Standard Ignition HLS1784 Headlight Switch

Headlight Switch for GM Fog Light Applications

Standard Ignition HLS1784 is a replacement headlight switch built for vehicles equipped with front and rear fog lights. It is a plug-in, snap-fit electrical switch with a 12-terminal layout and a plastic black-and-white finish for direct dashboard control function.

Key Features

• Headlight switch replacement for fog light-equipped GM applications
• 12 terminals with male pin terminals and one female connector
• Plug-in connector design with snap-fit attachment method
• Plastic construction with black and white finish
• Switch function for lighting control operation
• Standard Ignition HLS1784 part number for catalog matching

Detailed Description

Standard Ignition HLS1784 is a direct replacement headlight switch for select 2020 Chevrolet Tahoe, 2020 GMC Yukon, and 2020 GMC Yukon XL models with front and rear fog lights. The switch uses a single plug-in connector, male pin terminals, and a snap-fit mounting style to match the original electrical interface and dash control layout. If you are searching for a 2020 Chevrolet Tahoe headlight switch with front and rear fog lights or a 2020 GMC Yukon headlight switch replacement, HLS1784 is the cataloged part number to reference.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Solve

• Inoperative headlight switch function
• Faulty fog light control on the dash
• Broken or worn switch contacts
• Intermittent lighting control response
• Replacement needs after electrical switch failure

Installation Notes and Tips

Verify the vehicle is equipped with front and rear fog lights before ordering. Confirm connector style, terminal count, and dash mounting style against the original switch. For 2020 Chevrolet Tahoe, 2020 GMC Yukon, and 2020 GMC Yukon XL applications, match the OE connector and terminal layout to ensure proper fitment and function. Standard Ignition HLS1784 should be installed by following the vehicle service procedure for the lighting control panel.

Quality Assurance

Standard Ignition supplies electrical replacement parts for OE-style service applications. HLS1784 is built with a plastic housing and application-specific connector design to support accurate replacement of the original headlight switch assembly.