Speed Limit Problems

On a recent road trip to Florida from Tennessee I had to stop using Tesla FSD. It became totally unusable. This was due to recent changes in how a Tesla reads the road’s active speed limit. In Georgia they post separate minimum speed signs. Tesla now reads this as the speed limit for the highway and the car slows rapidly unless you are in heavy traffic.

Two years ago we took a similar trip to Florida and FSD worked flawlessly. It is annoying to see FSD regress like this. Auto lane change used to be such a great feature.

Other states combine the speed limit and minimum speed signs onto one sign which a Tesla reads just fine. So we had no problems with speed limits in Tennessee or Florida, however on I-75 in Georgia I just drove myself.

Lane change problem

Another issue I ran into with the latest FSD software is with how it handles interstates with 3 or more lanes. In light traffic with the car riding in the right hand lane the vehicle will suddenly decide to move over a lane even though there is no traffic ahead. A message comes up on the screen saying “Changing lanes to stay out of the rightmost lane”. In some places signs tell you to keep to the right except to pass, this behavior could get you a ticket and is certainly inconsiderate to other road users.

I first noticed this on a road trip last year to the Grand Canyon. I had no idea what was going on and quit using FSD. At least Tesla have improved the messaging but not the poor driving habit.

On two lane interstates the car will stay in the right lane which is normal behavior.

WIth all the hype from Elon Musk that FSD is getting close to full autonomy, my experience is that it is just getting worse. Highway driving used to be great in a Tesla. Not so much anymore.