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Rear Seats Not Detecting Child in Car Seat

teknoprep

Member
Jan 19, 2019
66
28
Florida
I’ve got a new 5-seat Model Y and absolutely loving it! One issue I did notice - the 2 rear seats are not detecting my 2 children in their car seats. They weigh 30 pounds and the car seat weighs 20 pounds - so 50 total.

I’ve read complaints about the occupant detectors being too sensitive, but none saying they weren’t sensitive enough. To make sure they weren’t defective I pulled out the car seats and sat in all 3 seats in the back, and each time the seat belt notification popped up.

The issue is the rear vents don’t turn on when Climate is set to Auto.

Is this normal for a 50 pound weight? Should I have a Mobile Tech out to look at it?
 

shingles

Member
Feb 23, 2021
59
32
Texas, USA
Following.
I did not realize that the rear vents were supposed to come on automatically if it detected rear seat occupants, I've just been turning it on when the kid is riding in the car seat in the back.
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
Following.
I did not realize that the rear vents were supposed to come on automatically if it detected rear seat occupants, I've just been turning it on when the kid is riding in the car seat in the back.

Quick update - I did some troubleshooting, and it looks like the occupancy sensor is in the middle of the seat, where it dips down. The car seats put most of their weight on the front of the seat (where your thighs go), so I'm guessing that is why its not detecting the seats or the kids.

Looks like you are having the same issue! Only issue with manually turning on back, then everything turns to Manual mode. Not ideal.

Is this what anyone else is experiencing?
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
I think I found a solution:
  • Take car seats out
  • Have adults sit in back 2 seats with no seat belts on
  • Click the Unbuckled button on the screen, and it goes to car-seat mode
  • Turn off car, install car seats
Now, even though it doesn't detect passengers (or the car seats/children), the seats are still in "car-seat mode" - so the back vents stay on!

I turned the car on and off, and it's stayed that way. Here's hoping it's a permanent fix.


shingles - hopefully this helps you not have to manually turn on the rear vents every time!
 

shingles

Member
Feb 23, 2021
59
32
Texas, USA
I think I found a solution:
  • Take car seats out
  • Have adults sit in back 2 seats with no seat belts on
  • Click the Unbuckled button on the screen, and it goes to car-seat mode
  • Turn off car, install car seats
Now, even though it doesn't detect passengers (or the car seats/children), the seats are still in "car-seat mode" - so the back vents stay on!

I turned the car on and off, and it's stayed that way. Here's hoping it's a permanent fix.


shingles - hopefully this helps you not have to manually turn on the rear vents every time!
I am going to test that out later! Thanks!!
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
Bad news - tried the car this morning, and rear vents were turned OFF. I checked and "car-seat mode" was turned ON.

So I guess it still needs to detect those weights to enable the vents.

Any recommendations? I could try blankets under the car seats, but I don't want to make them unsafe. I wish Tesla had a software fix to ALWAYS enable them while keeping on AUTO.
 

VikH

Supporting Member
Nov 23, 2015
968
781
Midwest, USA
I’ve got a new 5-seat Model Y and absolutely loving it! One issue I did notice - the 2 rear seats are not detecting my 2 children in their car seats. They weigh 30 pounds and the car seat weighs 20 pounds - so 50 total.

I’ve read complaints about the occupant detectors being too sensitive, but none saying they weren’t sensitive enough. To make sure they weren’t defective I pulled out the car seats and sat in all 3 seats in the back, and each time the seat belt notification popped up.

The issue is the rear vents don’t turn on when Climate is set to Auto.

Is this normal for a 50 pound weight? Should I have a Mobile Tech out to look at it?
Why not install the car seats using the seat belts instead of the LATCH anchors? Also note that LATCH anchors. Most seat manufacturers require rear facing @ 65lbs and front @ 69 lbs (includes car seat weight), but some seat manufacturers may have lower limits.
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
Why not install the car seats using the seat belts instead of the LATCH anchors? Also note that LATCH anchors. Most seat manufacturers require rear facing @ 65lbs and front @ 69 lbs (includes car seat weight), but some seat manufacturers may have lower limits.
I tried plugging in the seatbelts, but that doesn’t trigger the rear vents to turn on. You think it would, but they’re only triggered by weight in the middle of the seat.
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
Update: I repositioned the car seats and now it will cycle from detecting it to non detecting it, depending on how my child is sitting (total weight or car seat + child is 50 pounds). Definitely annoying and is the reverse experience than what I've seen in the forums - other users reporting it's too sensitive.

Think I should have a Mobile Tech look at it, or is that just the design?
 

shingles

Member
Feb 23, 2021
59
32
Texas, USA
Update: I repositioned the car seats and now it will cycle from detecting it to non detecting it, depending on how my child is sitting (total weight or car seat + child is 50 pounds). Definitely annoying and is the reverse experience than what I've seen in the forums - other users reporting it's too sensitive.

Think I should have a Mobile Tech look at it, or is that just the design?
Do you have one of those seat protector pads? So mine is not working no matter what I try. We just manually turn it on each time we are in the car with the kid. I suppose having the mobile tech look at it is the only way to get this back into the Tesla system. Is there someone we can email to ask what is the official functionality?
 

teknoprep

Member
Jan 19, 2019
66
28
Florida
Do you have one of those seat protector pads? So mine is not working no matter what I try. We just manually turn it on each time we are in the car with the kid. I suppose having the mobile tech look at it is the only way to get this back into the Tesla system. Is there someone we can email to ask what is the official functionality?

I do have a seat protector! And yes, the manual says you shouldn't use one - so guessing that's going to be their official response. But no way I'm damaging the seats without using one.

I just wish they would enable it in software - the ability to leave the rear vents on without resetting every time.
 

dogmodes

Member
Jun 6, 2018
24
9
Michigan, USA
I second attempting a seatbelt install if you're doing latch. I know you said you plugged the belt in, but did you install with seatbelt rather than latch? I think it may make a difference depending on the type of seat you have. The seatbelt install on a convertible style or even base style seat should put extra force down on the seat where the latch just has it sitting there. I bet that extra force included with the weight of 15-20lb kid would be enough.
 

dogmodes

Member
Jun 6, 2018
24
9
Michigan, USA
So I thought about you when dropping my kid off this morning. She’s 6 and just into a booster which universally require latch to be used (don’t get me started on the missing middle seat latch issues on cars). I realized our last 2 cars we used seatbelt method on Britax click tight advocates and both got turned in with pretty mangled seats. We always used the protective covers too. You mentioned being worried about the seat so might want to keep that in mind, wrenching it down may have a permanent affect.

I agree it would be nice to just have it as an option. There’s so many little things like this that would probably be trivial to implement for them and most car companies have already done. Incase a tesla engineer reads this add that and the ability to set dome lights on door open and not just park.
 

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