Overview
Dimmable Illumination
Dimmable illumination provides backlighting to switches and control components when the parking lamps are on. The instrument panel dimmer switch is used to increase or decrease the level of intensity for the dimmable backlit components. The BCM is the master module that controls the dimmable illumination.
Dimmable backlit switches and components are:
When the autolamp feature activates during the daytime, the message center illumination remains at full intensity and can not be dimmed using the instrument panel dimmer switch. If the vehicle travels under a bridge or through a tunnel and a low level of ambient light is detected, the illumination brightness of the message center changes to the last level set by BCM. The message center illumination changes back to full intensity when the intense ambient light is restored.
Non-Dimmable Illumination
The non-dimmable illumination is on when the delayed accessory is active. The delayed accessory is active:
The second row rear seat control, third row rear seat control and liftgate release switches are non-dimmable.
Description and Operation - Instrument Panel and Interior Switches Illumination - System Operation and Component Description
Push the lever up or down to operate
the windshield wipers.

A - Single wipe.