Why does my chevy say service trailer brake system?
If you have a message that is informing you to service your trailer brake, there’s a good chance that the brakes themselves will have a problem. Service brakes are like any other vehicle brakes, you’ll need to service them on a regular basis to ensure they function properly for as long as possible.
What does service trailer brake system mean on a 2015 chevy silverado?
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.
How to fix trailer brakes not working?
Using a circuit tester, like item # 3808, you should get output to the trailer brakes, blue wire. If the manual slide activates the trailer brake output wire properly, try the brake pedal. If the brake pedal activates the brake output properly the problem is farther back either in the vehicle wiring or on the trailer.
Where is ITBC located on 2008 2500HD LTZ Chevrolet 4×4?
The ITBC system is fully functional only when the ignition is in ON or in RUN. electric brakes. instrument panel to the left of the steering column. Driver Information Center (DIC). as part of the trailer wiring package. These provisions are for an electric brake controller. The instrument panel for the trailer brake controller.
How does the ITBC system work in a GMC?
The ITBC system is powered through the vehicle’s electrical system. Turning the ignition off will also turn off the ITBC system. The ITBC system is fully functional only when the ignition is in ON or in RUN.
Is there a problem with the ITBC brake controller?
If doesn’t understand that you are stepping on the brakes (based on the brake switch), ITBC will produce no braking. Another problem area, on my 2008 model, there is a brake pressure sensor on the engine side of the master cylinder.
What happens if a trailer is not compatible with ITBC?
Connecting a trailer that is not compatible with the ITBC system may result in reduced or complete loss of trailer braking. There may be an increase in stopping distance or trailer instability which could result in personal injury or damage to the vehicle, trailer, or other property.