Yup. Caliper piston seized.
Happened to me this morning (~9 degrees, ice, snow).
Dragged the right rear on the snow for a bit 'till I realized what was happening and the ABS light came on.
Got it free by rocking forward/back a few times. Left side not too good either. Ebrake is not hanging up.
Nothing to adjust - time for new calipers.
Picked up new rotors and loaded remanufactured calipers (definitely the way to go, new hardware, pins, mounting frame) - paid $434 with a $160 core for the calipers. Final cost will be $274.
Gotta drag out the salamander heater for the garage and do it tomorrow.
Now I got an excuse to install the speed bleeders and bleed/flush with SuperBlue.
Stay tuned.
AL
