Anybody else understand how bad “curvature assist” is in TACC mode on a legacy Model S? Hitting the brakes for a slight curve or hill is crazy. Almost got rear-ended 😡

Sep 24, 2026 · 6:02 PM UTC

25
34
2,858
Sort replies: Relevant Recent Liked
Replying to @spotted_model
About ready to go back to vacuum powered cruise control. So fricken' sick of "what's wrong now? Why can't i diagnose this at home? Why can't I change/upgrade this without bricking my car?" Just about had enough....ALL brands. Will be reposting this truck until I own it.😤
1
4
44
Haha
1
25
Replying to @spotted_model
My 17 X does it sometimes when it’s a straight away. I love brake checking people for zero reason that I can’t turn off
1
4
74
Yuppp 😡😡😡
2
71
Replying to @spotted_model
Legacy MS really requires a learned skillset to handle - honestly. I know, I have a 2015 MS
1
1
41
Yuppp
40
Replying to @spotted_model
It is horrible, reminds me of 2019 FSD.
1
2
58
So bad
2
98
Replying to @spotted_model
0,3g max . Merci l’Europe ! 🤣
1
1
6
Geez
12
Replying to @spotted_model
The UNECE regulations mandate the car to slow down for corners as they don't allow the car to experience certain forces But I notice you're in the US so this doesn't apply. 🤔
4
157
Replying to @spotted_model
Autopilot on 2012-2017 Model S/X isn’t great. FSD runs way better on those models, and only on HW3 upgraded cars. That said, my 2017 HW3 upgraded Model X drives me to and from work every day with almost zero interventions.
3
68
Replying to @spotted_model
Yep. I always thought they’d update to a watered down FSD to handle what AP or TACC does. No wonder they discontinued. My food was always hovering over the accelerator when using AP
1
33
Replying to @spotted_model
They really fubard TACC and autosteer and then completely abandoned it all. Slowing for emergency lights when there are no emergency lights is another one.
1
36
Replying to @spotted_model
It genuinely ruined TACC/Autosteer in my S. My one safety blanket when FSD stopped being usable, and they ruined it. 🙃
1
77
Replying to @spotted_model
Mine is HW4 and it slams the brakes all the time when I’m in the thru lane going past a turning lane. No curve necessary. It’s complete garbage. No idea why it can’t be shut off
1
38
Replying to @spotted_model
HW3 FSD does that on high speed curves too.
1
29
Replying to @spotted_model
Yes!! I get that alllll the time on arrow straight roads with cruise control on. It’s beyond annoying
1
17
Replying to @spotted_model
It's a total joke. Very dangerous!
1
16
Replying to @spotted_model
I've got a 2024 M3P. Same crap! Infuriating. Why oh why can I not turn off the curvature assist???!!!
1
36
Replying to @spotted_model
Added in 2016, another reason sometimes I prefer my 2015 AP1 to 2016 HW3 FSD.
2
27
Replying to @spotted_model
I turned on autopilot for the first time in my 2019 Model 3 last week. I won't do that again!
1
18
Replying to @spotted_model
Yeah, I get why they killed off AP. For the most part it is good, but when you’re going fast on a curvy road, it can do some weird stuff.
1
20
Replying to @spotted_model
Base AP used to be like that. FSD took it to a new level in early days
1
32
Replying to @spotted_model
It’s a terrible feature.
14
Replying to @spotted_model
It’s bad in general.
1
14
Replying to @spotted_model
Need Tesla to do the right thing and #unifythestacks
2
26
Replying to @spotted_model
Flip phone question 😂
1
12
Replying to @spotted_model
Legacy S Problems 😭😭
1
22