I guess I don't know where to find " Settings > Driver+ > Regen Brake Assist. "
Maybe it's not available on standard pack models.Hm... should be just below the last one:
I never knew there was a setting before this thread. So my brakes were helping the whole time. Bleh. One of my favorite things about EVs is the longevity of the pads due to regen. I’ve since turned the setting off
Yes, I think this is the best - this way you control the friction braking in 90% of the time. Otherwise, especially when regen is limited, it will just eat your breaks during 10k miles. And overheat them (as it will not pump, but instead apply the same amount of breaking)
My 2015 Model S had this issue. Front pads were all but seized at 5 years and 50k miles.
Not sure why you believe manual application of the brakes will yield less brake wear than if a servo does it. Turning off brake assist doesn't give you more regen; it only makes up in friction brake force what is unavailable by regen due to a cold battery. It will not overheat your brakes.
I don't think we have hard data on D+ using physical brakes. This seems to be one of those rumors that someone mentioned they 'thought' it worked this way and it continuously becomes parroted within an echo chamber to the point where everyone accepts it as true.
I don't think you understand why manual is better than an automatic system. With auto on it can be using brakes where regen would work and you have no say in when the car thinks to apply the brakes vs regen. In manual mode brakes aren't used unless you apply the brake, so 90% you are using regen. In the blended mode my guess is that regen drops to 70% of the time. This will lead to faster pad wear. Also, service confirmed this on my first 7,500 mile service. Service quote, " I would turn the auto blending off if you want to maintain your brakes life, in auto mode it uses the brakes significantly more than with it turned off."
Caliper pistons are "greased" by the brake fluid, which is going to age regardless of use. If you live somewhere dry, your fluid will last longer than if you're somewhere that has regular high humidity. Rivian is recommending brake fluid flushes every three years, but they aren't testing your existing fluid at all to help inform you for next flush.
Regen Brake Assist doesn't differentiate between type of braking, it's green all the way to the bottom even if you have no regen available at all. I wish they'd make it differentiate.I feel like the indicator is there, just likely not glaringly obvious what is happening to the majority of drivers.
If the Regen Brake Assist option is turned on, I would assume it is using some amount of hydraulic braking unless you see that you are getting full regen power from the power meter. Not the most concise indicator but, its there.
Brake assist was introduced with OTA 2023.50.01. Settings > Driver+ > Regen Brake Assist. It's set to on by default, hence, referred in other posts as an opt-out if you wish not to have it. As described in the onboard UI, it blends in the hydraulic brakes as needed under certain conditions—where regen is reduced due to high SOC or during long descents. What isn't known is if the hydraulic brakes are also used, without driver's knowledge, outside of these conditions. And some people are speculating it does because of the uneven wear they are observing.
Are you sure? I thought I read here on site from one of the Geeks that the brakes were applied in regen slowing or just letting up on acclelerator causing the vehicle to come to a stop. If high regen is selected, the brakes were implemented.
