2023 VinFast VF 8 Driver Assist & ADAS Problems

See attached document for complaint. I am writing to file a formal complaint regarding serious delays and lack of communication surro ding a safety recall repair for my VinFast vehicle. I received an Important Safety Recall Notice from VinFast Auto LLC regarding Recall Notice VPAC 379 / NHTSA Recall No. 25V559, involving a software update to address issues with the Lane Keeping Assist {LKA) system. The notice states that this update should take approximately five (5) hours to complete. Despite this, I have been waiting for over three months to obtain an appointment for this recall service. When I went to the dealership today to drop off my vehicle, the staff could not provide any estimated timeframe for how long the repair would take. This is especially conce, ning because during a previous visit, my vehicle remained at the dealership for nearly one month. When I asked the employee how long the recall update would take, I was told they would not know until they began the software update process. I was also informed that once the update starts, it cannot be stopped. This was not communicated to me in advance, and I was left without any clear plan for transportation or support.I had to leave because I need to pickup my kids from school. I cannot find any appointments now? I asked how I was expected to get home or whether alternate transportation such as an Uber or loaner vehicle would be provided, and I was told that there was nothing they could do. I find it unacceptable that after waiting months for a safety recall repair-one that the manufacturer estimates at only five hours-the dealership is unable to provide a reasonable timeline or any assistance for customers who depend on their vehicles for daily transportation. I respectfully request that NHTSA review this matter, as consumers should not face excessive delays, unclear repair timeframes, or lack of transportation support when attempting to comply with an important safety recall. Thank you for your attention to this issue.

See attached document for complaint.

Got my car back from service a couple months ago and it is still performing with errors. While driving in a specific lane on the freeway the car would try to pull my steering wheel to the other lane. VinFast stated an update is all is needed and the problem still is occurring. This car is dangerous. One example of this is the Pleasanton California incident.

Lane keep assist will intermittently trigger while driving straight. After having this happen several times, I now disable the option at the start of every drive. Lane keep assist module will trigger a fault and restart mid drive despite being turned off prior to driving. This is in a drive by wire vehicle in which there is no direct connection between the physical wheels and the steering wheels. This has happened 3 times to me, and once to my wife. It has happened on my neighborhood streets going less than 20 mph, and it has happened on highways going 65 mph. The modules on the vehicle will intermittently, but frequently fail. The notification of various modules failing only appears on the center console screen and lasts for less than .5 second. There is no log available to the owner/consumer for prior failures if the system is able to "recover". The only way that I was able to discover this behavior by the lane keep assist module is because 2 systems had failures, then cleared and the "feature" was suddenly active in the middle of a drive. I do not know what the first system that failed was, by the time I looked down it have changed to the lane keep assist module. The vehicle has aprox. 6000 total miles on it as of the most recent incident. All other incidents happened prior to that mileage. Vinfast customer service is happy to take reports and tell me that their vehicle service department will get in touch with me. There have been no attempts to contact me by the vehicle service department, and the company does not allow customers to directly contact the vehicle service department.

The line keeping assist system keeps on jerking the car into traffic

1) Forward collision detection doesn't work. Very rarely screen shows a pop up, but never applies automatic brakes. Especially when we were in traffic and if vehicle infrant suddenly stops. ..then it doesn't detect the forward stopped objects and fail to apply breaks 2) we need to push break paddle hard to stop the vehicle completely when car is below 10Mil/hrs speed . It feels like at lower speeds break paddle doesn't work. 3) The lane keeping assistant never worked. 4) Sometimes a car drags to one side of the traffic even when it is going at a speed of 25Mph.

As per the technical specifications, The VF8 car must adhere collision safety features. But actually when we drive the car on freeways, State highways, and internal roads, these safely features never worked for me. Kindly refer the attached technical feature documents so called supported features by the manufacturer.

When in heavy fog, rain, direct light to cameras or sensor the safety features become unavailable. As soon as any of the above goes away they come back. This in my opinion becomes more of a risk driving these vehicles if the safety systems do not function properly.