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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 136 (Parking Assistance Systems) >> Diagnostic Information And Procedures >> Parallel Parking Assist System Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the correct operation of the parking assist system.
    • Go to next step: If the parking assist system functions properly 
  2. Ignition ON.
  3. Verify the scan tool Advanced Parking Assist Switch parameter changes between Active and Inactive while pressing and releasing the parallel parking assist switch.
    • If the parameter does not change 

      Refer to DTC B096B .

    • Go to next step: If the parameter changes 
  4. Verify the scan tool Park Assist System Status parameter is Enable.
    NOTE: After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 MPH).
    • If the parameter is not Enable 

      Refer to Diagnostic Aids  to determine the cause of the inhibit.

    • Go to next step: If the parameter is Enable 
  5. All OK.
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