Do Brake Lights Activate During P2 Regenerative Braking? Looking for Answers!

[CulGan_22]

I came across an interesting discussion in another EV forum about how the brake lights work when you’re using regenerative braking, especially when it slows the car down or brings it to a complete stop without touching the brake pedal.

So here’s what I’m wondering: If we’re only using regenerative braking, at what point (if ever) do the brake lights come on in the P2?

I’m a bit concerned about the possibility of getting rear-ended because the cars behind us might not realize we’re slowing down or stopping if we’re not actually pressing the brake pedal.

I know there are different standards for stop light signaling in Europe and North America, but they don’t always match up perfectly. Apparently, manufacturers have their own ways of handling this, so even if they meet the rules, the brake lights might not behave the same in similar situations.

THE BIG QUESTION: Does anyone here with a P2 know exactly how the brake lights work under different levels of deceleration? I’m looking for actual experiences or tests, not just guesses or opinions.

 

[MrInsensitive]

Remember, those are brake lights, not brake pedal lights. They kick on when the car's braking, no matter if you’re still chilling on the pedal or not. Even ICE vehicles slow down a bit when you lift off the gas, and guess what? You don’t see a whole lot of bumper-to-bumper action because of that! So no worries!

 

[CulGan_22]

Remember, those are brake lights, not brake pedal lights. They kick on when the car's braking, no matter if you’re still chilling on the pedal or not. Even ICE vehicles slow down a bit when you lift off the gas, and guess what? You don’t see a whole lot of bumper-to-bumper action because of that! So no worries!

I hadn’t really thought of it that way, brake lights are definitely more about the car slowing down than whether you’re pressing the pedal. I guess I was just overthinking it with the whole regenerative braking thing, especially since it feels different from what I’m used to in ICE cars.

It’s reassuring to know the lights kick on when the car is actually braking, even if I’m not touching the pedal. You’re right, we don’t see a ton of accidents just from lifting off the gas in regular cars, so it makes sense it wouldn’t be an issue here either. Thanks!

 

[Lbutera036]

Regen doesn't trigger the brake lights. Only physical braking does. While it might seem logical for regen to activate the brake lights, especially for more aggressive regen systems, current regulations don't require it. It's kind of like downshifting in a manual car – it slows you down, but it doesn't necessarily require brake lights. It's a bit of a gray area, and regulations might need to catch up with the technology.