To calibrate the Pro Trailer Backup Assist system on a 2021 Ford F-150, follow these detailed steps:

Preparation

• Make sure the ignition is in the "ON" position.
• Connect the trailer to the truck and ensure all electrical connections are properly made.
• Ensure the trailer is parked on a flat, level surface.
• Gather the trailer's measurements. You will need the length from the hitch to the center of the trailer axle(s).

Initiate Calibration

• Start by pressing the "Pro Trailer Backup Assist" button on the dashboard to bring up the setup menu on the touchscreen.
• Select "Add Trailer" and follow the on-screen prompts.
• Enter the name of the trailer when prompted.

Enter Trailer Measurements

• Input the specific measurements for your trailer, such as its length from the hitch to axle centerline.
• If your trailer has multiple axles, measure to the center between the axles.
• Confirm the measurements on the screen when prompted.

Apply the Sticker

• The system includes a special sticker that you need to apply to the trailer.
• Place the sticker on the trailer’s tongue at a location that remains visible to the system’s camera. Ensure it is centered and straight.
• Use the on-screen guide to ensure the sticker is positioned correctly. The system may provide a visual indicator for proper alignment.

Final Calibration

• Once the sticker is applied and the measurements are entered, the system will guide you through a calibration process.
• You might be asked to slowly drive the vehicle and trailer in a straight line for a short distance.
• The system will confirm when calibration is successful. If it does not, you might need to realign the sticker or re-enter the measurements.

Verification

• After calibration, verify the system’s operation by activating the Pro Trailer Backup Assist and attempting a controlled trailer backup.
• If the system works properly, you are good to go. If not, you may need to repeat the calibration steps.
• Refer to the vehicle’s owner's manual for any additional information or troubleshooting assistance.

By following these steps carefully, you should be able to successfully calibrate the Pro Trailer Backup Assist system on your 2021 Ford F-150, ensuring a smoother and more controlled trailer backup experience.