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Tesla activates cabin radar after three years in some Model Y vehicle | Offers free replacement for some vehicles [2025.2.6]

chrisdh79 | 2025-02-14 11:51 | 266 views

Comments (89)
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[deleted] 2025-02-14 12:02

[removed]

elatllat 2025-02-14 12:08

USS; the one thing 2022 has.

JFreader 2025-02-14 12:13

Pretty stupid when the seat sensors should be adequate for this task.

Driver4952 2025-02-14 12:20

My seat sensor failed and had to replace under warranty.

laplasz 2025-02-14 12:22

wow - saying this when vision works 1000 times better is kind of laughable at this time

Fire69 2025-02-14 12:23

They can sense heartbeat and respiration with this radar. They will know when a baby was forgotten in the car and send a notification to the app. You can't do that with the seat sensors.

laplasz 2025-02-14 12:23

ok, you dont get it then..

JFreader 2025-02-14 12:23

In the front seat?

Masterkrall 2025-02-14 12:30

Tell that to everyone with the slightest possibility of downpour

yhsong1116 2025-02-14 12:33

you should watch Lars and Franz talking about this. they said airbag diplayment was already good with cameras, with this, they can improve even better. im paraphrasing so you go watch the new model Y video with Jay Leno.

Drcashman 2025-02-14 12:33

No radar on 2022. If you mean USS then it might have them. My 2021 M3 had USS and for me it was useless in my Garage. would tell me to stop all the way in and the inch display was way inaccurate. My 2025 makes no useless beeps and for me is very accurate as I can see where to park and I can park at the same place every time.

yhsong1116 2025-02-14 12:33

parking radar didnt keep anyone safe from curb rashes.

JoeyDee86 2025-02-14 12:35

Where does it say the seats are made of similar radar absorbing material like the F-22 and F-35? :P

BeenRoundHereTooLong 2025-02-14 12:44

That’s the kind of good natured educational teasing I’m here for

Fire69 2025-02-14 12:57

In all seats. Franz explained it in the video with Jay Leno. Edit: second row is only for Juniper apparently.

ScottRoberts79 2025-02-14 13:21

The seat sensors have a habit of breaking, have quite a few parts and require disassembling the seat to repair. The radar is one part, covers both seats, and isn’t subject to wear and tear.

elatllat 2025-02-14 13:28

> would tell me to stop all the way in  I found it will do that when bugs get splattered across the sensors, but otherwise accurate.

JFreader 2025-02-14 13:28

They literally said it was for detecting occupants in the front row.

JoeyDee86 2025-02-14 13:52

I think it’s either something with the patch notes or they’re only starting with the front seats officially so far. In the Jay Leno’s Garage video on the new model y with Lars and Franz, they mentioned several times about babies and animals in the back seats, and even mentioned the previous Model Y has it.

thelvaenir 2025-02-14 13:55

How would I know if mine has a cabin radar? The release notes seem to say only 2025 Model Ys? I've got a 2024 MY SR RWD.

FoShizzleShindig 2025-02-14 14:10

USS is useless when we get a snowstorm, think I'd prefer the cameras now.

FoShizzleShindig 2025-02-14 14:12

Yeah that same video mentioned it will come to the back eventually. I think they're going to get rid of seat occupancy sensors eventually and just use this to save some production costs.

AnaIPlease 2025-02-14 14:17

But according to the article, the sensor that can detect in the second row is only in the new Model Y refresh

CandyFromABaby91 2025-02-14 14:22

Ok, you are a much better engineer then. Why don’t you build a car and do it without radar.

[deleted] 2025-02-14 14:29

[removed]

Fire69 2025-02-14 14:39

Sorry, you're right. I was going of the info Franz gave. It seems the new Y has a newer radar.

reckoner23 2025-02-14 14:51

The fuckers turn on when I have luggage on the seats.

wish_you_a_nice_day 2025-02-14 15:20

Just the other day my model y was complaining about no seat belt for my bag in the passenger seat

junktrunk909 2025-02-14 15:25

From the article > this cabin radar is available for 2022 and later Model Y vehicles, manufactured as of approximately early November 2021.

junktrunk909 2025-02-14 15:26

That's for the second row, not this

junktrunk909 2025-02-14 15:28

Radar cannot possibly be cheaper than a simple weight sensor though. It only makes sense that this is needed for the robotaxi plans where you need to be certain nobody is in the car eg going into an overnight charge station.

FoShizzleShindig 2025-02-14 15:37

Simplifies production of the seats/time that adds up. 5 weight sensors vs one centrally located radar module.

