2013 Audi Q5 / SQ5 — Owner's Manual
When stopping at a traffic signal or stopping in city traffic on vehicles with an automatic transmission, the parking brake can be applied. The vehicle does not have to be held with the footbrake. The parking brake eliminates the tendency to creep with a drive range engaged. As soon as you drive off, as usual, the parking brake is released automatically and the vehicle starts to move.
When starting on inclines, the starting assist prevents the vehicle from unintentionally rolling back. The braking force of the parking brake is not released until sufficient driving force has been built up at the wheels. To prevent rolling back unintentionally on an incline, do the following: Keep the switch pulled and depress the accelerator The parking brake stays applied and prevents the vehicle from rolling backward. You can release the switch once you are sure that you are developing enough driving force at the wheels by depressing the accelerator.
Depend ing on the weight of the rig (vehicle and trailer) and the severity of the incline, you may roll backwards as you start. You can prevent rolling backwards by holding the parking brake switch pulled out and accelerating just as you would when starting on a hill with a conventional handbrake. If you pull the switch and hold it above a speed of about 5 mph (8 km/h), the emergency braking function is initiated. The vehicle is braked at all four wheels by activating the hydraulic brake system.
The brake performance is similar to making an emergency stop.