After that, if the risk of collision further increases after the warning light,
the brake support prepares the brake system for rapid braking. This may
be apparent to the driver. However, the system will not automatically
activate the brakes. The vehicle will not stop unless the driver presses
the brake pedal. If the brake pedal is pressed then braking is
implemented with full brake function, even if the force on the brake
pedal is light.
The collision warning system is active at speeds above approximately
5 mph (8 km/h).
Collision warning system limitations
Due to the nature of radar technology, there may be certain instances
where vehicles will not provide a collision warning. These include:
•
Stationary or slow moving vehicles below 6 mph (10 km/h).
•
Pedestrians or objects in the roadway.
•
Oncoming vehicles in the same lane.
•
Severe weather conditions (see also blocked sensor section).
•
Debris build-up on the grille near the headlamps (see block sensor
section).
•
Small distance to vehicle ahead.
•
Steering wheel and pedal movements are large (very active driving
style).
•
High interior temperatures, which may deactivate the illumination or
the warning lamps until the interior temperature reduces (audible
warning will alert the driver).
In addition, sun load and sunglasses may reduce the visibility of the
warning lamps. Therefore, it is recommended to keep the audible
warning on.
WARNING:
The collision warning system’s brake support can
only help reduce the speed at which a collision occurs if the
driver applies the vehicle’s brakes. The brake pedal must be pressed
just like for any typical braking situation.
Driving
234
2011 MKX
(mkx)
Owners Guide, 2nd Printing
USA
(fus)
