One problem related to power assist brake has been reported for the 2001 Cadillac Deville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Cadillac Deville based on all problems reported for the 2001 Deville.
My wife was backing out of a parking space @ an arby's restuarant & when she put her foot on the brake pedal to stop & shift to drive the pedal went to the floor. She tried pushing the pedal , but it stayed on the floor & all the while her car was moving backwards. Her car rammed into the back-end of a pickup truck & stopped. Luckily she was not hurt nor anyone else.