Power brakes function only when the engine is running

The power brakes utilize vacuum pressure which is only created when the engine is running. Never let the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, considerably higher pressure will be required on the brake pedal to compensate for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is switched off when the vehicle is rolling. The brake pedal feels harder than usual.
See also:
The radar sensor and its limitations
In addition to being used by ACC, the radar sensor is also used by Distance Alert
(see page 165) and Collision Warning with Full Auto-brake and Pedestrian Detection
(see page 173). This sensor is ...
Changing a wheel
1. Apply the parking brake and put the gear
selector in P.
2. Take out the jack*, lug wrench*, the towing
eyelet and the wheel cover removal tool*
stowed under the floor of the trunk.
3. Remov ...
Power tailgate
Power tailgate closing button ...
