Tow Bar Lighting Recommendation for 2024 GMC Sierra 2500 with Animated Taillights
Updated 09/21/2026 | Published 06/05/2025
Question:
I HAVE A 2024 GMC SIERRA 2500 HD CUSTOMER IS FLAT TOWING IT. WE BOUGHT A TOW BAR FROM ETRAILER . MY QUESTION IS HOW DO I WIRE THE TAIL LIGHTS . THIS TRUCK HAS LEDS BUT THEY ARE CONTROLED BY A LIGHT MODULE AND THE TAIL LIGHT HAVE A LOGIC MODULE IN THEM THE LOGIC MODULE HAS A POWER AND GROUND WHEN TRUCK IS RUNNING. THE OTHER WIRES COME FROM LIGHTING MODULE WHICH JUST TELL THE LOGIC MODULE TO TURN ON WHICH EVER LIGHT IS REQUESTED BY THE DRIVER . WITH LTZ,HIGH COUNTRY AND ZR2 PACKAGE
asked by: JOHN H
Expert Reply:
Hey John, you'd want the part # BLU56HR for a diode wiring kit that fits the 2024 GMC Sierra 2500 with the animated taillights. I also attached a link on this page to a PDF that details how they install on the new style of taillights the truck has for you to check out as well.
David
9/14/2026
I believe my 2025 chevy 3500 has these same lights. I had a kit installed that had 1 diode for led lights that did not work. My lights also have a control module is this the right kit I would need and if so could you please post install instructions
Jameson C.
9/14/2026
Jameson C.
9/21/2026
Product Page this Question was Asked From
Blue Ox 6-Diode Tow Bar Wiring Kit for Towed Vehicles with Progressive / Animated Tail Lights
- Flat Tow Wiring Harness
- Splices into Vehicle Wiring
- Diode Kit
- Universal Fit
- 6 Round
- Blue Ox
more information >
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on Flat Tow Wiring Harness
Jameson C.
9/8/2025
Hey John, did the diode wiring kit work out for your Sierra's taillights? I'm asking because it could give others confidence when setting up their towing system.