One problem related to ignition has been reported for the 2004 Cadillac Deville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Cadillac Deville based on all problems reported for the 2004 Deville.
Consumer states: turned on ignition and car accelerated on its own. Had to push pedal all the way to the floor. Barely got it to stop. Thought at first that pedal was stuck. Got the vehicle to stop by turning off the ignition.