05 gmc Sierra traction control

[Curtis Barnard]

I have a 05 gmc Sierra that has a traction control button it's 2wd sle. It looks factory but I want to know if it is factory.

[carkhz316]

Yes, it is a factory option. I only know this because I've seen it mentioned in the owners manual of those trucks numerous times, despite never seeing it in real life. So, it sounds like you have a rare combination.

[Curtis Barnard]

I also have electric locking rear diff

[sefiroxx]

Check your rpo codes in the glove box. NW7 is the std traction control option.

[CamGTP]

If the RPO code in the glove box says G80, that is a mechanical locking diff. There is no electronic locking diff option.

[Curtis Barnard]

That's is what I was trying to say