What Causes Brakes To Stick. When brakes lock up due to controller issues. This causes the brake oil to flow into pistons making the caliper stick.

I popped the bleeder open and got a little squirt out of the left side and a less of a squirt out of the right. If the calipers are in working order and brake sticking or locking occurs at all four wheels then the problem may be with the master cylinder. How to test brakes in your car.
This is quite a common cause for brake caliper sticking.
Video tutorial on the 4 things which will cause your disc brake assembly to stick on. 2 Brake controller failure. The caliper slides when the brake line has rust. This is quite a common cause for brake caliper sticking.
