Dimmable backlighting

When the parking lamps are ON, the SJB provides a pulse-width modulated voltage to the dimmable instrument panel switches and components. The instrument panel dimmer switch allows the brightness level of the dimmable backlights and displays to be adjusted.

The SJB communicates with the instrument cluster through the controller area network (CAN). The instrument cluster then increases or decreases the intensity of the instrument cluster backlighting accordingly. The dimmable components consists of:

• instrument cluster
• message center switch
• hazard flasher switch
• climate control assembly
• transmission range (TR) indicator
• convertible top switch (part of the overhead console) (if equipped)
• steering wheel switches
• headlamp switch