Our month-old Model 3 has a habit of randomly dropping the speed while in cruise control, going from 65/70 mph down to 50ish mph. There isn't any pattern to this behavior, aside from the car being in cruise control (the basic cruise control as well as autopilot). Sometimes there wasn't a car in sight, and yet this happened. Sometimes we were in heavy traffic, so we felt rather unsafe.
Both my husband and I, two very different drivers, have noticed this. We took this car on a 1800+ mile round trip last weekend and observed this behavior together. So I booked an appointment using my phone. Today, someone from Tesla contacted us asking for additional information. After my extended description of the problem, he responded with this message:
"I looked at the data from your vehicle and there are no hardware faults that would be indicative of an issue requiring service. The autopilot and other driver's assistance features require the operator to always be alert and ready to take over control for these exact scenarios. Traffic aware cruise control may misinterpret vehicles or other environmental factors as encroaching on your vehicle even if they don't appear to be. This can cause the vehicle to slow down when you feel it should not. These features are constantly being improved over time with updates and will continue to improve."
I did my best to explain to this (young) person what my husband and I independently experienced, but he stopped responding.
So my questions are:
1. Have you experienced such behavior with your Model 3 (or other Tesla models)? Was it fixed? What was the problem?
2. Any tips on getting through to Tesla that even though the diagnostics were negative, the car was indeed behaving in a way that might be dangerous?