2023 Sierra 1500 AT4 trailer plug mis-wired?

robertckeller · March 23

My pickup is 1 month old and I hooked up to my airstream for the 1st time yesterday the brakes would not release, right turn signal stayed on even after I shut the truck off. Unconnected the light cable brakes roll and the turn signal shut off. Took a tester light to it and it appears that each of the wires need to rotate counter clockwise one position to work properly. Constant power is where the right turn signal should be as an example. I have never had a problem with the trailer and any other vehicle we have used to tow it. Is this a problem from the factory? If so how do I unpin and move?

diyer2 · March 23

If you are correct cut the wires in the harness and correct placement. Solder them and use shrink tube, the right way.

jaxcam02 · March 23

Take it to the dealer under warranty.

onewheat · April 28

On 3/23/2023 at 11:29 AM, diyer2 said:

If you are correct cut the wires in the harness and correct placement. Solder them and use shrink tube, the right way.

Why would you cut the factory wiring and do a splice repair on a 1-month-old truck that has a warranty? The dealer can either unpin the wires from the connector and replace them correctly or order a new harness and whatever else is needed and just replace the miswired parts.