Your Ford F-150 has a few features that are designed to help alert you when a car is in your blind spot or approaching from either side when you’re backing up slowly.
How BLIS works
Any time you put your vehicle in drive and you are going faster than six miles per hour BLIS or Blind Spot Information System will turn on.
After that it’s always active when your vehicle is drive or neutral. When a vehicle enters into your left or right adjacent lane radar sensors in the rear of the vehicle detect it.
Warning lights on side mirrors
And BLIS warns you with a solid light on the corresponding side view mirror when the vehicle is within blind spot zone. The light will stay on until the vehicle has moved out of your blind spot.
When you activate your turn signal, BLIS will give you a secondary flashing light warning on the corresponding side view mirror when a vehicle’s within the blind spot zone.
And remember, the system only warns you of motorized vehicles, it does not detect bicycles, pedestrians or other objects.
How Cross-Traffic Alert works
The Cross-Traffic alert warns you of moving cars coming from either side when you’re in reverse or backing up and gives you three warnings, a light on the corresponding side view mirror, a chime, and a message in your message center.
Extreme weather conditions could block the sensors, but if that happens, you’ll get a warning message and a chime to let you know. And keep in mind, as with the most radar, infrared, and ultrasonic-type sensing system, there is the possibility of false alerts.