How to Check Trailer Lights Using the FordPass™ App

2021 Ford F-150 Trailer Light Check Instructions

New for 2021, select Ford F-150 trucks will come equipped with a Trailer Light Check feature that lets you check your trailer light operation all from your smartphone. This step-by-step guide covers how to check your trailer lights using the new F-150 Trailer Light Check function on your FordPass™ App.

  1. Turn on the vehicle ignition and make sure the transmission is in park.
  2. Open the FordPass™ app and login with your username and password.
  3. Tap Vehicle, then tap Trailer Light Check.
  4. Go to the back of the trailer and press Start.

The vehicle and trailer lights will cycle in sequence:

  • Left turn signal
  • Right turn signal
  • Brake lights
  • Reverse lights (if equipped)