I am having no luck getting any answers to adding factory heated seats to the second row. I have an 07 Yukon slt with power folding buckets without heat. I plan on putting in a factory heated and power folding bench. I want it to look factory so I know I need part number 15886277 which is the rear audio controls with the heated seat buttons. What else would I need such as harnesses and wiring? Is this even possible to add? None of the local dealerships have any answers for me. Thanks in advance.
Help adding heated seats to the second row
- Thread starter Daneman27
- Start date
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ChevyFreak
Full Access Member
I have been trying to find some information on this as well, Ryan. 
I fully believe this to be possible, but to what extent I do not know.
The unfortunate part is that GM does not appear to have a kit like the one that can be purchased for the front seats. As stated, you would definitely need the rear audio controls, and then, of course, the heat pads. What I am not sure about is the harness. If we could figure out all the parts needed, I can't imagine this would be too difficult to do. In fact, it may be easier then working on the front seats. 
I will continue to look for more information, and hopefully someone can post here and offer some thoughts. I will let you know if I come across anything of importance, and I would appreciate the same in return. I know this can be done, I just don't exactly know how.....
I fully believe this to be possible, but to what extent I do not know.
The unfortunate part is that GM does not appear to have a kit like the one that can be purchased for the front seats. As stated, you would definitely need the rear audio controls, and then, of course, the heat pads. What I am not sure about is the harness. If we could figure out all the parts needed, I can't imagine this would be too difficult to do. In fact, it may be easier then working on the front seats. I will continue to look for more information, and hopefully someone can post here and offer some thoughts. I will let you know if I come across anything of importance, and I would appreciate the same in return. I know this can be done, I just don't exactly know how.....
GreatWhite
Member
I've never heard of GM offering heated rear seats (doesn't mean they don't) but I'm pretty sure ChevyFreak is right that you can't buy a kit. It shouldn't be that hard to do with a universal aftermarket kit (view here: http://www.heatedseatkits.com/heatedseatkits/iheat2/index.html but available cheaper from other sources). I have one of these kits that I'm about to install in another car and it looks straightforward enough. You are on your own for how and where to run the wiring and mount the switches. The wiring might be a little tricky to allow for the movement of the rear seats. You will need a 10 amp line for each seat but you should be able to find a source for that. I don't think our vehicles go nuts at unexpected current draws. You must really like whoever sits back there!
ChevyFreak
Full Access Member
Parts Needed (follow link)
Oh, the power of the internet!
I found this information after doing some clever searching. I will provide the link because it is too long to copy and paste. Hopefully the links work.
Left Side Bucket Seat - HERE
Right Side Bucket Seat - HERE
I hope this helps. Of course, this is only the parts that are needed. I am still looking for some more information on the actual install.
It looks like we are definitely looking at #13 (20792750 - Seat Heater) and #48 (15843764 - Harness, Chassis Wiring, Seat Heater), and possibly #35 (25862293 Module, Front/Rear Seat Heater, Front Seat, Seat Heater) and #36 (15843765 Harness, Chassis Wiring, Seat Heater).
I will keep this thread updated as I gather more information.
Oh, the power of the internet!
I found this information after doing some clever searching. I will provide the link because it is too long to copy and paste. Hopefully the links work.
Left Side Bucket Seat - HERE
Right Side Bucket Seat - HERE
I hope this helps. Of course, this is only the parts that are needed. I am still looking for some more information on the actual install.
It looks like we are definitely looking at #13 (20792750 - Seat Heater) and #48 (15843764 - Harness, Chassis Wiring, Seat Heater), and possibly #35 (25862293 Module, Front/Rear Seat Heater, Front Seat, Seat Heater) and #36 (15843765 Harness, Chassis Wiring, Seat Heater).
I will keep this thread updated as I gather more information.
Attachments
Hello-
I know this post is really old- wondering how things worked out.
I just bought a heated bench to replace my non heated buckets in an 07 Yukon... I did not plan on the “heated” bench but I might as well try to hook it up.
Turns out, wiring is there ready to go at the seat - I just don’t know if that wiring is for the power fold or heat or both!
Either way, I need those heated switches in the center console to at least attempt to turn on the heated seats.
Anyone know if I buy the factory switches, plug in seats, will they work?
Sent from my iPhone using Tapatalk
I did all the research necessary to add heat to my rear (folding) bench and decided it's not worth the work.
You need the heat pad set for the seats, the heat module, the rear HVAC module, and both front and rear seat harnesses. You will also need to re-flash both the front seat module, rear seat heat module, and BCM with the correct firmware (you will need the RPO codes for those options for your model and model year)...here's where the problem comes in - dealers will not do this. You need a "rogue" programmer who both knows how to do it, and has the GlobalConnect access and an MDI. That's going to be hard to come by.
After realizing that was not going to work for me, I looked into several different ideas - you could possibly use the the add-in front seat heater kit for the GMT900 Silverado. That kit comes with a heat module, separate switch sets (so it doesn't require the rear HVAC module's buttons), and is a FRONT seat heat set...so as long as your truck comes with heated front seats, you will not need a BCM flash for it to work (the necessary code is already there). The two problems with it are this - where to mount the switches so it looks factory, and whether or not the GMLAN communication wire will allow for proper reset functionality with vehicle power cycles. IF that doesn't work, you run into the same problem you have with aftermarket kits - you have to manually turn them off. So if you only have occasional rear seat passengers, and one of them turns on the seat heater and assumes it works like every other car and turns itself off when the car turns off, you will then have that seat heater turn on every time you start your vehicle...with no one back there to detect that, you could have a seat heater on for weeks and not know it. THIS is why I decided against trying this idea.
You need the heat pad set for the seats, the heat module, the rear HVAC module, and both front and rear seat harnesses. You will also need to re-flash both the front seat module, rear seat heat module, and BCM with the correct firmware (you will need the RPO codes for those options for your model and model year)...here's where the problem comes in - dealers will not do this. You need a "rogue" programmer who both knows how to do it, and has the GlobalConnect access and an MDI. That's going to be hard to come by.
After realizing that was not going to work for me, I looked into several different ideas - you could possibly use the the add-in front seat heater kit for the GMT900 Silverado. That kit comes with a heat module, separate switch sets (so it doesn't require the rear HVAC module's buttons), and is a FRONT seat heat set...so as long as your truck comes with heated front seats, you will not need a BCM flash for it to work (the necessary code is already there). The two problems with it are this - where to mount the switches so it looks factory, and whether or not the GMLAN communication wire will allow for proper reset functionality with vehicle power cycles. IF that doesn't work, you run into the same problem you have with aftermarket kits - you have to manually turn them off. So if you only have occasional rear seat passengers, and one of them turns on the seat heater and assumes it works like every other car and turns itself off when the car turns off, you will then have that seat heater turn on every time you start your vehicle...with no one back there to detect that, you could have a seat heater on for weeks and not know it. THIS is why I decided against trying this idea.
swathdiver
Full Access Member
Kevin, get your own Tech-2 and then you can access TIS2WEB and the TDS system yourself with a modest subscription price.
