Probably need to re-calibrate your windows...
Restoring the Express up functionality (Front windows only)
Under low battery power conditions, Express Up only functionality may
be lost. To reset this function after restoring full battery power, pull the
switch to the Express Up position, hold the switch until the glass
reaches the stall position and continue to hold for 2 seconds. Push the
window switch DOWN and operate the window to the full down position.
Express UP will now be functional. Perform Express UP
re-calibration with door closed only. Calibrating with door open
will cause the window to continuously bounce back.
2007 Mustang GT/CS Convertible - AT - Redfire
Bama 91R-V2 Tune - Roush CAI - FRPP GTA Axlebacks - 3.31 Gears