Standard Ignition CBS-1178 Headlight Dimmer Switch

Headlight Dimmer Switch for Buick LeSabre

Standard Ignition CBS-1178 is a headlight dimmer switch built for direct replacement service on select Buick LeSabre models. It combines lighting, wiper, washer, and turn signal control functions in one OE-style switch assembly for 2002-2005 Buick LeSabre applications.

• Fits 2003-2005 Buick LeSabre, N/A
• Fits 2002 Buick LeSabre, N/A
• Bolt-on attachment method with rectangular 7-connector layout
• Female and male connector design with 6 connector cavities and 6 pin terminals
• Includes indicator markings, latching high beam operator, momentary high beam flasher, and turn signal control
• Includes windshield washer spray, windshield wiper delay setting, and windshield wiper speed setting functions
• 12-volt electrical design with black plastic finish
• New part built with copper alloy conductors for low-resistance electrical flow

Standard Ignition CBS-1178 is engineered for drivers needing a replacement headlight dimmer switch for Buick LeSabre vehicles with integrated lighting and wiper controls. The switch is 100% tested for mechanical and electrical switching performance, and its copper alloy conductors help maintain consistent conductivity across the circuit. This part cross-references Dorman (e.g., 901-300) for the same application. The part number CBS-1178 is also useful when verifying the correct OE-style replacement before ordering.

Common Symptoms This Switch Can Address

• High beams that do not latch or flash properly
• Turn signal or directional indicator control failure at the column switch
• Intermittent windshield wiper delay or speed selection issues
• Washer spray activation problems from the switch assembly
• Dimmer switch response that feels inconsistent or worn

Installation Notes

Confirm connector shape, terminal count, and switch functions against the original unit before installation. This CBS-1178 uses a bolt-on mounting style and a rectangular connector interface, so matching the OE connector layout is important for proper operation. Verify all lighting and wiper functions after installation, including high beam latch, flash-to-pass, turn signal, washer spray, and delay settings.

Quality Assurance

Standard Ignition states that this switch is built with durable materials and tested for both electrical and mechanical switching performance. The CBS-1178 is a new replacement part designed to meet service-professional demands for dependable operation.