Automatic Day-Night Mirror Description and Operation
Inside Rearview Mirror with the Automatic Day-Night Feature System Operation
The inside rearview mirror uses 2 photocell sensors. One sensor is the headlight sensor, located on
the face side of the mirror. The headlight sensor is used to determine light conditions present at
the mirror face. The other sensor is the ambient light sensor, located on the rear of the mirror or
windshield side. The ambient light sensor is used to determine the exterior light conditions. With a
low exterior light condition detected, and a high light condition from behind the car, at the
headlight sensor, the inside rearview mirror will automatically darken the face of the mirror.
In the daytime, the mirror is in a normal state because of the high exterior light condition that is
indicated by the ambient light sensor. With the gear selector lever in the REVERSE position and
the Ignition ON/Vehicle in Service Mode, backup lamp supply voltage is supplied as an input to the
inside rearview mirror. The mirror monitors this input to disable the automatic day-night feature.
This allows the driver to see objects in the mirror clearly when backing up, even during the night.
Driver Outside Rearview Mirror with Automatic Day-Night System Operation (If Equipped)
The automatic day-night feature of the driver outside rearview mirror is controlled by the inside
rearview mirror. The inside rearview mirror supplies control and low reference to the driver
outside rearview mirror. At night, with the automatic day-night feature enabled, the driver outside
rearview mirror will automatically darken with the inside rearview mirror to reduce glare from
headlamps behind the vehicle.
Inside Rearview Camera Full Display Mirror System Operation
The inside rearview camera full display mirror is connected to the outside rearview camera via a
shielded coaxial cable. When the tab under the inside rearview mirror is pulled rearward, a view of
the area behind the vehicle displays on the mirror. Adjust the rearview mirror for a clear view of
the area behind the vehicle before turning on full display mirror. Use the button on the back of the
mirror to adjust the brightness of the display. Make sure the light sensor is not covered when
adjusting the brightness.
The inside rearview camera full display mirror may not work properly or display a clear image if:.
It is dark.
The sun or the beam of headlamps are shining directly into the camera lens.
Ice, snow, mud, or anything else builds up on the camera lens. Clean the lens, rinse it with
water, and wipe it with a soft cloth.
When the mirror detects that the camera is not sending a valid video signal, it “blue screens” with
a “no video” decal for 3 seconds, then reverts back to the mirror. Meanwhile, if a blue screen
keeps on displaying instead of the camera view, take the vehicle to your dealer for service.
Rearview Camera Full Display Mirror Block Diagram
A10
Inside
Rearview
Mirror
B87
Rearview
Camera