Instrument Cluster and Panel Illumination

Instrument Cluster and Panel Illumination

The Instrument Cluster (IC) and panel illumination system consists of both dimmable and non-dimmable (fixed) illumination sources. The IC and panel illumination is used to provide backlighting to the instrument panel, switches, and control components when the parking lamps are on. The dimmable illumination intensity is adjustable by rotating the instrument panel dimmer switch either up to increase intensity or down to decrease intensity.

On vehicles equipped with autolamps, 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.

NOTE: If the battery is disconnected or discharged, the instrument panel dimmer switch requires re-calibration. Rotate the instrument panel dimmer switch from the full dim position to the dome ON position. This makes sure that all displays are visible under all lighting conditions.

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

- Adjustable pedal switch
- Audio Control Module (ACM)
- HVAC module
- Rear Entertainment Module (RETM)
- Four-Wheel Drive (4WD) switch
- Headlamp switch
- IC
- Message center switch
- Parking aid disable switch
- Power sliding rear window switch
- Roof opening panel switch
- Steering wheel switches
- Traction control switch
- Trailer Brake Control (TBC) module
- Upfitter switches

The fixed backlighting system consists of the following components:

- Door lock control switches
- Window control switches