It say nothing about the color of the bar. This setting was not always there. It does make sense that when they add a capability like that that it would be optional.
The manual also says that this setting activates physical braking. It says nothing of the color.
"
whereas power used by the regular braking system displays in gray."
Ok. Tesla does not always document everything. But here is how it works (approximately - any uncertainty is noted in line). I would do pictures but I keep my car at low SOC and I don't live in a refrigerator so I can't display what is needed.
If that "Apply Brakes When Regenerative Braking Is Limited" is DISABLED:
When NOT using FSD:
- If you have limited regen, you will see dots on the left hand side of the bar. This indicates some level of limited regenerative ability.
- When you release the accelerator, you will have limited regen. This may result in less slowing that you are accustomed to, depending on slope, how long you have been regenerating, etc.
- You will see green on the bar to show you your regenerative power. It may not be able to make it all the way to the dots depending on your speed, but you may still notice reduced braking even if you have not technically hit the regen limit, according to the bar.
- When you use the friction brakes manually, this will not display on the bar in any way.
When using FSD:
- Even if you have limited regen, these dots will disappear when FSD is in use.
- The bar that shows regenerative braking will only show regenerative braking in green.
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When FSD uses friction brakes, it will not display on the bar in any way.
If that "Apply Brakes When Regenerative Braking Is Limited" is ENABLED:
When NOT using FSD:
- If you have limited regen, you will see NOT dots on the left hand side of the bar. This is because limited regen does not matter; you don't need to know about it.
- When you release the accelerator, with limited regen, you will have limited regen. However, the brakes will be applied, and you will feel this if you cover the brakes. You will get the same braking behavior and "regen" profile as you would if you did not have regen limits.
- You will see green on the bar to show you regenerative power.
- With accelerator pedal released, you will see black on the bar to show you how much friction braking is being used (blended).
(I actually am not 100% sure of this - someone would need to confirm that this actually happens. Just don't have limited regen enough to remember - this is my recollection, but I may be confusing with when FSD is in use. Seems like maybe it doesn't because if it did I would be reminded of my limited regen...and I don't remember that happening...). In any case, in my opinion, it SHOULD work this way according to the manual...I think it doesn't though after consideration? Haha, someone can easily confirm I am sure.
- Manual brake application is not displayed on the bar in any way.
When using FSD:
- The bar that shows regenerative braking will show regenerative braking in green, and friction braking in black.
- If regenerative braking is limited, it will display more friction braking than it would otherwise.