Not sure on part numbers, but as others have stated in this thread, you don't really need to spend the money on the harness. It is very easy to to run a positive and a ground wire, so that you don't need the harness.
There was no Junction Block like 2007-2013.... Just the two wires that go into the SIR
I just swapped the steering wheel in my 2015 Silverado LT for the 2015 Silverado LTZ heated steering wheel. This was a direct swap and did not require reprograming of the BCM. This swap was super easy and only took 3 hours!! I initially talked to the dealership and they told me it was not possible to do... Then I found the following forum articles and figured I would try the swap myself: http://www.gm-trucks.com/forums/topic/163179-removing-the-air-bag-and-steering-wheel/ --- Removing the airbag http://www.gm-trucks.com/forums/topic/105656-heated-steering-wheel-install-in-gmt-900-sierra/page-1?hl=steering%20wheel%20swap ---- Outlines the entire swap The only items I bought were: 1. LTZ steering wheel ($223) ---- Part # 23278626 2. LTZ Clockspring (SIR Coil) ($140) ------ Part #23193462 The heat comes on only when I push the heat button. It goes off when I again press the heat button or I turn the vehicle off. This swap was easy and well worth the money!
Thanks to the info in this, I was able to replace the 2015 steering wheel in my Silverado LT to the 2015 Silverado LTZ steering wheel with heat. I just wanted to add the info for anyone thinking about doing this to their 2014 or later truck and to add some info that I couldn't find in this post: 1. First, I wasn't quite sure on how to remove my airbag. I found this post that really helped. Also, it really helps to remove the plastic column covers FIRST, so you can access the holes in the back of the steering wheel. Here is a link to the post with pictures: http://www.gm-trucks.com/forums/topic/163179-removing-the-air-bag-and-steering-wheel/ 2. The Heated Steering Wheel Plug is not green anymore, it is now black. Also the two wires are purple/white stripe (HOT) and black (GROUND). I was not able to find a plug that would fit, so I cut the plug end off (from the truck side of the SIR Coil). I then directly connected my HOT wire to the purple wire and connected my GROUND wire to the black wire. This swap was very easy and took about 3 hrs from start to finish. The heat comes on when I push the button (it is not dependent on the outside temp). I did not need to reprogram the BCM, it worked immediately. Let me know if anyone has any other questions
I would like to do this to my 2015 Silverado LT. I would like to replace it with the steering wheel from a 2015 Silverado LTZ. The steering wheels appear to be identical, with the addition of the heating option for the LTZ wheel. I have one question(which might be stupid) but: Can I use my existing clockspring and just run my 12v hot wire and ground wire directly to the heating steering wheel plug on the new LTZ wheel? I would think the steering wheel harness connection to SIR should be same?? Thank you for your input
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