Kuriente 2025-02-14 15:58

I experienced USS for my first 5 years of Tesla ownership and wouldn't personally go back. Their vision system is way better.

soapinmouth 2025-02-14 16:07

Can't see why anybody would want to retrofit this. This seems like something more for Tesla to ensure people aren't faking the seat sensors for autopilot and FSD.

gtg465x2 2025-02-14 16:13

I use FSD in the rain regularly. It works fine. The most recent updates don’t even give you the “FSD may be degraded” warning anymore.

meepstone 2025-02-14 17:15

I had it in my 2022 Model 3. Never used it. Great, the screen displays how far away I am.... I have been parking without it my whole life and it's faster to just look out the window and see what I'm doing. Never looked at the screen to park, so useless.

hellphish 2025-02-14 17:24

It was pouring rain yesterday in SoCal and I definitely got that warning, speed limited to 65mph

Sir-putin 2025-02-14 17:38

You are 100% correct. Can’t believe I found a smart redditor

DavidZayas 2025-02-14 17:47

What version are you on? I don't get it on 13.2.7, I used to get it with the slightest amount of rain.

gentlecrab 2025-02-14 17:51

Radar is not accurate enough for avoiding curb rash that’s what ultrasonics are for. Edit: cameras work too assuming they can actually see the curb prob one of the reasons they added a bumper cam to the new Y.

oghowie 2025-02-14 18:01

You need 360 birds eye camera to protect from that.

hellphish 2025-02-14 18:06

I'm on the latest available for HW3, 12.6.3

ibelieve2020 2025-02-14 18:15

Sounds like you might be on HW4 with the better cameras?

gtg465x2 2025-02-14 18:22

2023 with HW3

TapeDeck_ 2025-02-14 18:41

How does it see a baby in a rear facing car seat?

yhsong1116 2025-02-14 18:45

Even that isn’t fail proof if you remember the rivian incident

VideoGameJumanji 2025-02-14 18:51

I received mine dec 28 2021 and it’s a 2022 MY, so I’m assuming not mine?

ibelieve2020 2025-02-14 19:01

Ahhh OK - I'm always curious how the progress is going between the HW versions. Meanwhile, I'm still on EAP HW 2.5 in my 2018 3 w/ radar and USS hahahah

[deleted] 2025-02-14 19:39

I put my backpack on the front seat, when it's full I get the alert chime. The camera will see it's not a person.

RealKent 2025-02-14 21:22

>...manufactured as of approximately early November 2021. Pretty sure that indicates your Dec 28, 2021 build is covered.

GuysImConfused 2025-02-14 21:50

Seat sensors are in fact not adequate. I've had experiences where I am shifting in my seat to adjust myself (lifting my bum off the seat for a second or two) and the car will shift into park because it thinks the seat is empty. I am assuming the radar would not have this issue.

JFreader 2025-02-14 22:16

It will probably have its own set of problems.

JFreader 2025-02-14 22:17

Yeah we'll see

Cramer19 2025-02-14 22:51

I misread and got excited that the forward looking radar might be reactivated, but nope still stuck with crappy vision-only... And now with mandatory automatic lane changes -_-.

coveredcallnomad100 2025-02-15 01:17

seems useless

Fire69 2025-02-15 01:34

It's a radar, not a camera, it doesn't need line of sight. https://www.novelic.com/acam-automotive-in-cabin-monitoring-radar/

Mutiny32 2025-02-15 02:05

Literally did for me. My car hit a concrete barrier after they disabled it while autoparking. Because it was flared out at the bottom and the cameras couldn't see it.

archbish99 2025-02-15 03:15

And... why would you want to continue faking seat sensors for Autopilot or FSD?

QuantumProtector 2025-02-15 06:10

HW3 is so gimped. It’s really sad :(

[deleted] 2025-02-15 06:29

The car can drive itself, has cabin cameras and can’t even conclude my 5 kg backpack isn’t a human.

soapinmouth 2025-02-15 07:05

I don't? The point is, what value does it add to me for Tesla to know this? Why would I pay to give them that ability.

jeffp007 2025-02-15 15:02

But can it detect rain and rain densities on the windshield?

Dapper_Pop9544 2025-02-15 15:44

I’m confused on what it even means to fake seat sensors. Like what does that do?

soapinmouth 2025-02-15 16:09

People trying to sit in the back while AP is running for example. Extremely dangerous but there are idiots who have done this and filmed it.

