We were driving with the windows down, and my son had his arm out the window, and I began to raise it, and it bumped his arm. it went up, and later when my husband drove it, the window did not want to go back up, once it was down.
the front passenger window does not want to go up. on 2002 Cadillac DeVille
The window regulator may have failed on your 2002 Cadillac DeVille. This has been reported as a common problem by RepairPal. Please visit the following link for more information - http://repairpal.com/power-window-regulators-may-fail-and-cause-window-to-fall-into-door-274