Silverado 1500 4WD V8-6.0L (2010)
5. Slide the trailer brake control relay (1) toward the center of the vehicle and remove the trailer brake control relay.
Installation Procedure
1. If installing a new trailer brake control relay, hand start the 2 trailer brake control relay bolts.
2. Position the trailer brake control relay to the frame bracket.
3. Slide the trailer brake control relay (1) toward the left frame rail.
