Chevrolet Suburban 3500 Questions

[Slatinaa]

Bigburb3500, they are color coded and thats what I might be doing. I do want to find out what each color wire is for before doing this as to my Suburban does not have heated seats or I don’t think it does with my cloth seats. Also not sure if it will do the back climate control on back of the new console.

Anyone help would be greatly appreciated.

Thank you!

 

[TripleFJeff]

Hi all, owner of a '08 2500 looking at getting into a 3500. Had read this thread previously and was wondering what it would take to swap the console so very timely. I might be able to get wiring diagrams for these.

Let me know if you'd prefer this in a different thread, but I'm interested to hear from those of you who have gone from a 2500 LT to a 3500 LS, what features do you miss? Also, what options are there for tow mirrors?

 

[Bigburb3500]

Hi all, owner of a '08 2500 looking at getting into a 3500. Had read this thread previously and was wondering what it would take to swap the console so very timely. I might be able to get wiring diagrams for these.

Let me know if you'd prefer this in a different thread, but I'm interested to hear from those of you who have gone from a 2500 LT to a 3500 LS, what features do you miss? Also, what options are there for tow mirrors?

I will support this because I used to have a 01 Sub 2500! Welcome and I will say I lovey 3500. Rides a bit stiff but not bad my any means. I retired my 99 Toyota from DD duties for my current 2018 3500 LT.
Only options I miss: Sunroof and venting 3rd windows. I drive with windows down a lot and 3rd row vent is the best.
Options I wish I had and might add: Ventilated front seats
Options I want but not necessary: Adaptive cruise and lane centering.

Tow mirrors: https://www.carid.com/trail-ridge/d...zQr0V0XeW06Uqy5o48NAMIM8emm8W-IM9PELAJE&gQT=2

 

[TripleFJeff]

I will support this because I used to have a 01 Sub 2500! Welcome and I will say I lovey 3500. Rides a bit stiff but not bad my any means. I retired my 99 Toyota from DD duties for my current 2018 3500 LT.
Only options I miss: Sunroof and venting 3rd windows. I drive with windows down a lot and 3rd row vent is the best.
Options I

 

[TripleFJeff]

Well, getting a LT would be ideal but they are super rare. Going from a 2008 2500 to the 3500 it’s basically the same chassis and drivetrain so I expect that to be similar. I love my ‘08, but at 208K I’m thinking that if I can knock off 100K+ miles and 8 years I should easily be good for another 100K. Going from the LT to the LS would be a downgrade for some features, but maybe some can be retrofit.

 

[Bigburb3500]

Well, getting a LT would be ideal but they are super rare. Going from a 2008 2500 to the 3500 it’s basically the same chassis and drivetrain so I expect that to be similar. I love my ‘08, but at 208K I’m thinking that if I can knock off 100K+ miles and 8 years I should easily be good for another 100K. Going from the LT to the LS would be a downgrade for some features, but maybe some can be retrofit.

I believe the main option differences are “simple” leather vs cloth. Auto dimmer center mirror vs non-dimming and….? Maybe some insulation/acoustic dampening? Probably Blindspot monitoring.
Mechanically they are all the same.

 

[TripleFJeff]

I believe the main option differences are “simple” leather vs cloth. Auto dimmer center mirror vs non-dimming and….? Maybe some insulation/acoustic dampening? Probably Blindspot monitoring.
Mechanically they are all the same.

I can't find a 2016 order guide, but I did find a 2018, and in 2018 the heated seats were LT only... but I have seen a 2016 LS with a console and heated cloth seats. Does anyone know if the wiring is there for heated seats? If I could swap in heated seats and a console to a LS that would be nice.

 

[Slatinaa]

TripleFJeff welcome to the forum. Thats what Im currently working on. Bought a 16LS Homeland Security Suburban which had the police center console in it. They took that out and placed a central jump seat in it. The main dash wire they cut so non of my USB plugs work (see attached photos in the forum) Everything else works fine. Just got the harness and a nice center console that has the buttons for heated seats.

My question are where I can find color coated diagram for the harness so I know what each wire does before I splice the new harness into my cut harness.

Also wondering if my cloth seats have the heating elements in them.

?

 

[Bigburb3500]

TripleFJeff welcome to the forum. Thats what Im currently working on. Bought a 16LS Homeland Security Suburban which had the police center console in it. They took that out and placed a central jump seat in it. The main dash wire they cut so non of my USB plugs work (see attached photos in the forum) Everything else works fine. Just got the harness and a nice center console that has the buttons for heated seats.

My question are where I can find color coated diagram for the harness so I know what each wire does before I splice the new harness into my cut harness.

Also wondering if my cloth seats have the heating elements in them.

?

Have you looked through the upfit link geotrash provided?

@TripleFJeff I believe if you go thru some of the SSV and PPV threads they have successfully installed interiors from other trims. I also asked several ppl about installing other seats in my truck (ventilated) and am generally under the impression it can be easily done.

