🔴 10 BIGGEST Problems with Tesla FSD V12 🔴

Why do I still disengage Tesla FSD nearly every drive--and how hard will it be for Tesla to fix each problem? The top three could prove a challenge for the Tesla AI team!

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🔴 10 BIGGEST Problems with Tesla FSD V12 🔴

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[michaellatta]

I am with your wife. You come across as an impatient driver. I would much prefer FSD on chill to never change lanes unless the lane is at least 10mph slower, and the next turn is far enough away to enxhurr easy return to the desired lane. I want to minimize stress not time.

[johnnychromatic]

I do a lot of country driving, where the implied speed limit is 55. When I reach a small village, the speed limit will change to 25 or 35, and is frequently staked out by CHP or a sherriff's officer. FSD is very bad at slowing to the speed limit, which will force me to disengage. Then when I am leaving the village, there will be a sign saying "End 25 Speed Limit", in other words resume 55 speed limit. FSD will continue showing the speed limit as 25, until it sees an explicit 55 speed limit sign. Another reason to disengage, since it is very annoying to the driver behind me. Those are my to 2 disengagements.

[DrTed]

It also needs to learn to read common road instruction signs, such as a stop sign which has the modification, "Except right turn, " or when overhead signs direct vehicles ahead of time to use one lane for left turn, one for right turn, and one for straight or one lane for straight ahead AND right turn. Also, I have had to disengage 12.3.2 twice as it was about to run into different islands, one between the two different direction lanes in a suburban road at a left turn, and one in a parking lot at low speed after doing a flawless FSD drive prior to that.

[seekerstan]

Driving in the left lane. In Germany, you could be doing 120 on the autobahn in the left lane, and if you aren't actively passing someone, you can get a ticket for obstructing the passing lane. When driving cross country among trucks, they stay right unless passing. Like many things in America, etiquette has gone out the window, It's like no one went to kindergarten and learned common decency. I'm happy to hear FSD has some programmed in.

[AKJammer]

You missed a big one. It needs to be able to read ancillary signs. Ex, School zone 25 when lights flashing. Or if there’s somebody out directing traffic, it needs to take direction from hand signals and ignore the lights.

[gregciano]

While I agree with your points when we are actively supervising the vehicle, I don't think any of this matters as a passenger of a robotaxi. The first few dozen rides we may be nervous with some of the cars actions you mention, but after that, the few seconds later that a car service arrives at your destination will not matter. We'll all be in the back seat looking at our phones. Comfort and gradual acceleration/deceleration will be the only important aspect of the ride, similar to our experience riding in a limousine. Right now my biggest issue is the lack of gradual deceleration before reaching speed bumps, not sure if it doesn't see them in time or the stimulus/response reaction is lagging.

[ramacvr]

I am using FSD 12.3.3, I drive on FSD almost everywhere, significant improvement needed in the school zone, it Doesn’t recognize blinking yellow flash light and slow down . This is important . Minimal lane change should be the default setting.

[davekunkel]

One of our daughters has a Tesla model 3 that she's had for almost 4 years. Over the weekend her husband downloaded and installed the free 30 day trial of FSD. Sunday he brought the car over to our house to take me for a FSD demonstration drive. It consistently did something that I really didn't like. It would accelerate much too aggressively from a stop sign or when a light changed from red to green. The car should drive like a limo driver when FSD is engaged. I would not use FDS at all as long as it does this aggressive acceleration from a stop.

[bluebiplane]

The most unique problem I've seen with V12.3.3, and haven't seen anyone reporting about, is when FSD reads the route sign as a speed limit sign. I've seen this on at least 4 different roads. It was really confusing until I figured out what it was doing (or appears to be doing). The biggest surprises are in 55 mph speed limit areas and the route number is low, like Rt 15. I've also seen where it appears to round the number e.g. Rt 18 is rounded to 20mpg and Rt 3 was rounded to 5 mpg. I haven't seen it slam on the breaks during these events but it definitely is slowing down. I've been able to report most of the time. I've noticed the numeral size on the signs are similar Observed in OH and MD.

