General Description of Electronic Parking Brake:

The electronic parking brake replaces the conventional parking brake with a button in the center console; the conventional parking brake lever is no longer used.

The electronic parking brake works with the transmission via two electric motors to activate the rear disc brakes. The mechanical components are designed so that they will continue to hold the parked vehicle in place even if the vehicle electrical system loses power.

Indicator lamps in the instrument cluster and in the button indicate whether the parking brake is activated. There is also an operating noise to indicate that the brake is engaged.

Besides an easy operation via a button, the electronic parking brake also offers additional convenience and safety functions like the dynamic hill start and the AUTO HOLD function.

AUTO HOLD

Auto Hold keeps the vehicle from rolling when it is stopped without having to keep the brake pedal pressed. By doing this, the Auto Hold function provides an easier way to start driving from a stop.

The system works via the ABS/ESC hydraulic unit. If the vehicle is slowed down to a stop, the AUTO HOLD function saves the braking pressure last applied. The driver can release the brake pedal and all four wheel brakes will remain engaged.

If the ABS wheel speed sensors detects any rolling, braking force is automatically increased until the vehicle is stationary again.

This may be the case if the driver slowly brakes the vehicle to a stop on an incline. As soon as the driver presses the accelerator pedal again and releases the clutch on a manual transmission, the AUTO HOLD function will release the brakes again. For safety reasons, the function must be reactivated by pressing the button to the left of the shift lever.