Description & Operation: Notes

The electrochromic (EC) inside rear view mirror receives power, ground, and a reverse signal on the three wires that connect to it. It uses two light sensors to sense glare.

Fig 1: Mirror Connector Pinout

Courtesy of KIA MOTORS AMERICA, INC.

• The forward facing sensor determines if the outside light levels are low enough for the mirror to operate.
• The rearward facing sensor detects glare from lights behind the mirror. When glare is detected, it outputs a signal to the mirror to dim at the required level.
• The mirror dims to the level as directed by the rearward facing sensor. When the glare is no longer detected, the mirror returns to normal.
• When the vehicle is shifted into reverse, the mirror returns to normal.

Fig 2: Identifying Sensor Positions

Courtesy of KIA MOTORS AMERICA, INC.