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Circuit/System Verification

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Cover the windshield with a blanket or other suitable item.
  3. Verify the A10 Inside Rearview Mirror face dims when shining a bright light into the rear light sensor
    • If the A10 Inside Rearview Mirror does not dim 

      Refer to Circuit/System Testing - Inside Review Mirror Dimming Inoperative

    • Go to next step: If the A10 Inside Rearview Mirror dims 
  4. Verify the A10 Inside Rearview Mirror face transitions from dim to bright while commanding the Backup Lamps Active and Inactive with a scan tool.
    • If the A10 Inside Rearview Mirror does not transition between dim and bright. 

      Refer to Circuit/System Testing - Day-Night Disable Malfunction

    • Go to next step: If the A10 Inside Rearview Mirror transitions between bright and dim states 
  5. All OK.
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