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2024 - 2026 Hyundai Santa Fe
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Plugs into existing OEM vehicle socket to provide a 4-way flat socket
| Material | THERMOPLASTIC RUBBER |
CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this special socket is not equipped on every vehicle, a CURT custom wiring connector -- also called a T-connector -- utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle's wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard, universal vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular plug-in connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Hyundai Santa Fe (to verify your vehicle compatibility, see application info). It comes with all necessary hardware to establish a solid connection. It also comes with a dust cover to keep the connector socket clean when not in use. To ensure long-lasting reliability, all CURT custom wiring connectors are thoroughly tested for optimal functionality. Stress is the last thing you should feel when towing a trailer -- whether you're hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
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The Curt 56571 is a powered converter module with a T-connector harness designed for SUVs and vans. It provides trailer lighting control by converting the vehicle's factory taillight signals into a 4-way flat connector for towing. The system includes a lighting module that processes left turn, right turn, brake, and taillight signals, and a powered converter that supplies power to the trailer lights.
The Curt 56571 is designed for SUVs and vans with 12-volt negative ground electrical systems. The manual does not specify which makes and model years are compatible. Contact Curt Manufacturing or consult a fitment database with your vehicle's year, make, and model to confirm compatibility before purchasing.
No. The Curt 56571 is designed only for 12-volt negative ground systems. Do not attempt to install it on vehicles with positive ground or 24-volt systems, as this will cause improper operation and potential electrical damage.
Required tools are: ratchet, Phillips screwdriver, 6" extension, test light, 10mm socket or wrench, fish wire, drill, wire cutters, 3/32" drill bit, and wire crimpers. A trim panel tool is also needed to remove interior trim panels. Proper tools will improve installation quality and reduce time required.
The kit includes: a 4-pin taillight wiring harness with yellow and green connectors, a lighting module box, a white ground wire with ring terminal, a black power wire, a 4-way flat connector, cable ties, double-sided tape, a ground screw, a 4-flat dust cover, and a fuse holder with 10-amp fuse. The CME-PCL-INS sheet for powered converter lead routing is also referenced but you should verify it is included.
Yes. You must disconnect the negative battery cable before beginning installation and ensure it is isolated to protect from creating an electrical system ground. Grounding the negative cable to a metal item could cause damage to the vehicle's electrical system. Reconnect the battery only after all wiring is complete (Step 18).
The installation is rated as Difficult. Installation difficulty is based on time and effort involved and may vary depending on installer expertise, vehicle condition, and availability of proper tools and equipment. The process involves removing interior trim panels, routing wires through the vehicle structure, and making electrical connections.
The lighting module box mounts behind the driver's side trim panel, near the driver's side taillight connector. Locate a clean, flat area in this location and secure the box using the supplied double-sided tape (Step 12). The area should be clean and dry for proper adhesion.
After disconnecting the factory taillight connectors and connecting the yellow and green wires to the taillight mating connectors (Steps 5-7), route the harness along the vehicle's hatch wiring to the access boot next to the hinge on the driver's side. Secure it with supplied cable ties. Then use a fish wire to feed the 4-pin harness through the rubber weather boot and into the interior just above the headliner. Ensure the harness is routed entirely through the boot to prevent damage. Remount the protective boot and ensure the harness is not pinched or it will rub on the vehicle body structure.
Tuck the taillight wire harness between the headliner and vehicle roof toward the driver's side trim panel. Route the harness behind the trim panel and down into the rear cargo area. Connect the 4-pin taillight harness male connector to the mating connector on the lighting module, being careful not to break the locking tabs (Steps 11-13).
Locate a grounding point such as an existing screw or bolt in the vehicle frame, or drill a 3/32" pilot hole if necessary. The area must be free from rust, dirt, and paint—use an abrasive pad or paper to clean it. Secure the white ground wire with its ring terminal to the existing fastener or with the provided ground screw (Step 14). Before drilling, check for hidden items behind or under any surface to avoid damage and personal injury.
Route the black power wire from the vehicle battery as shown on the included CME-PCL-INS sheet. You may route it underneath the vehicle to the engine compartment through an existing grommet or rear cargo vent, or route it through the interior and out the firewall to the engine compartment. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect it from sharp edges. Secure the power wire to the vehicle chassis using the supplied cable ties and route it away from hot and rotating components (Steps 15-16).
Connect the black power wire to the positive battery terminal using a ring terminal. The power wire must be 12 GA or larger. Install a fuse holder with a 10-amp fuse in the power line—this is the maximum fuse rating allowed. Install the fuse after all other steps are complete. Do not exceed the 10-amp fuse rating, as exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Route the 4-way flat connector under the driver's side panel into the cargo area. Secure any loose wires with the supplied cable ties. When the 4-way harness is being used, do not pinch it in the hatch latch or the harness can be damaged. Store the 4-way connector in the rear cargo area when not in use (Steps 17-19).
