2019 Corolla LE PCS not working

I just bought a brand new 2019 Toyota Corolla LE. It comes with the PCS but it does not beep even after setting it to the highest setting possible.
It only works when I’m in cruise control. According to the newest video Toyota has for this vehicle, if you don’t break within a certain distance it’ll beep and slow down for you (of course you still need to apply the brake to help slow it down more.) anyway, I know this sounds horrible but I got curious and tried it out on the road. On the highway and city. Got super close and there was no beep. Ended up braking really hard on my own. Anyone else have this issue?