Adaptive Cruise Control problems of the 2019 Tesla Model S

Tesla’s software updates have rendered systems useless the vehicle wants to hug and sometimes cross the left double yellow lines. It cannot hold a constant speed and since their implementation of “supervised” full self driving, have made my vehicle unsafe.

My Tesla supervised fsd is a safety hazard. Promised programming updates have not improved the erratic, unsafe “assistance. I try it after each update, but I’m afraid to rely on it other than 5-10mph bumper to bumper road conditions. I don’t have one specific occurrence to report and thank goodness no fatality!.

Driving on the hov lane, no traffic at all, and the Tesla applied the brakes x 2. It happened today at 4:03 pm.

This is my 6th trip with 2019 Tesla s from chicago to san francisco / 1st time so many “phantom braking” incidents / flat tire warning error / screen shut off 3 times …. .

Hundreds of times this car (as well as our other Tesla Model S) would brake hard for no reason, usually on the highway. Often there was no car nearby and no bridge ahead so we have to guess that it's due to the sky. The car will often go from 75 mph down to 25 mph in seconds, sometimes with tire squealing noise. When it happens now we instantly look into the rear view mirror for traffic that might hit us, and we hit the accelerator if necessary. If nobody is behind us, we let it play out to see how slow the car will get. 25 mph on an interstate, which is usually where this occurs, is unsafe. Recently my wife saw an approaching truck that would have hit her had the truck not been able to change lanes.

The car would apply the brakes for no reason while using cruise control.