I've developed a weird problem on our 2013. Moderately firm braking creates a mild thump like a warped rotor/pad deposit feel. Tried bedding them, no improvement. Tried replacing the rotors, no improvement. Tried calipers, no improvement.

Looked at the wheel speed sensors, they look fine. Logged them in techstream, they appear fine, all behave the same.

So I tried a few other techstream logs, and I have determined that the ABS is activating for no reason. The harder you stop the car, the worse the ABS activation becomes.

I'm thinking this is beyond my skill level and it will have to go in, but has anyone else experienced this?