The Forward Collision Warning Plus (FCW+) system with mitigation provides the driver with audible warnings, visual warnings (within the EVIC), and may apply a brake jerk to warn the driver when it detects a potential frontal collision. The warnings and limited braking are intended to provide the driver with enough time to react, avoid or mitigate the potential collision. The minimum speed for FCW activation is 5 mph (10 km/h).
The primary sensors used for FCW include the forward facing radar located in the front of the vehicle in the grill texture and the forward facing camera located inside the vehicle near the rear view mirror. The forward facing radar using input from several other sensor to understand both driver intent and vehicle dynamics. These sensors included steering wheel angle, vehicle yaw rate, brake switch status, and throttle input. If the system determines the driver is actively driving and aware of the environmental conditions, it will suppress the warning assuming the driver is in control. Environmental factors also have impact on the function including snow, rain, fog, road condition and road slope.
NOTE: FCW monitors the information from the forward looking sensors as well as the Electronic Brake Controller (EBC), to calculate the probability of a forward collision. When the system determines that a forward collision is probable, the driver will be provided with audible and visual warnings and may provide a brake jerk warning. If the driver does not take action based upon these progressive warnings, then the system will provide a limited level of active braking to help slow the vehicle and mitigate the potential forward collision. If the driver reacts to the warnings by braking and the system determines that the driver intends to avoid the collision by braking but has not applied sufficient brake force, the system will compensate and provide additional brake force as required.
- If the system detects the collision is likely it will proceed through the following progressive steps (The system will be suppressed if the driver intervenes.)
If the driver does not respond to any of these steps the vehicle will continue toward the object and potentially impact the object in front. Advance Brake Assist If the driver does press the brake at any time during these steps and the system determines more brake force is required to avoid or mitigate the impact, the system will supplement additional brake force as required.
The Forward Collision Warning system is not intended to do the following:
NOTE: It is unsafe to test the FCW system. To prevent such misuse of the system, after 4 Active Braking events within a key cycle, the Active Braking portion of FCW will be deactivated until the next key cycle.
NOTE: The FCW system is intended for on-road use only. If the vehicle is taken off-road, the FCW system should be deactivated to prevent unnecessary warnings to the surroundings. If the vehicle enters 4WD Low Range, the FCW system will be automatically deactivated.
To reduce the number of false positives in previous systems, Chrysler has integrated Forward Facing Camera information with radar information to improve the robustness of the system.
- These improvements include redundant information to confirm automatic braking on stationary licensable vehicles which are classified as Cars, Trucks, Motorcycles, and Trailers.
NOTE: The system is not designed to replace attentive driving, it is only provided as assistance to the driver. Please see the owner's manual for more information.
NOTE: The default status of FCW is "On", this allows the system to warn you of a possible collision with the vehicle in front of you when you are farther away and it applies limited braking. This gives you the most reaction time to avoid a possible collision.
The FCW feature has three settings and can be changed within the Uconnect® System Screen:
NOTE: The FCW and active braking settings can only be changed when the vehicle is in PARK.
NOTE: This setting gives you the most reaction time.
NOTE: If FCW is set to "Off", "FCW OFF" will be displayed in the EVIC.
If the system turns off, and the EVIC displays "ACC/FCW Limited Functionality" or "ACC/FCW Limited Functionality Clean Front Windshield" momentarily, there may be a condition that limits FCW functionality. Although the vehicle is still drivable under normal conditions, the active braking may not be fully available. Once the condition that limited the system performance is no longer present, the system will return to its full performance state. If the problem persists, see your authorized dealer.
If the system turns off, and the EVIC displays:
This indicates there is an internal system fault. Although the vehicle is still drivable under normal conditions, have the system checked by an authorized dealer.
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