Greg, can you elaborate how you by passed the warning?
I guess that's my cue for pictures eh?gvan - I just had the same exact problem occur on my car during the drive back from the Stampede/Monterey. "Brake Wear" message comes on - initially 15-20 minutes after starting the car, now almost immediately after starting. Pads are in great shape, so must be a broken/loose wire somewhere. Damn LA freeways - friggin' combat zone - probably jarred something loose.
The cause of my "BRAKE WEAR" warning was ....
(wait for it)
.... a worn out brake pad!
"A" pad - not all of them. Only one of the left front pads was worn out - the other three were just fine. As luck would have it, the pad that wore out was the one pad with the wear sensor wire attached to it. The attached photos show the wear sensor wire and how it was "worn" out.
Not sure why the one pad took all the abuse. Maybe the piston is sticking and not letting the pad relax after releasing the brakes.