From plug-in adapters to 4-wire hookups, CURT trailer brake controllers make setup straightforward. Pick Bluetooth app-based options, dash-mounted knob styles, or traditional units to fit your cab layout and towing needs. If the controller doesn't light up, confirm wiring and the trailer brake fuse, and remember controllers enter sleep mode after 10 minutes or so to protect your battery.
It should light up even without a trailer. If it doesn't, recheck the wiring, and clean and dry the trailer plug to rule out contamination. For units with a knob, run calibration before plugging in the trailer and use the light codes for diagnostics; red indicators can point to a stop light switch issue or miswire. Also verify the trailer brake fuse.
Use a universal 4-wire setup or a 4-Flat to 7-Way install kit. Connect 12V power, ground, brake signal, and the feed to the trailer, matching the wires and securing good grounds. Plan your run on a pickup—some harnesses can be short—and have extra wire, screws, and connectors on hand if needed.
Very easy when you use a CURT vehicle-specific conversion cable. Plug it in, tidy the wiring, and mount the dash knob with the included tape if your model uses one. If an app is used, sync it after powering up. Pulling dash trim can be part of the job, but it's straightforward.
Pick Bluetooth for a hidden install that plugs in behind the 7-way and can move to another vehicle easily. Just secure the connection well—slight movement at the socket can interrupt operation. Choose a wired, dash-mounted style for a plug-in under-dash install with a clean, almost factory look and no need for a power outlet.
It's designed to go into sleep mode after about 10 minutes to help prevent battery drain. If you still want it fully disconnected when not towing, simply unplug the connector at the back of the controller. That leaves the rest of your vehicle lights and wiring undisturbed.
Trailer Brake Controller Parts or Accessories
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