NHTSA Complaint #11505941 — 2018 TESLA MODEL 3

Near miss: intervention by Emergency Lane Assist almost caused a collision. Location- southbound Highway 99 near Turlock, CA, around 9 am (sun low and ahead). Construction is underway on the highway. Traffic id two lanes in each direction with narrow lanes and concrete K rails dividing the highway. My vehicle was in the fast lane going around a left hand bend with the temporary concrete divider close to the left side of the car. The barrier is uneven in this area and was relatively jagged rather than smoothly paralleling the highway. As I rounded the bend the emergency lane assist sounded a warning and simultaneously turned the wheel sharply to the right as if to avoid striking the center barrier (I was not on an impact trajectory). At that moment I was slowly passing a semi-trailer the was close to my vehicle in the left hand lane. I was roughly 3/4 of the way back from the from the front of the truck. The sharp right swerve from the Emergency Lane Assist put me onto a collision course with the side of the semi- if I had not reacted quickly to counter-correct I believe I’d have gone into the side of the truck. Autopilot or lane assist was not engaged (I don’t have it) and my hands were on the wheel allowing quick reaction. Lane departure warning was not active (turned off), Emergency Lane Assist was active. I did not try to recreate the issue and it has not been confirmed.