Brake pedal shaking well going over bump or braking.

so whenever I go over a speed bump or brake kind of quickly my brake pedal makes a shaking. It does it a lot more since I've gotten it , it started to get a lot more sensitive to that at about 1800 miles. I'm at 2000 miles and about 3 months in from buying it. Any idea what it is or if it is normal. Sorry if it has been covered before .
2016 AC trd sport.

 

I'm thinking maybe ABS.

 

Shaking side-to-side...?? Just what are you saying..?

 

^^ Agreed. The vehicle is seeing a loss of traction or something and is having the DME activate ABS.

 

if it's repeatable, take it in. doesn't sound normal. I typically brake before a speedbump and then coast over it, so I've never noticed any issues there. I have felt the ABS kick in once or twice, when braking over potholes.