2026 3500 interior lights

[Mark57]

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

[davester]

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

[Bikerjon]

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.

[newdude]

HDs 2024-2026 are the same so pinouts for a 2025 should work.  

[Mark57]

New dude your right same plug outboard BCM, most forward plug (black), number one pin slot.