2015-2018 GM FACTORY BRAKE CONTROLLER August 02, 2019 03:28AM
Anyone have 2015-2018 Chevy silverado or gmc with the factory brake controller having any issues with it not
working or a a message popping up on the cluster saying SERVICE TRAILER BRAKE SYSTEM? If so did you install aftermarket controller and pigtail? Help please Thanks

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 02, 2019 05:23AM
Mine did, just wound up being bad ground in trailer harness.

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 02, 2019 06:12AM
hope that's all that's wrong with mine

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 02, 2019 01:30PM
My 17 Chev does same thing I just hit Dismiss seems like everything is working OK.

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 02, 2019 03:43PM
Weird but when my message pops up i have no trailer brakes. Hit and miss as well

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 12, 2019 02:07PM
I got the same message. I cleaned the terminals on the truck and trailer and it worked. Also try putting another twist in you trailer harness before plugging it in. It helps to keep the cord aligned and connector aligned too. After it’s plugged in. Squeeze the truck connector lid and male plug on the trailer together like you would a pliers. It binds the two together and reduces the likelihood of it working loose.

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 14, 2019 01:46AM
My 2012 did this for a while, mine ended up being a bad front wheel speed sensor. For some stupid reason it would disable the trailer brakes and stabilitrak when the signal would get flaky which was bad news when towing.

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 14, 2019 02:31AM
Common for wiring to rub through near the Left Rear cab mount area.

GM disaster August 14, 2019 03:41AM
Just another reason to steer clear of the Train Wreck General Motors. They fleeced the American people with the bail out and still sending junk out the door. A once great auto maker gone in the tank. They had other brake issues as well. Very poor quality!

Re: 2015-2018 GM FACTORY BRAKE CONTROLLER August 15, 2019 07:54AM
I make a living working on GM cars and trucks at the dealership. Not uncommon for trucks to come in with trailer brake issues. 90% of the time its the trailer or driver error.

It has the be the $70k truck that is still under warranty, not the 20 year old POS trailer that sits out back in the weeds with scotch locks on the wiring and bare wires hanging under it...

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