Silverado Classic 1500 4WD V8-4.8L (2007)
Trailer Connector: Technical Service Bulletins
Brakes - Aftermarket Trailer Brake Controllers
INFORMATION
Bulletin No.: 06-08-45-008D
Date: July 12, 2010
Subject: Information on Auxiliary Power Wire at Trailer and Installation of Aftermarket Trailer Brake Controller - Towing, Tow
Models:
2007-2011 Cadillac Escalade, Escalade ESV, Escalade EXT
2007-2011 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2007-2011 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL
2008-2011 HUMMER H2
Supercede:
This bulletin is being revised to add the 2011 model year and information about the orientation of the ringlet. Please discard Corporate Bulletin Number
06-08-45-008C (Section 08 - Body and Accessories).
Important
Installation of an electric brake controller and the wiring connections outlined in this bulletin are the responsibility of the dealership or
customer. These repairs should never be charged to warranty. If you have any questions, please consult with your District Service Manager.
Some customers may have questions on how to connect an electric trailer brake controller or where the brake controller pigtail harness is located.
Starting with the new 2007 full-size utilities and pickups and 2008 HUMMER H2, there is no longer an electric trailer brake controller pigtail harness.
An aftermarket brake controller will need to be installed/connected to the blunt wires under the left side of the IP for vehicles built without JL1 -
Integrated Brake Controller (full-size utilities and pickups). The following steps should be used to complete the installation.
1. Locate the trailer brake control circuits that are looped and taped to the main harness under the instrument panel.
2. Pull the trailering wire harness down.
