Standard Ignition CBS-1038 Headlight Dimmer Switch - Front

Headlight Dimmer Switch for GM Trucks and SUVs

Standard Ignition CBS-1038 is a combination switch built for vehicles that need dependable lighting and wiper control in one assembly. It uses copper alloy conductors for strong electrical conductivity and low resistive loss, with 100% testing for mechanical and electrical switching performance.

Compatible With select 1999-2002 Chevrolet Silverado, Suburban, Tahoe, Avalanche, and GMC Sierra, Yukon applications with cruise control and the listed switch functions.

Key Features

• Bolt-on attachment method for direct replacement
• Male 4-pin connector with rectangular shape
• 34 blade terminals for the specified vehicle applications
• Combination switch functions for lighting, turn signal, hazard, cruise control, and wiper controls
• Includes cruise control cancel, on/off, resume, set, and speed adjustment functions
• Includes hazard light operator, turn signal control, windshield washer spray, wiper delay, wiper on/off, and wiper speed settings
• Plastic finish with new construction
• Standard Ignition CBS-1038 cross-references T Series CBS1038T for the same application

Detailed Description

Standard Ignition CBS-1038 is a headlight dimmer switch and combination switch assembly engineered for service replacement on GM full-size trucks and SUVs. It is listed for 1999-2002 Chevrolet Silverado 1500, Silverado 2500, Silverado 3500, Suburban, Tahoe, Avalanche 1500, Avalanche 2500, and 1999-2002 GMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon, and Yukon XL applications, including select front-position listings where noted. This part number is also referenced as CBS-1038 in service catalogs and should be matched to the vehicle’s connector, terminal count, and listed functions before installation.

The switch supports headlight dimmer operation along with turn signal, hazard, cruise control, and windshield wiper/washer controls. Standard Ignition builds the unit with copper alloy conductors and tests each part for switching performance to help maintain consistent electrical operation in daily service.

Common Problems This Part Can Address

• Intermittent or inoperative headlight dimmer function
• Turn signal or hazard switch failure
• Cruise control switch inputs that do not respond correctly
• Windshield wiper delay, speed, or washer control issues
• Worn or damaged combination switch contacts

Installation Notes and Tips

Verify the connector style, terminal count, and vehicle-specific fitment before replacement. This CBS-1038 switch uses a bolt-on attachment method and a male rectangular connector, so the original mounting and electrical layout should match the application. Confirm cruise control and wiper feature requirements against the vehicle listing, especially on 2002 Cadillac Escalade, Escalade EXT, Chevrolet Avalanche, and select Silverado, Sierra, Tahoe, Yukon, and Suburban configurations.

Quality Assurance

Standard Ignition states that this switch is built with robust materials and tested for both mechanical and electrical switching performance. The design uses copper alloy conductors to support reliable current flow in service applications.