66DeVille Vert 76Coupe Delegance 07Escalade ESV 96Fleetwood 83Coupe Deville 70Calais
Mine did this too. I looked under there and the motor was trying to turn but couldnt move the screw drive. I put a screw driver on the screw drive and hit it with a hammer in a few different spots to unjam it and kept hitting the button for up and down while doing it and it broke it free. I read it on a forum for other cadillac cars. Still works 6 months later. Could add grease to keep it from happening again i suppose. Good luck.