Rear View Mirror
The rear view mirror has an automatic anti-dazzle function for when light from behind the car is too bright in the mirror (option in certain markets).
There is one photo sensor on the reverse of the rear view mirror and another on the front. Both sensors compare the intensity of the light through the windshield and from the rear of the vehicle. If the difference exceeds a certain value, the anti-dazzle function is activated to the required degree. The upper electronic module (UEM) receives and processes the signals from the two photo sensors.
The anti-dazzle function can be set to the customer requirements. For further information, see: Downloading Software And Replacing The Control Module
There are diodes in the rear view mirror above the mirror glass. These are for the seat belt reminder and for the PAD (passenger airbag deactivated) lamp.
The rear view mirror with automatic anti-dazzle can only be installed in the factory. Upgrading to, or removing an anti-dazzle rear view mirror cannot be carried out after market due to software limitations.
There are diagnostics for the functions in the rear view mirror.