WARNING
You are responsible for controlling your vehicle at all times. The system is designed to be an aid and does not relieve you of your responsibility to drive with due care and attention. Failure to follow this instruction could result in the loss of control of your vehicle, personal injury or death.
The system does not detect vehicles that are driving in a different direction, pedestrians at night, cyclists or animals. Failure to take care may result in the loss of control of your vehicle, serious personal injury or death.
The system does not operate during hard acceleration or steering. Failure to take care may lead to a crash or personal injury.
The system may fail or operate with reduced function during cold and severe weather conditions. Snow, ice, rain, spray and fog can adversely affect the system. Keep the front camera and radar free of snow and ice. Failure to take care may result in the loss of control of your vehicle, serious personal injury or death.
In situations where the vehicle camera has limited detection capability, this may reduce system performance. These situations include but are not limited to direct or low sunlight, vehicles at night without tail lights, unconventional vehicle types, pedestrians with complex backgrounds, running pedestrians, partly obscured pedestrians, or pedestrians that the system cannot distinguish from a group. Failure to take care may result in the loss of control of your vehicle, serious personal injury or death.
The pre-collision assist system's brake support reduces collision speed only if you brake your vehicle before any collision. You must press your brake pedal as you would in any typical braking situation.
The system cannot help prevent all crashes. Do not rely on this system to replace driver judgment and the need to maintain a safe distance and speed.

Note:  The system does not detect, warn or respond to potential collisions with vehicles to the rear or sides of your vehicle.
Using the Pre-Collision Assist System
The system is active at speeds above approximately 5 mph (8 km/h).
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The system alerts you of certain collision risks. The system's sensor detects your vehicle's rapid approach to other vehicles traveling in the same direction as your vehicle.
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When your vehicle rapidly approaches another vehicle, a flashing visual warning appears and an audible warning tone sounds.
The brake support system assists you in reducing any collision speed by pre-charging the brakes. If the risk of collision continues to increase after the audio-visual warning, the brake support prepares the brake system for rapid braking. Brake support does not automatically apply the brakes. If you press the brake pedal, the system could apply additional braking up to maximum braking force, even if you lightly press the brake pedal.
You can adjust the warning system's sensitivity through your information display.See  General Information
Note:  If you perceive Pre-Collision Assist alerts as being too frequent or disturbing, then you can reduce the alert sensitivity, though the manufacturer recommends using the highest sensitivity setting where possible. Setting lower sensitivity would lead to fewer and later system warnings.
Blocked Sensors
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If a blocked sensor message appears in the information display, dirt, water or an object is blocking the sensor. The sensor is located behind a cover near the driver side of the lower grille. If anything blocks the sensor, your vehicle cannot see through the sensor, and the system does not work. Possible causes for the blocked sensor message and corrective actions are listed below.

Cause  Action 
The radar sensor cover in the grille is dirty or obstructed.  Clean the radar sensor cover or remove the obstruction. 
The surface of the radar sensor cover is clean but the message remains in the display.  Wait a short time. The radar may take several minutes to reset after you remove the obstruction. 
Heavy rain, spray, snow or fog in the air interferes with the radar signals.  The system is temporarily disabled. Shortly after weather conditions improve, the system automatically reactivates. 
Swirling water, snow or ice on the road surface interferes with the radar signals.  The system is temporarily disabled. Shortly after weather conditions improve, the system automatically reactivates. 

System Limitations
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 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.