Hi folks. Driving a 2019 Model 3 in Norway. Cruise control is largely unusable to me. Is it possible to change the settings such that the traffic-aware cruise control just governs the speed and uses no "safety" features? I am getting both unexpected slowdowns and have experienced phantom braking that are both so dangerous to traffic that it's frequently more risky to use the feature than not. Details below.
Can I turn off all the "intelligent" features somehow and just get a system that reliably governs my car's speed and leaves all other decisions to me?
- Phantom braking: Norway's road network is largely two-lane roads without a central divider. Roads are otherwise wide enough for comfort, speed limit 50 mph, mostly long stretches where visibility is good. Working cruise control would make my driving safer and more comfortable, but I've experienced multiple instances of the loud "danger" chime along with hard braking. This happens with oncoming traffic that's inside its lane, usually but not always during a turn, but usually bigger than most cars, e.g. buses or tractors.
This emergency braking is so sudden that I would be guaranteed to get hit from behind if there was a car directly behind me. I haven't experienced this error for a while, but I've stopped using this feature when traffic is nearby as it's a significant security risk.
A side note -- The false positives also make the positive part of this safety feature worse, as they condition me to second-guess the car's responses and there's really no room for that if I actually experienced an emergency. E.g. if the car noticed a moose that I did not and started braking -- my first response would now be to check the mirror to determine if the (by experience, unnecessary) slowdown is a security risk, taking my eyes away from the potential security risk in front. You can see how this makes the system of car & driver less safe and skipping the cruise control completely makes the drive safer.
- Unexpected slowdowns: When driving on a 4-lane highway, independent of whether there's traffic nearby, the car sometimes resets the cruise control setting from 70 to 50 mph and immediately starts braking. The braking is not as sudden as with the phantom braking above, but still presents a security risk as an unattentive driver behind would most likely hit me. They would probably be at fault in court, sure, but I'd rather just not get hit in the first place. So now I also turn off TACC when I'm on a 4-lane road and there's a car behind me, which sort of defeats the point.
- Unnecessary slowdowns: When driving on a 4-lane highway and passing another car, the car frequently gets nervous and seems to think that the other car is about to enter my lane when it's not. It slows down from the e.g. 10mph relative velocity to a speed that's slower than the car I'm about to pass. This is also sort of risky, as it presents the same hazard to cars behind as point 2 above, but it's more of an inconvenience as it will later accelerate.
Can I turn off all the "intelligent" features somehow and just get a system that reliably governs my car's speed and leaves all other decisions to me?