Sierra 2500 Denali 2WD V8-6.0L (2011)
9. Slide the trailer brake control module relay (1) to remove the relay from the bracket.
Installation Procedure
1. If installing a new trailer brake control module relay, partially install the 2 trailer brake control module relay bolts.
2. Install the trailer brake control module relay (1) to the bracket.
3. Slide the trailer brake control module relay in the bracket until the relay bolts are resting against the back of the bracket slotted holes.
