Cadillac Escalade Illuminated Grille Harness

Standalone Harness Only

This is the 404 Parts standalone wiring harness for customers who already have, or are purchasing, a Genuine GM illuminated grille for a 2025–2027 Cadillac Escalade or Escalade ESV and need the correct harness to power it.

This harness does not add lighting to a standard Escalade grille. It is designed specifically to connect and power the Genuine GM illuminated grille using factory-style connectors with no cutting or splicing required.

Features

✔ 404 Parts Exclusive Design Developed specifically for the Genuine GM illuminated grille
✔ OEM-Style Connectors Clean plug and play installation with no cutting or splicing
✔ OEM-Grade Materials Built for a clean, factory-style installation
✔ Supports Full LED Operation Designed to properly power the illuminated grille functions
✔ Harness Only Ideal for customers who already have the correct Genuine GM illuminated grille

Vehicle Fitment

• 2025–2027 Cadillac Escalade
• 2025–2027 Cadillac Escalade ESV

Important

This listing is for the wiring harness only. It will not make your existing non-illuminated grille light up.

You must already have, or separately purchase, the correct Genuine GM illuminated grille.

Because this is a harness-only purchase, technical support and installation troubleshooting are not included. PDF for hookup provided, that is it.  We also cannot guarantee compatibility or operation with customer-supplied grilles that were not purchased or verified through 404 Parts.

If you want the complete setup with the correct grille, harness, and installation instructions, purchase our Illuminated Grille Conversion Kit instead.