A gas cap indicator is standard equipment on all instrument clusters. However, on vehicles equipped with the optional diesel engine, this indicator is electronically disabled. The gas cap indication appears within the odometer Vacuum Fluorescent Display (VFD) unit. The gas cap indicator consists of a textual gascap message which appears in place of the odometer information in the odometer display.The odometer VFD is soldered onto the cluster electronic circuit board, and is visible through a window with a smoked clear lens located on the lower edge of the tachometer gauge dial face of the cluster overlay. The dark lens over the VFD prevents it from being clearly visible when it is not illuminated. The gas cap textual message appears in the same blue-green color and at the same lighting level as the odometer information when it is illuminated by the instrument cluster electronic circuit board.The gas cap indicator is serviced as a unit with the VFD in the instrument cluster.