Vacuum assisted brakes

The brake booster aids braking by using engine vacuum. If the engine stops, you can stop the vehicle by depressing the brake pedal. However, greater foot pressure on the brake pedal will be required to stop the vehicle and the stopping distance will be longer.
When the brake pedal is depressed slowly and firmly, you may hear a clicking noise and feel a slight pulsation. This is normal and indicates that the Brake Assist System is operating.
See also:
Volume and Beeps settings (models with navigation
system)
Volume and Beeps settings (models with navigation system)
The display as illustrated will appear when pushing the SETTING button, selecting the “Volume & Beeps” key.
Audio Volume:
To increase ...
Carlike Handling
As always, the FX handles well, in league with the likes of BMW's X5 and
Porsche's Cayenne — specifically the X5 xDrive35i and the base Cayenne, if
you're comparing price and powertrains. These co ...
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady pressure, but do not pump the brakes. The ABS will operate to prevent the wheels from locking up. Steer the vehicle ...
