Dump Trailer Brakes Not Working w/ 2025 GMC Denali Brake Controller
Updated 10/03/2025 | Published 09/25/2025
Question:
2025 GMC Denali, the brake controller works on all of my trailers but one. However my other trucks work on all the trailers including that one. From 40foot 5th wheel to 14foot utility with brake axle. The one in question is my 16foot dump trailer with 7k axles.
asked by: BC
Expert Reply:
Thanks for the riddle! Does your dump trailer have a Electric Over Hydraulic Actuator like item # HS381-8067, that controls hydraulic brakes? What brake controller are you using in your 2025 GMC Denali?
You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
Product Page this Question was Asked From
Hydrastar Marine Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi
- Brake Actuator
- Electric-Hydraulic Brake Actuator
- Boat Trailer
- Travel Trailer
- Disc Brakes
- Hydrastar
more information >
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Bc
10/3/2025
Factory brake controller and all electric brakes.