Instrument Cluster and Panel Illumination

Instrument Cluster and Panel Illumination

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

Backlighting System

The backlighting system consists of both dimmable and non-dimmable (fixed) illumination sources. The components of the backlighting system consist of:

- Adjustable pedal switch
- Ambient lighting switch (if equipped)
- Luggage compartment lid release switch
- Instrument panel dimmer switch
- Floor shifter
- Rear heated seat switches
- Rear sunshade switch
- Heated washer fluid switch
- Headlamp switch
- Message center switch
- Roof opening panel switch (if equipped)
- SJB
- Steering wheel switches
- Start switch (if equipped)
- Audio Control Module (ACM) (vehicles with navigation)
- Instrument Panel Cluster (IPC)
- Front Controls Interface Module (FCIM)
- Front Display Interface Module (FDIM) (vehicles without navigation)
- Door lock control switches
- Window control switches

Dimmable Backlighting

The dimmable illumination is used to provide backlighting to the IPC, switches, and control components (such as the FCIM and the FDIM) when the parking lamps are on.

If the exterior lamps are activated during daytime sunload conditions, the message center illumination remains at full intensity and does not dim from the instrument panel dimmer switch during this condition. If the vehicle travels under a bridge or a tunnel, the low level of ambient light causes the illumination level of the message center to change to the level set by the instrument panel dimmer switch. The message center illumination changes back to full intensity when the intense ambient light is restored.

The digital dimmer switch is a double detent rocker switch used to control all dimmable interior illuminated components, and to control the courtesy lamps. The first up detent increases dimmable backlighting intensity. The first down detent decreases dimmable backlighting intensity.

The second up detent turns on the courtesy lamps. The second down detent turns the courtesy lamps off unless other features are still requesting the courtesy lamps on.

The dimmable backlighting system provides dimmable backlighting to the following components:

- Adjustable pedal switch
- Ambient lighting switch (if equipped)
- Luggage compartment lid release switch
- Instrument panel dimmer switch
- SJB
- Floor shifter
- Rear sunshade switch
- Headlamp switch
- Heated washer fluid switch
- Message center switch
- Steering wheel switches
- Start/stop switch (if equipped)
- ACM (vehicles with navigation)
- IPC
- FCIM
- FDIM (vehicles without navigation)

Fixed Backlighting

The fixed (non-dimmable) illumination is used to provide backlighting to switches when the key is in the ACC or RUN position.

The fixed backlighting components are:

- Door lock control switches
- Window control switches
- Roof opening panel switch (if equipped)
- Rear heated seat switches