What 411 owners told NHTSA about the 2023 Tesla Model 3

While driving at highway speed under normal operating conditions with the accelerator engaged and no braking input, the vehicle suddenly experienced a sustained 6-minute-12-second ADAS/EDR degradation cascade. This included OVERHEAT_PROTECT_FANONLY activation, repeated AEB_CAN_STATE_UNAVAILABLE toggling, FAULT 14.0 brake-signal mismatch, impossible negative brake pressures, and 27+ ABS/EBD/ESP fault-lamp cycles. No warning lamps, messages, or alerts appeared prior to the cascade. The degradation resulted in loss of braking assist and stability control functions, causing two collision events (right-side T-bone impact followed by curb strike) despite no driver error or input. This failure mode matches the exact ADAS/EDR degradation pattern under active NHTSA Engineering Analysis EA26002. Full technical details, timestamps, fault logs, sampling gaps, and EDR data are provided in the attached narrative PDF and supporting CSV files.

NHTSA ODI 11732616

STEERING WHEEL LOCKED UP WHILE DRIVING, CAUSING A COLLISION IN THE HIGHWAY

NHTSA ODI 11612707

model 3 self deleted after failing to maintain lane and crossed the white line, and off pavement, into eroded ditch.

NHTSA ODI 11609261

Tesla Motors has two self-driving features, a mode they call enhanced autopilot and Full Self-Driving. Enhanced Autopilot is used primarily on freeways, and allows the car to switch lanes without driver's assistance, while maintaining the speed of traffic. Full Self Driving is a separate system in and of itself that relies on far more sensors, and is far more complex, as it needs to be in order to handle all the nuances of allowing a car to drive itself on and around city streets. During the month of April ,Tesla previewed the supposed improvements in its full self driving mode by releasing it to everyone for free for that month. I was exiting the 101 freeway in Los Angeles, utilizing the enhanced autopilot feature to navigate myself to my destination. At this exit, the car makes a right on Main St, drives downabout 500 feet and then makes another right so that you're briefly traveling underneath the freeway from you'd just exited. As the car made that second right, while on what should have full self-driving mode, the car failed to navigate the angle of that turn and ran right into a steep curb at a fairly fast speed, destroying the right drive train, the right tire, the entire front bumper, and the cars wheel chassis and suspsnesion system all still have to be fixed. I believe the malfunction was caused by the car failing to properly switch vbetween enhancd autopilot and full self-driving if they utilize GPS to mmake that determination, because it felt almost as if the car was trying to switch into the lane to the right (which didnt exist there was the curb there) and not like it was attempting to negotiate or preparing to make a wider turn maneuver. I don't believe it even decelerated as it hit the curb. I broke my toe but otherwise am all right. Tesla won't honor their warranty and is threatening to repo the car they won't fix.

NHTSA ODI 11592873

Tesla autopilot drifted over two lanes and into the side of a semi-truck on the freeway. It was night time but with plenty of light, no rain, and clearly marked lines separating the lanes. Not only did autopilot fail, but the features to help avoid drifting out of a lane even when not using autopilot, also failed. Those features are supposed to auto-steer back into the lane and beep to alert the driver. None of this occurred. 1. Yes vehicle is available for inspection upon request 2. Could have easily led to extensive damage, injuries or fatalities. Everyone got lucky 3. Problem has not been reproduced by dealer, but I have video of the event 4. Vehicle has not been inspected by any 3rd parties

NHTSA ODI 11578778

Summary: FSD malfunctioned, failed to disengage, causing loss of steering control, thus causing car to steer into wrong lane and resulting in an accident. Tesla Service Center refused to inspect unless car is fixed. Car was sent to Crash Champions ( autobody shop) and was quoted $35k to fix. Car was deemed as totaled by Tesla insurance. No response from fsdbeta@tesla.com I suspect that the latest FSD software update has caused my car to lose control. Time of incident: 19:28 pm Location : [XXX] , [XXX] Entering from [XXX] . Weather condition: Clear night, well lit. Low traffic. What happened:
 My car has been driving in FSD on Lawrence Expressway and it was doing everything correctly. Approaching that upcoming tight bend, the FSD slowed down the car, and I took over by steering the steering wheel to the right to deactivate FSD and taking the tight turn, right before the white rows of triangles on the street. At this moment, the steering wheel forcibly turned to the opposite direction (i.e. left). I tried to correct the steering wheel by turning right even more, but the steering wheel wasn’t responding to my input for a split second. At this moment, my car is now on the wrong lane of Wildwood Ave and my car finally responded to my steering input. I had to swerve in the opposite direction to avoid the incoming traffic and ended up brushing against an SUV, followed by an impact on the curb, before finally slowing down. Seeing that there was incoming traffic from the back, I drove down to a residential street to park my car for safety reason. The SUV driver called the police to handle the situation, we had our information and testimonies recorded down. I have already followed the safe practices of driving with FSD according to the manual, but in this situation, I am not certain which technology is responsible for causing my car to override my manual steering input. This led to me to question the driver safety systems in this car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11559566

Car steering felt stuck and slid off the road which resulted in crashing into a tree. Tesla features did not help stay in the lane or break in an emergency.

NHTSA ODI 11520831