How do you adjust auto parking brake on citroen c4 Picasso?

To adjust the auto parking brake on a Citroën C4 Picasso, first, ensure the vehicle is on a level surface and the ignition is off. Then, locate the adjustment mechanism, typically found under the rear seats or near the rear brake assembly, depending on the model year. Using the appropriate tools, either tighten or loosen the cable to achieve the desired brake tension, ensuring the brakes engage and release smoothly. Finally, test the brake operation by engaging and releasing it several times before reassembling any components.