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Posted

I have a 2024 Sierra and I saw in the 1500 section how to hook them up X1 pin 23 on the BCM, I just got a 2026 3500 and did a search could not find a topic,maybe my search was wrong.  If there is one can someone show me the thread, Thanks   Mark

Posted

Well, probably not a lot of '26 owners hacking up their trucks yet.  FSM with wiring diagrams aren't commonly available.

 

You MIGHT find the info you want on gmupfitter.com

Posted
15 hours ago, Mark57 said:

I have a 2024 Sierra and I saw in the 1500 section how to hook them up X1 pin 23 on the BCM, I just got a 2026 3500 and did a search could not find a topic,maybe my search was wrong.  If there is one can someone show me the thread, Thanks   Mark

Not sure if 26 3500 is the same wiring as a 25 1500 (Global B). But if it is. That subject has been covered in Modifications. Search Interior Light Modification.

  • 1 month later...

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