Pre-Collision Assist - Pre-Collision Assist Limitations

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Pre-Collision Assist Limitations

Pre-collision assist depends on the detection ability of its camera and sensors. Any obstructions or damage to these areas can limit detection or prevent the system from functioning. See Locating the Pre-Collision Assist Sensors.

The system is active at 3 mph (5 km/h) and above.

Note: The pre-collision assist system automatically disables when you select four-wheel drive low, manually disable AdvanceTrac™, or select rock crawl mode.

Note: Brake support and automatic emergency braking are active up to 75 mph (120 km/h). If your vehicle has a radar sensor included with adaptive cruise control, then brake support and active braking are active up to the maximum speed of your vehicle.

Pedestrian Detection Limitations

Pedestrian detection is active at speeds up to 50 mph (80 km/h).

Pedestrian detection operates optimally when detected hazards are clearly identifiable. Certain situations can reduce system performance, examples are; where pedestrians are running, partly obscured, have a complex background, or when the system cannot distinguish them from a group.

2021 Bronco Owner's Manual