Washer Fluid Level Indicator Malfunctions: Description
WARNING: This page is about a different car, the 1998 Oldsmobile Cutlass and 1998 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Low washer level switch closes when washer fluid level is low, and sends a discrete input to BFC. When washer fluid level input is low for at least 30 seconds, BFC will send a SPI serial data message to instrument cluster to illuminate low washer fluid level indicator. If low washer fluid level switch input is inactive for at least 30 seconds, low washer fluid level indicator will turn off.