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Circuit/System Verification

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the inside rearview mirror face. The inside rearview mirror face should dim.
  2. Place the transmission in REVERSE. The inside rearview mirror face should transition from dim to bright.
    • If the mirror does not transition between the bright and dim states, refer to Inside Review Mirror Dimming Malfunction in Circuit/System Testing .
  3. Vehicle in PARK, shine a flashlight at the rear light sensor while observing the outside rearview mirror face. The outside rearview mirror face should dim.
  4. Place the transmission in REVERSE. The outside rearview mirror face should transition from dim to bright.
    • If the mirror does not transition between the bright and dim states, refer to Outside Review Mirror Dimming Malfunction in Circuit/System Testing .
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