Avalanche 4WD V8-5.3L (2011)
1. Connect the electrical connector and install the trailer brake control relay (1).
Caution: Refer to Fastener Caution See: Service Precautions/Vehicle Damage Warnings/Fastener Caution.
2. Install the trailer brake control relay bolts (1) and tighten to 6 Nm (53 lb in).
