How do I enable Audi Pre Sense on my vehicle?

I recently purchased a new Audi and noticed it has Audi Pre Sense as a feature. How do I activate this feature and what does it do?

Audi Pre Sense is a safety feature that utilizes sensors to help detect potential collisions and take preventative measures to protect the vehicle and its passengers. To enable this feature, go to your vehicle's settings and select the 'Audi Pre Sense' option. Make sure it is turned on and calibrated correctly for optimal use.