Submitted by QuebecTesla3 on February 16, 2020
Twice yesterday on the highway, the cruise control set speed changed on its own.
I wasn't using self driving (no auto steer or autopilot), just plain old cruise control. I was on a highway with a speed limit of 100km/h, and my cruise was set to 115km/h. Twice, the set speed dropped on its own to 100km/h. I didn't touch anything, didn't accidentally change the speed myself, and it's not the "phantom braking" problem which I also did experience a few times in the past. The speed of the cruise control changed.
I could understand if I was on autopilot that maybe, and just maybe, it mistakes the car for being on the adjacent road with a lower speed limit and it would "correct" itself, but I was just on cruise control in the middle of a straight line deserted highway.
Has anyone ever experienced anything similar? Thoughts?