Page: 73

Brakes

Electric parking brake

The electric parking brake acts on the rear wheels and is used to secure the vehicle when it is stationary.

Fig. 35: Button for electric parking brake

Applying the parking brake

• Pull button .
  The light indicator in the button and the brake warning light light up.

For information on warning lights and light indicators:

1. Please see chapter "Instrument panel" on page 136.
   

Manually releasing the parking brake

1. Ignition is switched on.

1. Press the brake pedal.
2. Press button .
   The brake warning light goes out.

Automatically releasing the parking brake
Despite the active parking brake, you can drive off as normal.

1. Engine is running.
2. Driver's door closed.
3. Driver’s seat belt fastened.

The electric parking brake detects the request to drive off and releases automatically.

If one of these prerequisites is not fulfilled, the electric parking brake is not automatically released when the driver attempts to drive off.

A message appears on the multifunction display. The brake warning light and the light indicator on the button flash.

For information on warning messages on the multifunction display:

1. Please see chapter "Warning and Information Messages" on page 327.

Activating the emergency braking function
In the event of failure of the conventional brakes, the vehicle can be decelerated significantly and brought to a stop using the electric parking brake.

• Pull and hold button .
  The brake warning light and the light indicator on the button flash.

To deactivate the emergency brake function:

• Release the button .

Abrupt deceleration
Emergency braking results in a very high braking force. This can endanger any following traffic and control over the vehicle may be lost.

• Only use the emergency braking function in an emergency.
• Do not use the emergency braking function when driving normally.

Responding to warning symbols

Brake warning light USA

Brake warning light Canada

If the electric parking brake cannot be fully applied when the vehicle is stationary, the light indicator on the button and the brake warning light flash.

1. Please see chapter "Warning and Information Messages" on page 327.

Footbrake

Vehicles without Porsche Ceramic Composite Brake (PCCB)
Even though the brake disks consist of alloyed gray cast iron, they will unavoidably start to corrode if the car is parked for an extended period. The brakes will tend to "rub" as a result.

The nature, extent and effects of corrosion depend on the amount of time the vehicle was parked, whether road salt or grit was spread and whether grease-dissolving agents were used in car washes.

If the braking comfort is noticeably impaired, it is recommended having the brake system checked by experts at an authorized Porsche dealer.