 

[TripleFJeff]

TripleFJeff welcome to the forum. Thats what Im currently working on. Bought a 16LS Homeland Security Suburban which had the police center console in it. They took that out and placed a central jump seat in it. The main dash wire they cut so non of my USB plugs work (see attached photos in the forum) Everything else works fine. Just got the harness and a nice center console that has the buttons for heated seats.

My question are where I can find color coated diagram for the harness so I know what each wire does before I splice the new harness into my cut harness.

Also wondering if my cloth seats have the heating elements in them.

?

Just spend $22 for a 3 day subscription to GM TDS, and download everything you need. It will be money well spent for the time it saves you.

 

[Slatinaa]

TripleFJeff, I can do that if it will tell me color of wire and what it goes to. Have you used the service? What is the link?

Seats are interchangeable the generation year tahoe, suburban, escalade and gmc.

Read a write up where guy installed escalade seats.

My Suburban came with clean cloth seats that I don’t mind. Will wear them out and if need to be change out, but for now I really like them. They are verily available since all the suvs above use them.

 

[TripleFJeff]

Site Maintenance

The upfitter information is straight from the service manuals, this might just cover what you need. Check out pages 354-355ish. https://www.gmupfitter.com/wp-conte...ilders_Manual_Service_Manual_2017_en_US_1.pdf

I think that connector is X300. See page 280-282, 479-484, and 1456-1473

 

[Bigburb3500]

TripleFJeff, I can do that if it will tell me color of wire and what it goes to. Have you used the service? What is the link?

Seats are interchangeable the generation year tahoe, suburban, escalade and gmc.

Read a write up where guy installed escalade seats.

My Suburban came with clean cloth seats that I don’t mind. Will wear them out and if need to be change out, but for now I really like them. They are verily available since all the suvs above use them.

I do not think Escalade seats are direct replacements. They will bolt in but because some functionality is controlled thru the infotainment system it will likely be difficult/not possible to operate.

Yukon Denali seats should be plug and play.

 

[Geotrash]

Got the Denali cluster installed today.

Before:

After:

Mileage came over correctly. However I haven’t been able to get Apple Maps to work on the navigation screen via either wired (direct) or wireless CarPlay (with adapter). Album art comes over but the playlist names don’t. Seems to get more data the longer it’s connected and running so we’ll see if anything changes on our next trip.

I did not install the HUD gear yet.

One thing I love: tow/haul mode displays the transmission temperature in place of voltage.

Going to hang on to the original cluster for a few weeks at least to make sure I like this new one.

 

[Geotrash]

Getting a service steering system message after every startup now, but neither my topdon or autel Bluetooth scanners are finding any trouble codes related to it. My guess is that both of them are seeing this as a normal 1500 suburban and can’t scan the modules unique to the 3500 appropriately. Might need to invest in a mvi tool.

 

[Slatinaa]

Team, quick update on my center console harness.

Finally found a little time to go through wires on my 16 Suburban 3500 LS that were cut and compare to the wire harness I purchased from a wrecking yard.

I have attached photo of the wire harness that Im trying to attach to my cut harness.

I have also attached written colors that are on my suburban and compared to the harness I bought from wrecking yard to attach to my suburban.

My next step is to somehow find out what each of these colors are for before connecting.

What route should I go to find color codes. I’ve been unsuccessful finding anything online.

Would my local Chevy dealer have this info?

Thank you,

 

[TripleFJeff]

Team, quick update on my center console harness.

Finally found a little time to go through wires on my 16 Suburban 3500 LS that were cut and compare to the wire harness I purchased from a wrecking yard.

I have attached photo of the wire harness that Im trying to attach to my cut harness.

I have also attached written colors that are on my suburban and compared to the harness I bought from wrecking yard to attach to my suburban.

My next step is to somehow find out what each of these colors are for before connecting.

What route should I go to find color codes. I’ve been unsuccessful finding anything online.

Would my local Chevy dealer have this info?

Thank you,

All of that information is in the upfitter manual that I linked to above. Did you look at it? For example, X300 is that big connector. Here is an example.

 

[Slatinaa]

All of that information is in the upfitter manual that I linked to above. Did you look at it? For example, X300 is that big connector. Here is an example.View attachment 456062
View attachment 456063

Thank you sir! I will review it when I get to my computer on a bigger screen. Thanks again!

 

[TripleFJeff]

Off on a tangent... curious from those of you who have gone from a 08-13 2500 (6 Speed) to a 3500, is your towing mileage any different? The 3500 has 4.10s vs 3.73s on the 2500, but with the 2500 towing close to 10K it doesn't spend much time in 6th except going down hills.

 

[Geotrash]

Off on a tangent... curious from those of you who have gone from a 08-13 2500 (6 Speed) to a 3500, is your towing mileage any different? The 3500 has 4.10s vs 3.73s on the 2500, but with the 2500 towing close to 10K it doesn't spend much time in 6th except going down hills.

Well, it’s not a direct comparison to what you’re asking, but I used to pull the same camper with a 2012 Yukon XL with a 6.2 L. With that, I’d get about 7.5 on average towing, and with the suburban 3500 I’m getting about 8.3.