Window Falls off Track on Toyota Corolla

The window regulator in the 2003 and 2004 Toyota Corolla were assembled using defective bolts that allow the window to fall off track during normal operation. The bolts stretch, loosen, and break, allowing the window glass to move freely inside the door, independent of the regulator.

The solution is to either replace the electric window regulator, or just the bolts, depending on the amount of damage done to the regulator.