Circuit/System Verification

2019 Buick Envision BaseSECTION Circuit/System Verification
  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. 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).

  5. Verify the scan tool Park Assist System Status parameter is Enable.
    • 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 
  6. All OK.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.