NHTSA Complaint #11690655 — 2025 TESLA MODEL 3

I want to add an update to my previous report # 11690629. I think it would be helpful to provide what the Max Speed should be based on my input. So, I will just resubmit the previous report with some additional information. On December 31, 2024, I purchased a new Tesla Model 3 Long Range with Full Self-Driving (FSD). The problem is the car goes faster than it should when Full Self-Driving is activated. I have attached an example photo of the Tesla screen taken while the car is being controlled by FSD. It shows the actual speed limit of the road is 35 MPH, and the car is traveling at a steady speed of 51 MPH. It also shows a “Max Speed” of 64 MPH which means the car may travel that fast on this road if it chooses to. Since I use an Offset of 10%, the Max Speed in this 35 zone should be 39 MPH. However, the car increased it to 64 MPH, and I certainly did not use the right scroll wheel to increase it. This is clearly a safety issue which can lead to accidents. Tesla has made 5 attempts to fix this without success. On the last attempt (September 24, 2025), they refused to answer my questions such as: Why does the Max Speed suddenly change to a value much higher than my specification? They simply stated that the system was operating as designed. Really? It’s design to drive 51 MPH in a 35 MPH zone? Furthermore, they went on to say I should disengage the FSD system or intervene manually if I believe the car is operating in an unsafe manner. One reason I purchased this car was for FSD. I would expect them to fix it rather than my having to abandon this feature that I pay for. I hope you will encourage Tesla to fix this issue before there are any more FSD-related accidents.