Circuit/System Verification

2019 Chevrolet Blazer Premier, FWDSECTION Circuit/System Verification
  1. Verify no DTCs are present.
    • Go to next step: If no DTCs are present 
  2. Verify the A11 Radio calibrations are current.
    • If the radio calibrations are not current 

      Reprogram the A11 Radio and re-evaluate the concern.

    • Go to next step: If no update calibrations are available 
  3. Ignition ON, infotainment system ON.
  4. Verify the infotainment system successfully pairs with a compatible mobile device.
    • If the infotainment system does not successfully pair with the compatible mobile device. 
    1. Perform the 3 vehicle Factory Resets located in Setting>System>Return to Factory Settings.
    2. Verify the infotainment system successfully pairs with a compatible mobile device.
      • If the infotainment system does not successfully pair with a compatible mobile device.

        Replace the A11 Radio.

    • Go to next step: If the infotainment system successfully pairs with a compatible mobile device. 
  5. Verify audio can be heard while streaming from the device.
    • Go to next step: If audio can be heard while streaming from the device. 
  6. Verify the customers device can be paired with the infotainment system.
    • If the device can not be paired with the infotainment system. 

      Perform a reset on the device. Refer to device manufacture's information.

    • Verify the customers device can be paired with the infotainment system. 

      If the device still will not pair inform the customer the issue is with the device.

    • Go to next step: If the device successfully pairs with the infotainment system. 
  7. Verify audio can be heard while streaming from the device.
    • If audio can not be heard while streaming. 

      Ensure the volume on the device is turned up to an adequate level.

    • Go to next step: If audio can be heard while streaming. 
  8. All OK.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.