[tjswarbrick]

Originally Posted by NorthernDancer

Way too soon. Did you not see little difference between your most worn and a new pad? Get yourself a Steelman manual brake guage set for less than $12 from Amazon or elsewhere.

Problem was with the Sensor.
Just had an inspection. OBD told them the rears were dangerously worn (2000 miles left.) They actually LOOKED and said "Nah. Brand new." (They were done, DIY by me, 1.5 years / 25,000 miles ago.) I did NOT replace the sesnsor when I did the rear pads - just plugged the old one back in. I didn't realize how it operates, and thought the interval could be updated electronically.
This time Fronts, OTOH, were shot - down to 3mm and rotors starting to score. I could wait until 2mm, but car was already there. I had them do OE rotors and my StopTech Street Performance pads up front, and BOTH sensors. Currently Vehicle Info tells me I've got 80,000 miles to go on the fronts, and 90,000 miles left on the rear brakes. Probably a bit optimistic, but sounds good!