Interior rearview mirror
The interior rearview mirror has an auto-dim function that helps reduce glare from following vehicle's headlights.
Auto-dim function
The interior rearview mirror’s auto-dim function is controlled by two sensors: one pointing forward (located on the forward-facing side of the mirror, which monitors the amount of ambient light) and one pointing rearward (located on the side of the mirror facing the driver at the upper edge, which senses the strength of following vehicles' headlights), and work together to help eliminate glare.
Note
Obstructing the forward sensor with e.g., parking stickers, transponders, etc., or the rear sensor by placing objects on the parcel shelf or the rear seat in such a way that light is prevented from reaching the sensor will reduce the auto-dim function in the rearview mirror.