Circuit/System Description
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The low washer fluid indicator is located in the instrument panel cluster (IPC). Ground is applied at all times from G100 through the windshield washer fluid level switch and the low washer fluid indicator signal circuit to the IPC. When the washer fluid is low, the switch opens and ground is removed from the low washer fluid indicator signal circuit to the IPC. The IPC then displays the Low Washer Fluid Level message.