LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2021 >> Transit Connect Titanium, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 703 (Side And Rear Vision) >> Diagnosis And Testing >> Blind Spot Information System >> Pinpoint Tests >> Pinpoint Test L: The BLIS (Blind Spot Information System) ® With Trailer Tow System Receives False Alerts.
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test L: The BLIS (Blind Spot Information System) ® With Trailer Tow System Receives False Alerts.

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. NOTE: Attaching a trailer can cause additional false alerts. False alerts should not be in excess of 5% of total alerts.

    Normal Operation and Fault Conditions 

    REFER to: Blind Spot Information System - System Operation and Component Description .

    Possible Sources 

    • False alerts

  2. L1 CHECK THE BLIS (BLIND SPOT INFORMATION SYSTEM) ® WITH TRAILER TOW SYSTEM RECEIVES FALSE ALERTS.

    • Verify the BLIS® with trailer tow system receives false alerts.

    Test drive vehicle with trailer to verify if alerts are continuously occurring. If continuously alerting ' 

    Yes  GO to Pinpoint Test A 
    No  The system is operating correctly at this time.