Solution for 2022 GMC Sierra 3500 Brake Controller Not Working Like it Should
Updated 09/02/2025 | Published 08/15/2025
Question:
I have factory installed trailer break . Not working like it should .Need a quality basic controller that is plug and play replacement.2022 GMC 3500
asked by: Brian T
Expert Reply:
Hey Brian, is the controller possibly not sensing a trailer connection and that's the issue you are having? If so, have you tried cleaning the pins of your 7-way with sandpaper? That's a super common issue.
Or does your trailer have hydraulic brakes? If so, the brake controller would need to be put in hydraulic mode.
If all that checks out and you want an aftermarket brake controller the P3 part # TK52HR would be a great choice and it comes with the correct harness for your 2022 GMC Sieerra 3500.
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller w/ Custom Harness - Up to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LCD Display
- Multiple Trailers
- Tekonsha
more information >
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Jameson C.
9/2/2025
Hey Brian, did cleaning the pins or adjusting to hydraulic mode solve the issue with your trailer brakes? I'd love to know if the P3 brake controller worked out for you, as it could help others facing similar challenges.