See also:

Manual release
The parking brake can be released manually in the event of a power failure or electrical fault. Before releasing, secure the vehicle against rolling Before releasing the parking brake manually, ...

Actions in the event of a flat tire
Run-flat tires You can continue driving with a damaged tire at speeds up to 50 mph/80 km/h. Do not continue driving without run-flat tires If the vehicle is not equipped with run-flat tires ...

Releasing
Raise lever slightly, press the button and guide the lever down. ...