Yukon XL 4WD V8-5.3L (2011)
Trailer Brake Control Module: Service and Repair
Trailer Brake Control Module Replacement
Trailer Brake Control Module Replacement
Removal Procedure
1. Turn the ignition switch to the OFF position.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle See: Maintenance/Vehicle Lifting/Service and Repair.
3. Disconnect the trailer brake control module electrical connector.
Note: It is not necessary to completely remove the bolts.
4. Loosen, but do not remove, the trailer brake control module bolts (1).