Installation Procedure

Courtesy of GENERAL MOTORS COMPANY

Trailer Lamp Control Module (2) - Install
CAUTION:
Refer to Fastener Caution .

Trailer Lamp Control Module Bracket Nut (1) - Install and tighten [2x] - Fastener Specifications
Courtesy of GENERAL MOTORS COMPANY

Electrical Connector (1) @ Trailer Lamp Control Module - Connect
Remove the support and lower the vehicle.
Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
Program the trailer lamp control module. Control Module References