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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 113 (MIRROR SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER MIRROR MALFUNCTION (WITH AAG)CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Trax Premier, AWD

Circuit/System Verification

2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify the scan tool Mirror Select Switch parameter changes between Left, Right, and None when cycling the S52 Outside Rearview Mirror Switch between the center, left and right positions.
    • If the parameter does not change 

      Replace the S52 Outside Rearview Mirror Switch.

    • Go to next step: If the parameter does change 
  3. Verify the scan tool Mirror Direction Command parameter changes between Up, Down, Right and Left while cycling the S52 Outside Rearview Mirror Switch UP, DOWN, RIGHT and LEFT.
    • If the parameter does not change 

      Replace the S52 Outside Rearview Mirror Switch.

    • Go to next step: If the parameter does change 
  4. Verify the A9A Outside Rearview Mirror - Driver moves when commanding the Driver Mirror Horizontal Movement Right/Left and Driver Mirror Vertical Movement Up/Down with a scan tool.
    • If the A9A Outside Rearview Mirror - Driver does not move RIGHT or LEFT or UP or DOWN 

      Refer to Circuit/System Testing - Driver Outside Mirror Movement Malfunction.

    • Go to next step: If the A9A Outside Rearview Mirror - Driver moves RIGHT, LEFT, UP and DOWN 
  5. Verify the scan tool Driver Mirror Vertical Position parameters are between 0.2 - 4.8 V and change when commanding the Driver Mirror Vertical Movement Up/Down with a scan tool.
    • If not between 0.2 - 4.8 V or does not change 

      Refer to Circuit/System Testing - Driver Mirror Position Sensor Circuit Test.

    • Go to next step: If between 0.2 - 4.8 V and changes 
  6. Verify the scan tool Driver Mirror Horizontal Position parameters are between 0.2 - 4.8 V and change when commanding the Driver Mirror Horizontal Movement Right/Left with a scan tool.
    • If not between 0.2 - 4.8 V or does not change 

      Refer to Circuit/System Testing - Driver Mirror Position Sensor Circuit Test.

    • Go to next step: If between 0.2 - 4.8 V and changes 
  7. Verify the A9B Outside Rearview Mirror-Passenger moves when commanding the Passenger Mirror Horizontal Movement Right/Left and Passenger Mirror Vertical Movement Up/Down with a scan tool.
    • If the A9B Outside Rearview Mirror-Passenger does not move RIGHT or LEFT or UP or DOWN 

      Refer to Circuit/System Testing - Passenger Outside Mirror Movement Malfunction.

    • Go to next step: If the A9B Outside Rearview Mirror-Passenger moves RIGHT, LEFT, UP and DOWN 
  8. Verify the scan tool Passenger Mirror Vertical Position parameters are between 0.2 - 4.8 V and change while commanding the Passenger Mirror Horizontal Movement Right/Left with a scan tool.
    • If not between 0.2 - 4.8 V or does not change 

      Refer to Circuit/System Testing - Passenger Mirror Position Sensor Circuit Test.

    • Go to next step: If between 0.2 - 4.8 V and changes 
  9. Verify the scan tool Passenger Mirror Horizontal Position parameters are between 0.2 - 4.8 V and change while commanding the Passenger Mirror Vertical Movement Up/Down with a scan tool.
    • If not between 0.2 - 4.8 V or does not change 

      Refer to Circuit/System Testing - Passenger Mirror Position Sensor Circuit Test.

    • Go to next step: If between 0.2 - 4.8 V and changes 
  10. Verify the A9A Outside Rearview Mirror - Driver and A9B Outside Rearview Mirror-Passenger adjust to the stored memory positions when operating the S47D Driver Seat Memory Switch.
    • Go to next step: If the A9A Outside Rearview Mirror - Driver and A9B Outside Rearview Mirror-Passenger adjust to the stored memory positions 
  11. All OK.
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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.