[ThePecadillosam]

Yesterday I drove from the SF Bay Area to SoCal using FSD for the first time. The two biggest issues were 1) merging onto the I-5 freeway... I had to intervene when my merge lane was ending but the adjacent freeway lane was still blocked by a long, slow moving big rig truck, and my Model Y started hesitating about what to do, and finally it started accelerating with nowhere to go, which freaked me out; 2) vehicles ahead with their turn signals blinking....literally every time a vehicle in front of me had its turn signal on in flowing traffic, whether in my lane or another lane or even on the shoulder, FSD would start slowing down and hesitating, which was super annoying. In one case, it was a vehicle in the adjacent lane whose driver didn't realize they had forgotten to turn off their turn signal, where a human driver would just drive past such a vehicle, but FSD started slowing down and hesitating, not sure what to do.

[stephenlofy]

My test case was a hairpin turn to my daughters house in LA going west on the 405 then switching to an eastbounnd freeway and within 1 mile having to cross 5 lanes to the offramp. It was flawless!!! Great job Tesla team.

[diyreef]

Great video. My #1 is potholes. Car runs right through them. We have so many in the northeast I often can’t complete a drive without a disengagement to maneuver around them.

[danielschmoldt]

Here are some of my top peeves with 12.3.3:
1. FSD accelerates needlessly fast (wasting energy). FSD should apply the driver’s setting in Controls > Pedals & Steering > Acceleration, so that when Acceleration is set to Chill, FSD accelerates more gradually. This also affects my insurance discount, as I use an insurer-provided accelerometer connected to my cell phone, that monitors driving behavior.
2. FSD is too timid in uncontrolled intersections, or poorly gauges the speed of approaching cars at those intersections.
3. Autospeed seems to go either much too fast (risking speeding violations) or much too slow (annoying other drivers).
4. FSD (Tesla Vision) does not detect roadway obstacles that have a diffuse profile, e.g. downed tree branches, which I’ve experienced with FSD. I don’t know for sure, but I’m concerned that the same would be true for things laying flat on the roadway that have a small profile, e.g., pieces of lumber. Such roadways obstacles are serious safety concerns.

[seekerstan]

Your communication example: When the car is holding for traffic, there is a blue bar pointing out the traffic lane of concern, when it decides to go there is the trajectory noodle. What other communication do you need?

[rctezluh]

my number 1 reason is speeding coming into city limits from 55mph, it sees the speed limit sign but continues to do 9-10mph over

[SullivanSituation]

Shocked to see curbs not on this list. Feel like I frequently have to take over to prevent mine from scraping/going over curbs

[Hkintoworld]

The approach to braking appears as though Full Self-Driving (FSD) technology doesn't utilize regenerative braking in any capacity. Employing regenerative braking in a manner similar to human drivers could significantly enhance the comfort of the driving experience.

[fredhearty]

#3... Linking large language model so that supervisor can 'talk' to FSD about the situation creates a problematic back-seat-driver situation. All of us know how difficult and less safe this becomes when a passenger is second guessing the driver. How does FSD weight 'suggestions' of the supervisor? Suggest we let FSD become better than any human driver and shut it.

[stephenlofy]

The difficult one for me is that it sticks to the center of the road, which is normally just fine. But when i drive on a road with a big camber due to a street with flooding problems i would rather be closer to the left side of the road.

[Scottwilcox]

Dips and pot holes. We have speed dips in my area instead of speed bumps. They have a sign with an arrow pointing to the dip. You have to go through the speed dips much slower than a speed bump or the Tesla will scrape the front end of the car. I have reported this for all the FSD beta versions but nothing has changed. Sometimes if the lighting is right it will see them at the last minute and slam on the brakes. The speed limit is 25. MPH but you need to be going about 5 MPH to not scrape the front end and throw you out of your seat.