Automotive Features Explained

Ford’s Blind Spot Monitoring System: How it Works


Let’s face it. Blind spots are tricky. But do you know what makes a blind spot a hell of a lot more annoying? Towing an 11,000-pound trailer behind you and having those blind spots double or triple in size. Enter the Ford blind spot monitoring system with trailer coverage.

The true name for the Ford blind spot monitoring system is the Blind Spot Information System (or BLIS® for short). Whatever you call it, it’s like having an extra pair of eyes on the road at all times.

The system involves blind spot monitoring, cross traffic alerts, and trailer coverage. Here’s how it works:

Blind Spot Information System with Trailer Coverage

BLIS uses radars hidden in the taillights to detect when a vehicle enters your blind spot. When it does, a yellow signal on your driver and passenger side mirrors flash to alert you. The light stays on the entire time the vehicle is in your blind spot. Once the light stops flashing, the vehicle’s either changed lanes or left your blind spot altogether.

BLIS’s detection area is actually pretty big. It covers all the way from your outside mirrors to almost 10 feet behind your bumper. Better safe than sorry.

Cross Traffic Alert

Cross Traffic Alert (CTA) does the exact same thing as the Ford blind spot monitoring system, only this time it works when you’re in reverse. If a vehicle tries to slip by while you’re backing up, Cross Traffic Alert will notify you with three warnings:

  1. A light on the corresponding side view mirror
  2. A chime
  3. A message in your Message Centre

How Does BLIS Work With a Trailer?

When you decide to hitch up a trailer, both CTA and BLIS are hidden in the attachable taillights. When you hook them up to whatever you’re towing, both systems are fully operational the second you start moving, both forward and backwards. The detection area stays the same as well.

Added Bonus: If snow, mud or dirt is ever blocking the sensors, you’ll get a warning in your truck’s Message Centre letting you know.