The electronic parking brake in the Tiguan replaces the conventional handbrake. It's designed to hold your parked car securely, even if the onboard electric power supply fails.

All you have to do is drive off and the brake is released automatically, preventing your car from rolling back on hill starts.

Indicator lights in the instrument cluster and in the button, plus an operating sound, tell you when the parking brake has been activated. And because the conventional handbrake lever is no longer necessary, you get more storage space between the front seats. 

Article source: www.volkswagen.co.uk