[tzs]

First read your owner's manual to see if it says anything about this.

My EV for example has a brake cleaning mode that turns off regeneration for approximately the next 10 times you use the brakes.

Using that is probably going to be safer than slamming on the brakes.

[AlexandrB]

If anything unsafe happens when you slam on your brakes, you need to get your car serviced. Just do it on a quiet street and check your rearview mirror for someone following too closely (a good habit any time you brake).