GELAIDI Headlight Dimmer Switch for 2003–2007 Chevy GMC Cadillac – Direct-Fit OEM Replacement, ABS

GELAIDI’s headlight dimmer switch (part numbers 19381535, D1595G, 15194803) is a direct-fit replacement that restores headlight, parking lamp, instrument panel brightness and automatic headlight functions for 2003–2007 GM trucks and SUVs.

If your dash lights flicker, your instrument panel stays too bright or your headlight controls no longer respond, this OEM-style switch replaces the factory unit with a plug-and-play assembly engineered for reliable operation. Built from durable ABS with OE-like internal circuitry, the GELAIDI switch matches factory fit and function for many Chevrolet, GMC, Cadillac and Hummer models from the mid‑2000s.

How does this switch improve my truck’s lighting control?

Replacing a failing dimmer switch returns precise control over low beams, parking lamps, automatic headlamp mode and instrument-panel brightness. Instead of intermittent operation or stuck settings, you get consistent, smooth adjustment and reliable feature activation.

• Restores low beam, parking lamp and auto headlight functions
• Eliminates dash flicker caused by worn internal contacts
• Smooth rotary action for incremental instrument-panel brightness
• Includes dome override and OFF positions as original

Will this part fit my 2003–2007 Chevy, GMC or Cadillac?

The GELAIDI dimmer switch is designed as a direct replacement for specified GM models. Confirm compatibility by matching your vehicle year and the OEM part number; this helps avoid fitment issues and ensures the connector and mounting align with the factory opening.

• Compatible with 2003–2007 Chevrolet Silverado, Suburban, Tahoe, Avalanche models listed
• Fits 2003–2007 GMC Sierra and Yukon series and 2003–2006 Cadillac Escalade
• Also compatible with select Hummer H2 and newer Classic model designations
• Cross-references: 19381535, D1595G, 15194803, 1802-311218 and related OEM numbers

How difficult is installation and what tools are required?

Installation is straightforward for anyone comfortable removing a dash bezel and unplugging a multi-pin connector. The switch is an OEM-design, plug-and-play replacement; no splicing or special programming is required.

• Basic tools: trim pry, screwdriver or socket set to remove dash bezel
• Unplug the factory switch harness, swap switches, reconnect and test
• No wiring changes or coding needed—direct replacement fit
• Estimated time: 15–30 minutes for an experienced DIYer

What materials and testing back up the product’s reliability?

The switch housing uses scratch-resistant ABS and environmentally friendly materials for a smooth, soft-touch finish that matches OEM interiors. Internal circuit boards are manufactured to provide long service life and stable contact performance under normal vehicle conditions.

• Durable ABS housing resists wear from daily use
• OE-like internal circuitry for consistent electrical contact
• Designed and tested to deliver reliable operation and long life
• Covered by a 1-year unlimited-mileage quality guarantee

Who is this for: Drivers restoring proper lighting control on mid‑2000s GM trucks and SUVs—mechanics, restoration hobbyists and DIY vehicle owners—who need a guaranteed plug-and-play replacement for a faulty dimmer switch. If your vehicle is listed in the fitment range and you want an OEM-style replacement (cross-references: 19381535, D1595G, 15194803), the GELAIDI headlight dimmer switch returns factory functions without wiring changes and comes with a one-year quality guarantee for added confidence.