You may need to have the brakeline bled (drained of brake fluid) and add new brake fluid while making sure brakeline is air free. This is usually done by pumping the brake until the pedal becomes appropriately firm . Hope this helps .
depress brake pedal
What type of fuel do I use 2004 cadillac srx
the manual release lever is attached to the parking brake pedal assy
Brake light switch on the brake pedal is defective
Check to make sure you have power at the brake light switch, if you have power at the switch, depress the brake pedal, and check for power out of the switch, if no power out with the brake pedal depressed, you need a new brake pedal switch.
at the top behind brake pedal, don't remove the lower switch it for the cruise control
Should be that small pedal on the very left underneath the dash.
Pressing the brake pedal and putting the car in gear will release the parking brake.
If it's the same as the DeVille, it is located under the dash on the driver's side, behind and between the parking brake pedal and the brake pedal. There will be a large bundle of wires in front of it.
Faulty Vacuum Brake Booster.
cheack your break booster.
Should release when you put it in gear, otherwise theres a little lever on the top of the parking brake pedal