LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2018 >> Enclave Premium, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> Rear Cross Traffic Alert System Malfunction >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool can communicate with the right side object sensor.
    • If the scan tool can not communicate with the right side object sensor 

      Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.

    • If the scan tool can communicate with the right side object sensor 
  3. Verify the scan tool can communicate with the left side object sensor.
    • If the scan tool can not communicate with the left side object sensor 

      Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.

    • If the scan tool can communicate with the left side object sensor 
  4. Verify that the rear cross traffic indicators alerts turn ON and then turn OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool.
    • If alert indicators do not turn ON and OFF 
    1. Verify the system is enabled.
      • If disabled, refer to diagnostic aids for cause of disable.
      • If enabled, test or replace the radio.
    • If indicators turn ON and OFF 
  5. All OK.
scientia non olet · About LEMON Manuals