Standard Ignition CBS2420 Headlight Dimmer Switch

OE-Style Headlight Dimmer Switch

Standard Ignition CBS2420 is a direct-fit headlight dimmer switch for vehicles that use a combination switch with turn signal and high-beam functions. It is built for a proper restoration of the original switch feel and electrical operation on select Buick, Chevrolet, and GMC models.

With a black housing, rectangular female connector, and clip attachment method, this replacement switch is made for straightforward service work on the steering column combination switch assembly.

Key Features

• Direct-fit OE replacement for the original combination switch
• Combination switch functions with turn signal control included
• Latching high beam operator and momentary high beam flasher included
• Indicator markings included for clear driver operation
• Copper alloy conductors for strong electrical conductivity and low resistive loss
• Black finish with one rectangular female connector and 10 male pin terminals
• New replacement part from Standard Ignition, part number CBS2420

Detailed Description

Standard Ignition CBS2420 is a headlight dimmer switch engineered as an OE-style replacement for the factory combination switch. It restores high-beam switching, turn signal operation, and the related driver controls found in the original assembly. The copper alloy conductor design supports efficient current flow, while the robust construction is suited to the demands of professional repair work. This part number, CBS2420, is used for select applications including 2016-2019 Buick Envision, 2017-2019 Buick LaCrosse, 2018-2019 Buick Enclave, 2018-2019 Chevrolet Equinox, 2016-2019 Chevrolet Malibu without Automatic High Beam, 2018-2019 Chevrolet Traverse, and 2018-2019 GMC Terrain.

This part cross-references 1S15093 and DL7821 for the same application.

Common Issues This Part May Resolve

• Inoperative or intermittent high-beam switching
• Faulty turn signal control at the steering column
• Worn combination switch feel or poor contact response
• Broken indicator markings or unclear driver input points
• Electrical resistance caused by aging internal switch components

Installation Notes and Tips

Verify the vehicle’s original connector style, terminal count, and feature set before installation. This switch uses a clip attachment method and a single rectangular female connector, so matching the factory configuration is important for proper fitment. For 2016-2019 Chevrolet Malibu applications, confirm the vehicle is without Automatic High Beam before ordering. Professional installation is recommended to ensure correct steering column switch operation and proper function testing after replacement.

Quality Assurance

Standard Ignition manufactures this replacement switch with complete quality control throughout the production process. The design uses durable materials and copper alloy conductors to support consistent electrical performance and reliable restoration of the original switch function.