Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-12-2008, 11:25 AM   #1
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Exclamation 2008 Suburban - Installing Brake Controller

I had posted this information to another thread that I started in the brake controller section but thought it should be covered in the Tow Vehicle section as well. GM changed their wiring harness setup for a brake controller starting in the 2007 model trucks and Suburban. There was not any documentation on the new wiring setup provided when I picked up the new Suburban. I was able to find the blunt cut red, white, blue and blue/white wires under the dash but found out that the red power wire was not connected. After doing some research back through some GM truck forums I found out GM does not connect the red power wires to the UBEC (Underhood Bussed Electrical Center), that's the fuse box under the hood. There are 2 sets of wires that are rolled up and taped off that must be found and connected to the UBEC. I found a service bulletin that said this is not a "do it yourself job" and should be handled by a Mr. Goodwrench technician. Then I found the attached document from someone on the GM truck forum who provided the complete brake controller install instruction for 2007 and later model GM trucks. It answers all the questions and provides step by step instructions and pictures.
Once the two hidden wires are connected to the UBEC the brake controller works.

One note, as you go through the attached document they indicate that an 8mm nut is required to connect one wire to the threaded post in the UBEC. I discovered that this is really an 8 1.25 MM nut.

There are more issues on the 2008 Suburban as a tow vehicle other than the brake controller wiring issue that relate to the hitch receiver built in to the rear frame/bumper. The distance from the ground to the top of the receiver is 24" which can cause some problems in the drop bar for some hitches, especially the Hensley Arrow. In most cases a 10" drop bar is needed but Hensley only offers an 8".

More details can be found on the GM hitch in these post:

http://www.airforums.com/forums/f464...tml#post602583

http://www.airforums.com/forums/f464...ver-41577.html

http://www.airforums.com/forums/f464...ion-43261.html


Don
Attached Files
File Type: pdf GMT900_Trailer_Brake_Controller_Install.pdf (1.56 MB, 2478 views)
__________________

__________________
adonh is offline   Reply With Quote
Old 09-03-2009, 12:52 AM   #2
New Member
 
Currently Looking...
Portland , Oregon
Join Date: Sep 2009
Posts: 1
Great "How to"

I own a Tundra but since we had a big group headed on a trip, I found your step by step process through Google. My buddy has an 08 Suburban and with your guide, I had my controller working in his Burb in about 10 minutes. Thanks again for such a great document.

By the way, the only reason I registered for this forum was to thank you!

Jason
__________________

__________________
JasonUSMC is offline   Reply With Quote
Old 02-08-2012, 08:01 AM   #3
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
2008 to 2012 Chevy Suburban

I stared this thread back in 2008 when I got my 2008 Suburban and was connecting the brake controller. I am about to pick up my new 2012 Chevy Suburban and from what I understand the wiring setup on the 2012 is not much if any difference from the 2008. I did not get the Gm factory installed brake contoler since I have discs brakes on mt trailer and will I will reinstall my current Tekonsha Brake controller that has worked great for me. Does anyone have more details on the wiring on the newer model Suburbans.

Thanks

Don

__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 02-08-2012, 08:14 AM   #4
Rivet Idiot
 
AirHeadsRus's Avatar
 
1999 34' Excella
Currently Looking...
Currently Looking...
On The Lake , Georgia
Join Date: Apr 2009
Posts: 908
Don,
I hooked my Chevy 1500 2012 a couple of months ago and it looks like it was the same as it was on your 2008. I think I looked at your post in this thread to figure it out.
Regards,
Joe
__________________
AirHeadsRus is offline   Reply With Quote
Old 02-08-2012, 08:21 AM   #5
Rivet Master
 
dznf0g's Avatar

 
2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 9,409
Images: 5
Still the same. Use the bulletin posted above and you'll be fine. Current truck is still a GMT900. Next Gen isn't till the '14 model year. 1/2 tons will be early introduction 14s. Don't know about any changes to the controller setup.
__________________
-Rich-

"If the women don't find you handsome, they should at least find you handy." - Red Green
dznf0g is offline   Reply With Quote
Old 02-08-2012, 08:35 AM   #6
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Great, I like it when things stay the same. In fact the new 2012 Suburban looks exactly like my 2008 Suburban, same silver color with black interior. No one will even know that I changed vehicles. I wonder if I should even tell my wife that I am getting a new one.

Don
__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 02-08-2012, 08:51 AM   #7
Rivet Master
 
dznf0g's Avatar

 
2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 9,409
Images: 5
Quote:
Originally Posted by adonh View Post
Great, I like it when things stay the same. In fact the new 2012 Suburban looks exactly like my 2008 Suburban, same silver color with black interior. No one will even know that I changed vehicles. I wonder if I should even tell my wife that I am getting a new one.

Don
Nope, don't do it!
__________________
-Rich-

"If the women don't find you handsome, they should at least find you handy." - Red Green
dznf0g is offline   Reply With Quote
Old 03-19-2012, 11:45 PM   #8
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Why are you doing it, if you don't mind my asking? (At this point it's probably more appropriate to ask why you did it.)
__________________
phbarnhart is offline   Reply With Quote
Old 03-20-2012, 08:17 AM   #9
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Quote:
Originally Posted by phbarnhart View Post
Why are you doing it, if you don't mind my asking? (At this point it's probably more appropriate to ask why you did it.)
This 2012 has all the things that I wanted that were not on the 2008 plus a full extended warranty, 3.42 rear end, heavy duty transmission cooling and all the bells and whistles. Its new and I love it.

Don
__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 03-20-2012, 02:07 PM   #10
Rivet Master
 
Ganglin's Avatar
 
1971 27' Overlander
Central , Ohio
Join Date: Jun 2006
Posts: 2,365
Images: 13
For those more visually inclined - here's a video that we were referred to when we ordered from etrailer.com. This is for the 2011 Silverado.

Trailer Brake Controller Installation - 2011 Chevy Silverado Video | etrailer.com
__________________
Ganglin is offline   Reply With Quote
Old 03-20-2012, 06:07 PM   #11
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Quote:
Originally Posted by Ganglin View Post
For those more visually inclined - here's a video that we were referred to when we ordered from etrailer.com. This is for the 2011 Silverado.

Trailer Brake Controller Installation - 2011 Chevy Silverado Video | etrailer.com
That is perfect. I have not gotten around to installing the brake controller yet but with the printed and video instructions it should be a snap and refreshes my memory of doing this back on the 2008 Suburban.

Thanks Gary for the additional information.

Don
__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 03-22-2012, 01:00 AM   #12
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by adonh

This 2012 has all the things that I wanted that were not on the 2008 plus a full extended warranty, 3.42 rear end, heavy duty transmission cooling and all the bells and whistles. Its new and I love it.

Don
So what axel ratio did you have in the 2008? Do you notice a big difference with the 3.42?
__________________

__________________
phbarnhart is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Installing a DirecLink Brake Controller in Lexus GX-460 OrangeKid Brakes & Brake Controllers 7 04-04-2013 12:54 AM
New F150 '09 brake controller vs. Prodigy brake controller dukester Brakes & Brake Controllers 17 01-20-2009 11:46 PM
Installing Brake Controller The Flintstones Brakes & Brake Controllers 4 10-31-2006 10:07 PM
Brake Controller on 2001 Suburban Hind-Sight Brakes & Brake Controllers 1 07-17-2006 12:01 PM
brake controller in Suburban durans54 Electrical - Systems, Generators, Batteries & Solar 3 02-28-2006 09:50 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:23 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.