Ford 2016 Fusion Owner's Manual page 211

System Limitations
WARNING
The Pre-Collision Assist system's
brake support only reduces collision
speed if you first apply your brakes.
You must brake as you would in any typical
braking situation.
Due to the nature of radar technology,
there may be certain instances where
vehicles do not provide a collision warning.
These include:
• Stationary vehicles or vehicles moving
below 6.2 mph (10 km/h).
• Pedestrians or objects in the roadway.
• Oncoming vehicles in the same lane.
• Severe weather conditions (see
blocked sensor section).
• Debris build-up on the grille near the
headlamps (see blocked sensor
section).
• Small distance to vehicle ahead.
• Large steering wheel and pedal
movements (very active driving style).
Damage to the front end of your vehicle
may alter the radar sensor's coverage area.
This may result in missed or false collision
warnings. Have an authorized dealer check
your radar sensor for proper coverage and
operation.
Fusion/Mondeo (CC7) Canada/United States of America, enUSA, First Printing
Driving Aids
208