Strange Traction Control Behavior/activations

I have had a recurring strange issue with my 2018 Prius Prime since about 14,000 miles. (Currently has 30,527 miles on it) it seems that while I have the brakes applied and I hit a bump the TCS system activates and releases all brake pressure then quickly grabs again. I shrugged it off but today it almost caused me to rear end someone. I was going down a hill at about 30 miles per hour and there was a crack in the road that they had filled and it left a little bit of a raised edge in the road. I was following behind someone and applied the brakes I hit this little crack and my traction light began flashing and the brake pressure was released causing me to gain speed (rather quickly) almost into this guy's GMC Acadia. I then pushed the brake farther and the Traction control disabled and the car responded and I was able to avoid hitting him. This has happened 3 times and it's beginning to get concerning. This can't be the way the TCS system is designed to behave it also seems strange that TCS has the ability to completely remove brake pressure from you. I will say that each time the car recovered rather quickly and re applied the brakes but I'm wondering if this is something someone else has experienced. Between this, the auto high beams failing exactly a year after I bought the car, and rust forming under the handle of the trunk release button. I'm questioning what happened to Toyota? My 2010 never had any of these issues and also any issues that it did have Toyota was more than happy to help, now...not so much

 

Yeah it's just really strange. All the other cars I've owned (2010 Prius, 2014 Kia Sorento, 2015 Camry, and I've driven many rental Corolla's) have all been driven at the same speeds on the same roads and I remember hitting a very big bump in my Corolla while braking and TCS didn't intervene once. I think your right though it seems like the Prius computers are much more sensitive than literally any other Toyota vehicle and they respond very differently. I guess I shouldn't worry about it too much but it's still just something that is of concern. I guess because the Prime weighs more than the normal Prius and most other Toyota sedans it has more weight on it's suspension and it can cause more accidental activations of TCS which would make sense

 

I was actually following as close as the ACC was letting me at the 3 bars setting. I don't like using cruise downhill (even though the Prius has a much better ACC system than most cars) so I disengaged it with the brake pedal and continued applying the same pressure. He began slowing down to turn and if TCS didn't have its little episode I would have stopped with plenty of room to spare but because of the very steep downhill (Iowa actually has VERY ungodly hills in some areas) when TCS took my brakes away even for the half/full second that it did I gained speed very quickly therefore ALMOST hit him.

 

Yeah it's not the camera that failed but the cheap little button that Toyota puts to enable/disable the system is the culprit it was a very big problem in their Highlanders. My hypothesis is that Toyota has it positioned where your knees are and sometimes when I get out of my vehicle one of my knees will rub/knock the panel which the button sits and therefore it causes problems.

 

The reason ACC was still active was because the way the road works is this. 55 mph (had cruise set to 60) then you enter a weird part where you pass a gas station and 2 houses but the speed limit does not get reduced so no need to disengage. The GMC began to slow down before he hit the hill because his turn is right after you get down from the hill. ACC began slowing me down but also seeing the hill I disengaged it PRIOR to getting on the hill. I slowed down to about 25 miles per hour and began descending where he was still slowing down to make the turn. I pressed harder on the brake and at about 15 miles per hour the TCS system had activated and disengaged it was only for about half a second so I gained speed but it quickly recovered by then the Acadia was pretty much in the other lane completing his turn. So if I would have hit him at all it would have been very minimal. Keep in mind he didn't use a turn signal until the bottom of the hill so I thought he was going to still go straight at the bottom it caught be off guard and whatever. I didn't hit him and my Prime is still happily in the garage charging right now so whatever it's fine. I came here to get an answer to (what I thought) was a problem not get dogged on about my driving

 

Okay (sorry for so many questions) I just want a better understanding of this car. I've only owned 1 Prius before hand a 2010 and it was the absolute basic model you could get so stepping into the Prime is like a technology heaven.
So does the traction light flash when ABS activates? ABS has activated twice in my 2010 and it made a sound but it didn't flash anything or do anything on the guage cluster (I would imagine maybe Toyota changed it in the 4th gen)

 

Yeah, the Prius has never been strong in braking performance. I'm pretty sure every gen of Prius has had some issue with braking. I still Iove the car though.