auto pilot when traffic came to a stop I’d notice my Tesla model X was not about to stop nor slow down for the stopped traffic so at the last minute I had to slam on my brakes and swerved to the right lane where I was hit by a truck pulling a trailer which subsequently rammed me into the truck I was trying to avoid rear ending after Teslas forward collision warning failed to notify me or stop the car from crashing in the first place

On a recent 2000 mile trip, we experienced several (10-20) incidents of unnecessary, very strong braking. There were no apparent reasons for the very strong braking episodes. In some instances, there were no cars in front of us and no cars behind us for many miles (I-40, New Mexico). Braking was so severe that it likely would have caused a collision if cars had been closely following us. We have traveled this route several times in past years with no similar emergency braking incidents.

About 224 miles N. of Los Angeles, on I-5, Southbound, the car aggressively braked while using traffic aware cruise control. Speed was around 75 when braking started. Speed dropped to 55 MPH at the end. There was a couple additional brakes on this southbound journey. I can't believe that Tesla thinks they can implement full self driving when they can't manage to maintain a constant and not jarring speed. This is a recipe for disaster.

https://youtu.be/yRdzIs4FJJg "Autopilot is set to shut down 1 second before any impact. Makes the driver 100% in control before an accident. Makes the driver 100% responsible. Tesla has killed two motorcyclists in the past 4 months. At night the ai can't tell the difference between a motorcyclist up close and a car far away. So, it assumes car and runs right into it. Another interesting issue with teslas autopilot. They claim its 10x safer than a person. That not true. The claim is based on sheer accidents per mile. Autopilot is only really used on the highway, eating up miles quickly and in an environment where, although consequences of crashes can be more severe, they happen less often. When adjusted to compare highway driving autopilot to highway driving people, it's really only about as safe as a person, if that. In their 2022 cars tesla has done away with radar. So all new teslas have no idea the true distance something is from them. They are 100% cameras, while every other autonomous driving company is utilizing LiDAR. LiDAR is expensive and ugly. That's why tesla isn't using it. And taking radar out of their cars was just another cost savings measure. They were having a problem with the video and radar being at odds as to what's in front of the car. So instead of spending the money to fix it and fuze the sensors into a more robust solution. They just ditched radar and make the assumption that the video analysis is correct."

My wife was driving the car in was turning left on to a major road, she apparently hit another car trying to turn right on to the major road from opposite side. Both cars must have started from a stop sign and neither of them knew the speed. My wife does not remember the details of the incident, she was shaken up, initially declined to seek medical care but soon after could not recognize people, so had to be taken to ER. The car with all the technology failed to alert the impending crash, did not apply emergency brakes, nor did not record the event which it was supposed to have.

The contact owns a 2018 Tesla Model X. The contact stated that while driving at approximately 70-75 MPH with the cruise control activated, the vehicle experienced phantom braking. The vehicle was taken to the dealer, but the dealer could not duplicate the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 41,200.

I have a 2018 Tesla Model X - When I engage the self-driving mode the car will ghost brake for no apparent reason. There are no cars or pedestrians that I can see to make the car suddenly break hard This is not the 1st time this has happened - I see that you are investigating 2021 - 2022 Tesla model 3 and Y but I am getting the same issues on the 2018 Model X with an upgraded MCU2 computer I would like to bring this to your attention- On my safety score on my Tesla App the only issue i have is hard braking but the car is doing this not me for no apparent reason

Constantly phantom breaks. 30+ times on cruise control (not autopilot) in a 6 mile stretch. Started October 2021, occurs daily on two lane roads

Since I’ve owned this car in Jan, 2018, the auto driving system seems to think there are obstacles and auto brakes abruptly for no reason. In addition, the car fails to break sometimes when there are cars directly in front of the car.

While driving on an interstate freeway on 8-14-2021, using the vehicle Autopilot driver assistance mode (which I had been using for the previous 18 months without incident), the vehicle failed to avoid hitting the vehicle in front of me. This collision resulted in no passenger injury, but resulted in both driver and passenger airbags to engage and resulted in total vehicle loss of the Tesla Model X. No other vehicles involved had airbag engagement. Tesla may have actual information on the functioning of the vehicle and the Autopilot software that may explain why the collision avoidance system failed, but refused to supply me with this information.