Service Trailer Brake System

A Service Trailer Brake System (STBS) is a type of trailer brake system that uses an air compressor to apply the brakes. STBS are typically used in heavy-duty trailers, such as those used for hauling livestock or construction equipment. When the brakes are applied, the air compressor builds up pressure in the system, which is then used to apply the brakes on the trailer.

STBS systems are generally more reliable than electric trailer brake systems, and they provide better braking power.

If you have a service trailer brake system, you know how important it is to have a reliable way to stop your trailer. Whether you’re hauling a boat or a RV, having brakes that work properly is essential for safety. There are many different types of service trailer brake systems on the market, so finding the right one for your needs is important.

Here are some things to keep in mind when shopping for a new service trailer brake system: -The size of your trailer. Make sure to get a system that is rated for the weight of your trailer.

-The type of terrain you’ll be using it on. If you’ll be going off-road, make sure to get a system that can handle rough terrain. -How often you’ll be using it.

If you only use your service trailer brake system occasionally, you may not need as robust of a system as someone who uses it frequently. -Your budget. Service trailer brake systems can range in price from relatively affordable to quite expensive.

Figure out how much you’re willing to spend before shopping around. With these factors in mind, start shopping around for the perfect service trailer brake system for your needs!

Service Trailer Brake System


What Does It Mean When It Says Service Trailer Brake System?

When your car’s Service Trailer Brake System (STBS) light comes on, it means that there is a problem with the system that controls the brakes on your trailer. The STBS is responsible for applying the brakes on your trailer when you brake your car. If there is a problem with the STBS, it could mean that your trailer will not stop as quickly as it should, which could be dangerous.

There are a few different things that can cause the STBS light to come on. One possibility is that there is something wrong with the wiring between your car and trailer. Another possibility is that there is a problem with the STBS itself.

If you have recently connected or disconnected your trailer, it’s possible that something was not done correctly, which could cause the STBS light to come on. If your STBS light comes on, you should take your car to a mechanic to have it checked out. They will be able to diagnose the problem and fix it so that you can safely tow your trailer again.

Why Does My Truck Keep Saying Service Trailer Brake?

If you have a truck that keeps saying “Service Trailer Brake,” there are a few things that could be going on. First, check to make sure that the trailer brakes are properly adjusted. If they’re not, they can trigger this error message.

Second, check the wiring between the truck and trailer to ensure that it’s all connected and in good condition. Finally, if neither of those solutions solves the problem, it’s possible that there is an issue with the brake controller itself. If you’re not comfortable troubleshooting or repairing these issues yourself, take your truck to a qualified mechanic or dealer for assistance.

How Do I Reset My Brake Controller?

Assuming you are talking about a trailer brake controller and not the brakes on your vehicle: To reset a trailer brake controller, first make sure that the breakaway switch is functioning properly. If it is not, replace it.

With the breakaway switch functioning properly, depress the manual lever on the controller to fully apply the brakes. This will bleed off any air that may be in the system and allow the brakes to reset.

Why Does My 2015 Gmc Sierra Say Service Trailer Brake System?

If your 2015 GMC Sierra is displaying the message “Service Trailer Brake System,” it means that there is a problem with the trailer brake system. There are several possible causes for this message to be displayed, so it’s important to diagnose the issue in order to get it fixed. One potential cause for the message to appear is a problem with the trailer brake controller.

This component controls the amount of braking force that is applied to the trailer brakes, and if it isn’t working properly, it can cause the “Service Trailer Brake System” message to appear. Another possibility is a problem with one or more of the sensors in the trailer brake system. These sensors are used to monitor various aspects of the system, and if they aren’t working correctly, they can trigger the error message.

Whatever the cause may be, it’s important to get any issues with your trailer brake system fixed as soon as possible. If you’re not comfortable diagnosing and repairing the problem yourself, take your Sierra to a qualified mechanic or GMC dealership for assistance.

Service Trailer Brake System (Silverado, Sierra, Tahoe, Yukon)

How to Reset Service Trailer Brake System

If your service trailer brake system isn’t working properly, you may need to reset it. Here’s how to do it: First, check the trailer brakes themselves to make sure they’re in good working order.

If they seem fine, then the problem is likely with the system itself. To reset the system, first disconnect the battery. Then, reconnect the positive cable to the negative terminal on the solenoid.

This will allow any residual power in the system to be discharged. Once that’s done, reconnect the battery and turn on the ignition. The system should now be reset and ready to go!

Service Trailer Brake System Ram 1500

The Service Trailer Brake System (STBS) on the Ram 1500 is designed to provide trailer braking in the event of a failure of the primary braking system. The STBS consists of a master cylinder, power booster, and an electric brake controller. The system is activated by depressing the brake pedal, which applies pressure to the master cylinder.

This pressure is then used to activate the power booster, which amplifies the force applied to the brakes. The amplified force is then used to apply pressure to the electric brake controller, which activates the trailer brakes. The STBS on the Ram 1500 is a great safety feature that can help prevent accidents in the event of a failure of the primary braking system.

However, it is important to remember that the STBS should not be relied upon as your sole means of stopping your vehicle. Always make sure to keep your primary braking system in good working order and only use your STBS as a backup in case of emergency.

How to Fix Service Trailer Brake System

If you have a Service Trailer Brake System (STBS) on your vehicle, there are a few things you can do to fix it if it isn’t working properly. First, check the fuse that supplies power to the STBS. If it is blown, replace it with a new one.

Next, check the wiring harness for any loose or damaged wires. If you find any, repair or replace them as necessary. Finally, check the STBS itself for any damage or wear and tear.

If you find any issues, consult your owner’s manual or take it to a qualified mechanic for repairs.

Service Trailer Brake System No Trailer

If your vehicle is equipped with a service trailer brake system and you don’t have a trailer connected, you may notice that the brakes are harder to pedal. This is because the system is designed to provide extra braking power when a trailer is connected. If you don’t have a trailer connected, the system will still work, but it may make your brakes feel firmer than usual.

There’s no need to worry, though – this is normal operation for the service trailer brake system.


The Service Trailer Brake System is a great way to keep your trailer brakes working properly. This system allows you to check the trailer brakes from your tow vehicle, and it also gives you a visual indication of when the brakes are applied. The system includes a controller that mounts in the cab of your tow vehicle, and two sensors that mount on the trailer frame.

The service brake system can be used with any type of trailer, and it’s easy to install.

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