Installing Tekonsha Prodigy P2 Trailer Brake Controller on 2013 GMC Sierra

Question:

Recently purchased a 2013 GMC Sierra 1500. I have a prodigy p2 I previously purchased from you and now need a new wiring harness. I am unable to find a plugin harness for my truck. Can you help? Thanks!

asked by: Stevie H

Helpful Expert Reply:

The reason you were unable to find a custom fit brake controller wiring plug-in is because there is not a custom plug-in harness for the 2013 GMC Sierra 1500. Though GM did not provide a plug under the dash for a plug-in harness on your vehicle, the wires needed to install the Tekonsha Prodigy P2 # 90885 have already been ran.

These wires are located below the steering column, to the left of the brake pedal, in a bundle of wires tied together with white tape. You will want to use butt connectors, # DW05745-5, to connect the wires from the Prodigy's pigtail wiring, # 20127, to the factory ran wires under your Sierra's dash.

The wires will be connected together with the black brake controller adapter wire connecting to the red tow package wiring. The blue pigtail wire will connect to the dark blue wire in the factory wire bundle, the red pigtail wire will connect to the light blue or orange wire on the truck, and the white pigtail wire will connect to the white factory wire.

I have attached a help article that will walk you through the process of installing the Prodigy P2 # 90885 in your 2013 GMC Sierra 1500. An installation video of the P2 in a similar Sierra is also attached for you.