Drilling may be required. You must locate a grounding point for the white ground wire. If an existing screw or bolt is available in the vehicle frame, no drilling is needed. If not, you must drill a 3/32" pilot hole. Before drilling, check for hidden items behind or under any surface to avoid damage and personal injury. The area must be cleaned of rust, dirt, and paint using an abrasive pad or paper.
Drill a 3/32" pilot hole for the ground screw if an existing fastener is not available. The area must be free from rust, dirt, and paint—clean it with an abrasive pad or paper before drilling. Always check for hidden items behind or under any surface before drilling to avoid damage and personal injury.
Signal circuits (left and right turn): 3 amps per side. Tail and running circuits: 6 amps total. The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
The wiring harness uses the following color code: Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight. The white wire is the ground wire with a ring terminal. The black wire is the power wire that connects to the positive battery terminal. These colors are used in both the taillight harness and the 4-way flat connector.
Disconnect the factory taillight wiring on both the driver's and passenger's sides of the hatch (Step 5). Starting on the driver's side, insert the connector with the yellow wire from the 4-pin taillight harness into the taillight's mating connector and the vehicle lighting harness (Step 6). Route the connector with the green wire to the center of the hatch and over to the passenger's side light pocket, then insert it into the taillight and vehicle's mating connectors (Step 7). Be careful not to break the locking tabs on the connectors.
The maximum fuse rating is 10 amps. The battery connection must be fuse-protected with a 10-amp fuse maximum. Do not exceed this rating, as exceeding the product rating can cause loss of warranty, overheating, and potential fire. Install the fuse after all other installation steps are complete.
Yes, the converter can be used as a powered module for a two-wire system. If using it this way, the red brake wire must be grounded to the vehicle chassis.
Disconnect the negative battery cable before beginning installation and ensure it is isolated to protect from creating an electrical system ground. Do not lay tools across the positive battery terminal (typically noted with red covers or a red '+' symbol), as this can cause a ground short leading to sparks and/or electrical shocks. Grounding the negative cable to a metal item could cause damage to the vehicle's electrical system. Reconnect the battery only after all wiring is complete.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. This is especially important when drilling the 3/32" ground screw hole. Inspect the area thoroughly before proceeding.
If the taillight harness is pinched or rubbed on the vehicle's body structure, it will result in damage to the lighting module. Ensure the harness is routed entirely through the protective boot and is not pinched when remounting the boot. Also ensure the 4-way harness is not pinched in the hatch latch, or the harness can be damaged.
After installing the T-connector harness, verify its operation using a test light, 4-way tester, multimeter, or by connecting the 4-way flat to a trailer with functioning lights. This confirms that all signal circuits (left turn, right turn, brake, and taillight) are working correctly before towing.
Reconnect the negative battery terminal and install the provided 4-flat dust cover to help prevent corrosion. Reinstall all removed items in the reverse order of disassembly. Verify operation using a test light, 4-way tester, multimeter, or by connecting a properly wired trailer with functioning lights. Store the 4-way connector in the rear cargo area when not in use.
Perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections. Check the 4-flat dust cover to ensure it is in place to help prevent corrosion. Inspect the lighting module box mounting to confirm the double-sided tape is holding securely. Verify that cable ties are secure and wires are not pinched or rubbing on vehicle surfaces.
The Curt 56571 is designed for SUVs and vans with 12-volt negative ground electrical systems. Verify your vehicle's electrical system type and confirm compatibility with the manufacturer or a fitment database before purchasing.
Yes, you must disconnect the negative battery cable before starting and ensure it is isolated. Reconnect it only after all wiring is complete. Grounding the negative cable to metal could damage the vehicle's electrical system.
The maximum fuse rating is 10 amps. Do not exceed this, as it can cause loss of warranty, overheating, and potential fire.
Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight, White = Ground, Black = Power to battery. The system is designed for 12-volt negative ground vehicles only.
If the taillight harness is damaged, it is likely due to pinching or rubbing on the vehicle's body structure. Inspect the harness routing to ensure it is routed entirely through the protective rubber weather boot and is not pinched when the boot is remounted. Verify that the harness is not rubbing on any vehicle body structure. If damage is found, the harness may need to be replaced. Ensure proper routing before reconnecting power.
Verify operation using a test light, 4-way tester, multimeter, or by connecting a properly wired trailer with functioning lights. Check that: (1) the negative battery cable is reconnected, (2) the 10-amp fuse is installed in the power line, (3) the white ground wire is securely attached to a clean, rust-free grounding point, (4) the black power wire is connected to the positive battery terminal, (5) the 4-pin taillight harness connectors are fully inserted into the lighting module without broken locking tabs, and (6) the yellow and green taillight connectors are properly connected to the factory taillight mating connectors.
If the 4-way connector is damaged, it is likely due to pinching in the hatch latch. Do not pinch the 4-way harness in the hatch latch or it can be damaged. Inspect the routing of the 4-way connector under the driver's side panel into the cargo area. Ensure it is routed away from the hatch latch and secured with cable ties to prevent movement. If damage is found, the connector may need to be replaced.
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2024 - 2026 | Hyundai Santa Fe | — |
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