Trailer Brake Control Relay Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Trailer Brake Control Relay, Electrical Connector & Bolts

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Turn the ignition switch to the OFF position. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Trailer Brake Control Relay Electrical Connector Procedure: Disconnect the electrical connector.
2	Trailer Brake Control Relay Bolt (Qty: 2) NOTE: Refer to Fastener Notice . Procedure: Loosen, but do not remove the bolts. It is not necessary to completely remove the bolts. Tighten: 9 N.m (80 lb in)
3	Trailer Brake Control Relay Procedure: Slide the relay upward to remove.