Yes, it's on the screen. The Bolt is software controlled also, but you activate it with a physical stick by going into L mode.
I agree that in D it's unlikely that the brake lights will come on, but they are not only activated by the brake pedal itself but by the amount of negative g's. I'm not a huge fan of one pedal driving and usually leave my car in D and so may set the P2 for minimal regen. What I have become used to is the regen paddle but the P2 does not have one of those. Maybe I'll get used to one pedal driving at some point, but it's hard to teach an old dog new tircks.
Again, I'm specifically talking about the quick flick to toggle the "shift lever" in the Bolt, just as an example in this discussion. Keep flicking and it keeps toggling back and forth with each flick. It's not the shifting action of putting the EV into L mode, such as when coming off Park mode. It's really just a flick, and done hundreds of times during driving. It's the purpose designed by the Bolt engineers. Perhaps few EV drivers, even Bolt drivers, are aware of the convenience because it's not broadly boasted in the Bolt forum. Also I saw a preview of the new model of Bolt, but that's a different topic.
I can tell you for a fact that D mode does not flash the brake lights. Not just "unlikely." Not just a knowledge about negative g-force. How do I know for sure? Well I've actually invented a reflective mirror that I attach to the rear window so I can see exactly when the rear brake lights come on. You could say I'm an advanced Bolt driver.
The detector is actually a simple reflector. This reflector helps me understand the point when the brake lights come on during one-ped...
boltingnow.blogspot.com
As for the regen paddle on the steering column, it's another helpful additional control that I also use all the time, either in D or L mode. It's extra braking/regen while in L, which is really helpful when you need just a little more. It cancels cruise control with a tap. It's really another extra tactile control that, to me, is very welcomed in these new vehicles.
I can easily adapt to new driving modes, but for me as a current EV owner, going to rudimentary simple basic one-pedal driving alone without any of these extra tactile controls (shifter flick and paddle at steering column) is going backwards. New EV owners may feel like "old dogs learning new tricks" but I wouldn't want to go back.