Why does my truck say service trailer brake system?

So after about 5 months of dealing with the stupid “service trailer brake system” message on the display every time the truck was started as well as random points while driving with and without a trailer, I decided to dig into it. After reading other posts and stories of dealer guess work, I was given a good head start.

Can you disabled trailer brake system on 2015 GMC?

Hello my dash board is sending me a service for the trailer brake system it’s a GMC 2015 are we ok to drive it with that warning???? Can we disabled that?

How can I tell if my trailer brake is disconnected?

The Trailer Brake Display Page will appear on the Driver Information Center by the driver. The dashed lines in the TRAILER OUTPUT display signifies a disconnected is not present. adjustment +/- buttons on the trailer brake control panel switch. Pressing and holding a gain button will cause the trailer gain to continuously increment or decrement.

What do the dashed lines on the trailer output display mean?

The dashed lines in the TRAILER OUTPUT display signifies a disconnected is not present. adjustment +/- buttons on the trailer brake control panel switch. Pressing and holding a gain button will cause the trailer gain to continuously increment or decrement. To turn the output to the trailer off, set the gain to zero. brake control panel switch.

What does service trailer brake system error message mean?

According to the owner’s manual for a 2015 GMC Sierra, the “Service Trailer Brake System” error message can appear on models equipped with the factory integrated trailer brake controller (ITBC) and represents a problem in the trailer brake module or wiring that will not allow power to be sent to the trailer’s brakes.

What causes check trailer brakes to turn off?

There is an electrical fault in the wiring to the electric trailer brakes. The CHECK trailer wiring. This message will also turn off if the driver acknowledges this message off. A poor connection at the 7–way connector may cause the CHECK TRAILER WIRING message. or excessive wear to the vehicles trailer terminals. It is recommended that you use

Is there a service trailer brake message on my GMC Sierra?

GMC sierra has a “service trailer brake” message. I replaced the controller and the message still comes up. I next need to clean the G401 ground connector. I can’t find it.

Hello my dash board is sending me a service for the trailer brake system it’s a GMC 2015 are we ok to drive it with that warning???? Can we disabled that?

How does the trailer brake system work on a Silverado?

The ITBC system is integrated with the vehicle’s brake, antilock brake, and StabiliTrak systems. In trailering conditions that cause the vehicle’s antilock brake or StabiliTrak systems to activate, power sent to the trailer’s brakes will be automatically adjusted to minimize trailer wheel lock-up.

What was the problem with my Duramax trailer brakes?

My truck (08 2500HD duramax) was going to go off warranty soon so I had the dealer look at it. The said a pressure sensor in the master cylinder that provides the voltage output based on pressures to the trailer brake control was dead. They replaced it and power bled the front brakes.

What are the brakes on a GM Truck?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Today I was receiving the ‘service trailer brake’ message my entire 36 mile drive home from work.

When to turn off the brakes on a Silverado?

When traffic conditions allow, carefully pull the vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on.

In some cases, when the trailer mounted sway module activates, it could cause the vehicle to set DTC C1114, and display the “Service Trailer Brake System” message on the DIC. This could be an indication that the trailer brakes are no longer functioning.

How to fix service brake system on GMC Truck?

Tighten the nut to 9 N·m (79 lb in). Cover the front and back side of the repair area using Rubberized Undercoating. An additional check can be made to ensure a good connection for the Battery Cable to Frame ground. It is possible for this ground to cause similar symptoms with the ABS as described above

Is the ABS light on on my GMC Truck?

Some customers may comment that the ABS light is on. Upon further inspection, DTCs C0265 and C0201 may be set in the brake module. It is also possible for DTC U1041 to set in other modules. There may also be a loss of communication with the brake module.

Why does my brake light keep coming on?

Today the brake light came on as well with the friendly message of Service Brake System. I’m just trying to get possible ideas as to what could be causing this. No I havent had a chance to get it scanned yet, waiting on a friend.

How to test brake resistance on GMC Truck?

Disconnect the connector at the Electronic Brake Control Module (EBCM) and test resistance between pins A3 a Dk Green wire and B3 a Tan wire. Should be between 700-10k ohms. Compare to the pins A2 and B2. The values should be the same. 2. If an open circuit, go to the speed sensor itself, disconnect it, and check resistance across the sensor. 3.

Why does my truck say service trailer brake system?