ACDelco 20999338 GM Original Equipment Windshield Washer Fluid Level Sensor Alerts driver when washer fluid level is low, prompting a refill of the washer fluid reservoir Designed for exact plug-in connection to wire harness for easy installation GM-recommended replacement part for your GM vehicles original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function