91040 wrote:... The consensus seems to be that it has to do with the anti-lock brake controller. So far it has been annoying but not dangerous.
Interesting. I've noticed the brakes becoming "grabby" as well, but never thought about it being in the anti-lock brake controller.
However, that would be consistent with what happened to me the other day: I had to stomp on the brakes to avoid an accident when a pickup cut me off on a 4 lane / 30 mph road. The ABS kicked in, but didn't feel like any other brake system I've felt in our other cars. Instead of the break peddle pushing back in a rhythmic pattern (like someone hitting the back of the peddle with a hammer), it felt more like a vibration.
The disconcerting part had to do with what happened next as I let up on the peddle before coming to a complete stop: the ABS system didn't disengage until I took my foot completely off the peddle. By then the car had come to a complete stop and I was checking the rear view mirror to see if someone was going to rear-end me. Luckily there was no one close behind me, so I pressed on the gas and the car took off like nothing had happened.
The next time I find myself alone on a street (and can do so safely) I plan on stomping on the break again to see if I can replicate the situation. Meanwhile I'll try putting the car into "Park" the next time the brakes feel "grabby" and see if that makes a difference.