3 ms·

Does the Tesla always activate its brake lights when slowing down? (I have an EV6, and I don't even know if brakes lights come on when I'm using regen as oppose

Does the Tesla always activate its brake lights when slowing down? (I have an EV6, and I don't even know if brakes lights come on when I'm using regen as opposed to the brake pedal) When I'm driving and traffic is stopped ahead, I used to always brake not because I had to, but as an indication to the car behind me.

fortylove 4y ago
Thanks for asking this. I've never thought of the implications of re-gen braking when slowing down!
- yellow_postit 4y ago
  Searching around seems inconsistent across different brands/models/model years (eg Bolt behavior changed recently). As one pedal driving becomes more prevalent might be something in need of a standard. For Tesla Model Y: > If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down. Source: Model Y manual: https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB071-C0F6-474D-8A45-17BE1A006365.html https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB07...
- tyingq 4y ago
  Might be a nice addition for other cars, for example, when you aggressively downshift and decelerate that way.
gnicholas 4y ago
According to this article [1], the brake lights do come on. But the article is from 2021, so who knows if that is still true (or if it was ever true for all Teslas, since they only tested one). 1: https://www.greencarfuture.com/electric/does-regen-braking-turn-on-brake-lights#Case_in_Point_Tesla_Model_3 https://www.greencarfuture.com/electric/does-regen-braking-t...
- brianwawok 4y ago
  It is. You can see it on your little icon that the brakes turn on. Anything reasonably fast shows brakes.
chollida1 4y ago
https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB071-C0F6-474D-8A45-17BE1A006365.html#:~:text=If%20regenerative%20braking%20is%20aggressively,that%20you%20are%20slowing%20down.&text=In%20snowy%20or%20icy%20conditions,of%20traction%20during%20regenerative%20braking https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB07.... Yes, but it depends on the speed you are going > If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down.
throwthroyaboat 4y ago
Yes, brake lights are illuminated under any deceleration above a certain threshold, or application of the brake pedal.
jacquesm 4y ago
Yes, as soon as you hit regen your brake lights come on. I tested this with a Honda Hybrid a long time ago to make sure. If your car has a diagram somewhere that you can display while driving you will actually see it on the display.
- gnicholas 4y ago
  This isn't a universal truth. It varies by vehicle, and apparently even by what level of regen is selected. https://www.greencarfuture.com/electric/does-regen-braking-turn-on-brake-lights https://www.greencarfuture.com/electric/does-regen-braking-t...
  - jacquesm 4y ago
    "Conclusion: Do Brake Lights Activate During Regenerative Braking? Yes, but Stay Alert" Seems pretty obvious, the idea is that engine braking would also cause your car to slow down without lighting up the brake lights so any kind of slowdown at that level would not normally engage the brake lights. But as soon as you slow down more than that the lights will come on, making its behavior pretty close to what you'd expect from a regular car with and ICE lacking regenerative braking. Or would you suggest that a normal car should engage it's brake lights when you let go of the accelerator and engine brake? (I can see a case for that.)
cptskippy 4y ago
Yes, even the little CGI model of your car in the UI even shows your brake lights illuminate. AFAIK the the CGI representation of the car accurately shows tire position, blinkers, headlights, doors, etc. In comparison, my 2015 Leaf doesn't illuminate the brake lights during regen but it's regen is significantly less than my Model 3.

fortylove 4y ago

Thanks for asking this. I've never thought of the implications of re-gen braking when slowing down!

yellow_postit 4y ago
Searching around seems inconsistent across different brands/models/model years (eg Bolt behavior changed recently). As one pedal driving becomes more prevalent might be something in need of a standard. For Tesla Model Y: > If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down. Source: Model Y manual: https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB071-C0F6-474D-8A45-17BE1A006365.html https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB07...
tyingq 4y ago
Might be a nice addition for other cars, for example, when you aggressively downshift and decelerate that way.

gnicholas 4y ago

According to this article [1], the brake lights do come on. But the article is from 2021, so who knows if that is still true (or if it was ever true for all Teslas, since they only tested one). 1: https://www.greencarfuture.com/electric/does-regen-braking-turn-on-brake-lights#Case_in_Point_Tesla_Model_3 https://www.greencarfuture.com/electric/does-regen-braking-t...

brianwawok 4y ago
It is. You can see it on your little icon that the brakes turn on. Anything reasonably fast shows brakes.

chollida1 4y ago

https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB071-C0F6-474D-8A45-17BE1A006365.html#:~:text=If%20regenerative%20braking%20is%20aggressively,that%20you%20are%20slowing%20down.&text=In%20snowy%20or%20icy%20conditions,of%20traction%20during%20regenerative%20braking https://www.tesla.com/ownersmanual/modely/is_is/GUID-3DFFB07.... Yes, but it depends on the speed you are going > If regenerative braking is aggressively slowing Model Y (such as when your foot is completely off the accelerator pedal at highway speeds), the brake lights turn on to alert others that you are slowing down.

throwthroyaboat 4y ago

Yes, brake lights are illuminated under any deceleration above a certain threshold, or application of the brake pedal.

jacquesm 4y ago

Yes, as soon as you hit regen your brake lights come on. I tested this with a Honda Hybrid a long time ago to make sure. If your car has a diagram somewhere that you can display while driving you will actually see it on the display.

gnicholas 4y ago
This isn't a universal truth. It varies by vehicle, and apparently even by what level of regen is selected. https://www.greencarfuture.com/electric/does-regen-braking-turn-on-brake-lights https://www.greencarfuture.com/electric/does-regen-braking-t...
- jacquesm 4y ago
  "Conclusion: Do Brake Lights Activate During Regenerative Braking? Yes, but Stay Alert" Seems pretty obvious, the idea is that engine braking would also cause your car to slow down without lighting up the brake lights so any kind of slowdown at that level would not normally engage the brake lights. But as soon as you slow down more than that the lights will come on, making its behavior pretty close to what you'd expect from a regular car with and ICE lacking regenerative braking. Or would you suggest that a normal car should engage it's brake lights when you let go of the accelerator and engine brake? (I can see a case for that.)

cptskippy 4y ago

Yes, even the little CGI model of your car in the UI even shows your brake lights illuminate. AFAIK the the CGI representation of the car accurately shows tire position, blinkers, headlights, doors, etc. In comparison, my 2015 Leaf doesn't illuminate the brake lights during regen but it's regen is significantly less than my Model 3.