Dapper_Pop9544 2025-02-15 16:21

So they can somehow take off their seatbelt in the front and the front sensor wouldn’t work so they’d go to back?

soapinmouth 2025-02-15 16:25

Not exactly. I'm not sure I want to explain the steps on how this is done and end up encouraging someone to do this. I'm sure you can find them on Google if you really are that curious. The bottom line is these steps would no longer work with a radar able to tell when you're actually getting out of your seat.

rotarypower101 2025-02-15 17:42

Enlighten me? Which one specifically, link? Seeing those Chinese systems recently, makes you wonder where FSD could be.

yhsong1116 2025-02-15 17:59

https://www.reddit.com/r/Rivian/s/Hw9pBnq8Ge

Tookmyprawns 2025-02-15 19:05

No. It fucking beeps constantly and limits your speed. It’s lame af. Hw4 13.2.7

[deleted] 2025-02-15 19:12

Don’t cops get BALL CANCER from placing the radar gun between their legs when they were working speed traps? What are the health effects of being subjected to a radar for hours on end?

reckoner23 2025-02-16 00:34

Not anymore tho.

Dapper_Pop9544 2025-02-16 03:01

Got it

red_tail_gun_works 2025-02-16 06:00

It depends on if this would solve the issue of seat belt alerts when you have something moderately heavy in the front seat. I keep my backpack and lunch box on the front seat a lot of times and have to stop and move them to the floor so the car will stop beeping. If it’s just a 2nd layer, then yes, I agree. Why on earth would someone want to add this on after the fact. But if it would defeat the seatbelt alerts triggered by the weight sensor then I’d be all on board.

ILoveWhiteBabes 2025-02-16 11:03

You don’t need radar for any of this. Eye tracking with seatbelt accomplishes all of that.

soapinmouth 2025-02-16 17:39

You can cover the camera with AP. Eventually they may do the same for FSD. I also have seen one fairly simple way to circumvent eye tracking with FSD posted here a long time back, not sure if it still works or not.

zongaboy 2025-02-16 18:59

It can do much more. Like detect kids left in car, control airbag deployments based on occupants (no front airbag for small persons)

soapinmouth 2025-02-16 19:59

I think you are missing the fact that this is just the front seats.

ILoveWhiteBabes 2025-02-16 22:26

Yeah you can cover it, but then you’ll get wheel nags again.

redbluematrix 2025-03-27 21:35

Interesting development I bought my model y in march 2023 and apparently it’s equipped with this so called radar. Update was just pushed today.

[deleted] 2025-03-29 12:21

Haha this! I always have to move stuff to the floor 🤦‍♂️

Professional_Milk576 2025-03-30 11:34

Is this on all the time and is it safe exposure to radar? People are saying it can detect heartbeat and breathing. That sounds more like X-ray. I also wish they would do dead animal and pothole avoidance.

silverf1re 2025-03-31 02:44

Rear seat would’ve been way more useful, for the safety of children left in cars. It could alert the owner.

kozmeek 2025-04-20 12:47

This just updated on my 2022 MY and I hate it. Car just doesn't turn off now. I usually take my dog places so his dog bed is in the front seat and the back seats are always down cause I have the dog seat cover. I have to manually shit the car down in safety settings. I even removed rhe dog bed and it still wouldn't turn off. If I hadn't checked the radio would have been on all night and doors left unlocked...such a stupid update

DavidAGMM 2025-05-12 02:17

The radiation from this radar is pretty high. My mom bought a new Tesla Model Y in December 2024, and before the update, she didn’t have any issues (she’s VERY sensitive to EMF, she even had issues with an Android device), and after the update, her neck and ear hurt her, also her head. We know it’s from the cabin radar because I measured myself the EMF levels it produces with a professional device (Trifield TF2), and it produces very high radiation levels. We’re thinking of selling the car, even accepting the loss… she feels very uncomfortable driving the car with this radar, and we can’t deactivate it.

DavidAGMM 2025-05-12 02:18

It uses electromagnetic waves to detect it. My mom is feeling sick because of it, very high radiation levels… from a new Tesla Model Y from December 2024 since the update…

Puzzleheaded_Sink248 2025-05-22 03:54

If it can detect my dogs aren't people that would be great! If it doesn't detect the items you put on there, I bought a little faux seatbelt clip on Amazon that I use. It's great! (Except when the random friend rides with me and I forget to remove it and they are trying to figure out why the seatbelt won't latch. 🤣)

TheLemonbird 2025-05-30 08:02

There really needs to be an option to disable this. I didnt but my car with an in your face radarscanner and i dont intend to update to enable it. Everything but the utmost necessary should always be options in the settings

TheLemonbird 2025-05-30 08:03

Dogs need to be latched though?

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