Light Bar Lamp Indicator: Description
A light bar lamp indicator is standard equipment on all instrument clusters, but is only functional on vehicles equipped with the optional roof-mounted light bar. See Fig 1. This indicator is located above the fuel gauge and to the left of the speedometer in the instrument cluster.
The light bar lamp indicator consists of a stencil-like cutout of an icon in the opaque layer of the instrument cluster overlay. This icon is similar in appearance to the International Control and Display Symbol icon for "High Beam", but has an additional curved line beneath it to represent the forward roofline of the vehicle. The dark outer layer of the overlay prevents the indicator from being clearly visible when the it is not illuminated. An amber or blue Light Emitting Diode (LED) behind the cutout in the opaque layer of the overlay causes the icon to appear in amber or blue through the translucent outer layer of the overlay when the indicator is illuminated from behind by the LED, which is soldered onto the instrument cluster electronic circuit board. The color of the LED used is determined by the requirements of the market for which the vehicle is manufactured.
When the exterior lighting is turned On, the illumination intensity of the light bar lamp indicator is dimmable, which is adjusted along with the cluster illumination lighting using the panel lamps dimmer control ring on the left control stalk of the multi-function switch. The light bar lamp indicator is serviced as a unit with the instrument cluster.