There are several reasons why a Cadillac DeVille may have trouble opening its doors. Some possible causes include:
# Issues with the locking system: If the car's locking system is faulty or damaged, the doors may remain locked and won't open as usual.
# Issues with the remote control: If the car's remote control isn't working correctly, the doors may not open with it.
# Issues with the door opening mechanism: If the door opening mechanism is damaged or broken, the door won't open even if attempted from the inside or outside.
# Issues with the battery: If the car's battery is dead or drained, the electrical system may not function correctly and the doors may remain locked.
# Issues with the electrical system: If there is any problem with the car's electrical system, the doors may remain locked and won't open.[br]