The topic of peculiar "brake assist" behavior was discussed elsewhere, but I can't seem to find the thread.
Anyways, I continue to notice a slightly odd inconsistency in the brake pedal action at very low speeds.
A typically scenario is like this:
I am pulling up to a stop light, using the brakes to slow down gradually and get ready to come to a stop behind the car in front of me. As I am doing this, the cars in front bunch together a little more closely so I ease back off the pedal a bit to "roll" forward a bit more, then ease back on... But now it seems to "grab" and slows me down suddenly (but just from like 5mph to 1mph), so I back off the pedal again since I wasn't quite ready to stop... Now this time the brake pedal seems numb, and I have to push it a lot harder than before to finally come to a stop.
When starting out slowly from a stop and "feathering" the brake pedal it seems OK. It is more when I have just slowed down a bunch (from say 40mph) and then try to modulate the pedal carefully to get into position that I find that pedal can sometimes seem overly grabby or overly numb.
I guess I attribute this to the "brake assist" function turning off or on.http://en.wikipedia.org/wiki/Brake_Assist
It seems like it is turning on in some cases which are no where near a "panic stop" situation.