Instrument Panel Illumination

INSTRUMENT CLUSTER AND PANEL ILLUMINATION

The following displays are dimmable:

Displays
- audio display, switches and clock
- message center (if equipped)
- odometer

The following components are dimmable:

Backlights
- instrument cluster
- instrument panel dimmer switch
- headlamp switch
- front climate control assembly
- auxiliary climate control assembly (if equipped)
- driver door lock switch
- passenger door lock switch
- driver window switch
- passenger window switch
- power vent window switch
- heated backlight switch
- rear integrated control panel (RICP)
- DVD player (if equipped)
- message center switch (if equipped)
- overhead console
- steering wheel control switches
- traction assist/parking aid disable switch
- adjustable pedal switch

PRINCIPLES OF OPERATION

Instrument Cluster and Panel Lighting - Dimmable
The instrument panel dimmer switch allows the brightness level of the backlights and displays to be adjusted dependent upon the headlamp switch position and the instrument panel dimmer switch position. The instrument panel dimmer switch sends a signal to the smart junction box (SJB) which then sends a pulse width modulated (PWM) dimming signal to the instrument cluster, the dimmable LEDs, and the dimmable incandescents.

When the headlamp switch is in the parking lamp ON, headlamp ON, or the autolamp ON position and the autolamp feature is active, synchronized dimming of the dimmable components are controlled by the instrument panel dimmer switch.

All backlighting will be disabled when the battery saver function has been activated.

Fault Management
The dimmable backlighting will default to 100% intensity if an instrument panel dimmer switch failure occurs.

Instrument Cluster and Panel Backlighting - Dimmable
The instrument panel dimmer switch allows the brightness level of backlights and displays to be adjusted. When the headlamp switch is in the OFF position or the autolamp switch is in the ON position with the autolamp feature inactive, displays will be illuminated at maximum daytime brightness while backlights will not be illuminated.

When the headlamp switch is in the parking lamps ON, headlamps ON or the autolamps ON position and the autolamp feature is active, synchronized dimming of the backlights and displays can occur with the panel dim switch.

With the ignition switch in the RUN position, the audio unit, message center and odometer displays will be dimmable. With the ignition switch in the ACC position or with accessory delay feature enabled (ignition switch in the OFF position), only the audio unit display will be dimmable.

When the interior lamp mode switch (part of the instrument panel dimmer switch) is in the FOOT or OFF position, the synchronized dimming will be set at a 3/4 brightness level while the DOME position will provide maximum brightness.

All backlighting will be disabled when the battery saver function has been activated.

Fault Management
The dimmable backlighting will default to 100% intensity if an instrument panel dimmer switch failure occurs.