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2020 - 2026 Buick Encore GX
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Always the correct part
We know our products
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Vehicle battery connection required
Includes fuse holder, battery connection wiring and other necessary wiring components
Includes fuse holder, battery connection wiring and other necessary wiring components
Warranty: One-Year Limited Warranty
Finish: Blank
Electrical System Type: 3W
Output Type: 4-Way Flat
Tail Light Circuits: 7.5 Amps
Turn and Brake Circuits: 5.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 45
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Buick Encore (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2020 - 2026 | Buick Encore GX | — |
Yes, the CURT 56488 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Buick Encore (Part #BKDK56488) is designed to fit the 2020-2026 Buick Encore GX.
The CURT 56488 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Buick Encore (Part #BKDK56488) fits the following vehicles: 2020-2026 Buick Encore GX. Always verify your specific year, make, and model before ordering.
The CURT 56488 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Buick Encore (Part #BKDK56488) fits 2020-2026 Buick Encore GX models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 56488 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Buick Encore (Part #BKDK56488) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part number 56488 is a powered converter lead and wiring harness system manufactured by Curt Manufacturing. It converts vehicle taillight signals (left turn, right turn, brake, and tail/running lights) to a 4-flat trailer connector. The system includes a black converter box that processes the signals and a custom wiring harness with yellow and green wires that connect to the vehicle's taillight connectors.
The Curt 56488 is designed for SUVs and Vans with 12 volt negative ground electrical systems. The manual does not list specific vehicle models, years, or trim levels. Contact the manufacturer or consult a fitment database to confirm compatibility with your specific vehicle before purchasing.
No. The Curt 56488 converter system is designed for 12 volt negative ground systems only. It will not function on vehicles with 12 volt positive ground electrical systems. Check your vehicle owner's manual to confirm your vehicle uses a 12 volt negative ground system before installing this product.
Required tools are: ratchet, 10mm socket, socket extension, T-45 Torx bit, panel trim removal tool, cutting tool, wire crimper, wire stripper, flathead screwdriver, and electrical tape. The manual notes that proper tools will improve the quality of installation and reduce the time required.
The kit includes a custom wiring harness with yellow and green wires, a black converter box, double-sided tape for mounting the converter box, cable ties for securing wires, a 4-flat dust cover, a white ground wire with ring terminal, a fuse holder, a screw for the ground wire connection, and butt connectors. The manual shows a Hardware Photo on page 1 but does not itemize each component by name.
Yes. Step 1 requires you to disconnect the negative battery terminal before beginning installation. Fasten this wire down and away from the battery while completing the installation process. The negative battery terminal must remain disconnected until all wiring steps are complete and you are ready to test the system.
Open the vehicle tailgate and remove all trunk floor coverings (Step 2). Then use a 10mm socket to remove the two cargo tie downs securing the rear side panels, and use a trim tool to remove the scuff panel by pulling straight up, taking care not to damage the alignment tabs (Step 3). Remove the storage trays using a T-45 Torx bit and extension (Step 4). These steps provide access to the taillight wiring harness connectors.
Use a panel trim removal tool to pull back the side trim panel on the driver side, taking care not to damage the push fasteners. Locate the vehicle taillight wiring harness connectors. Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Insert the custom wiring harness end with the yellow wire between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side with the green wire (Steps 5-6).
Locate a flat clean surface behind the trunk liner on the driver side that is out of the path of spray and debris from the rear wheels and road. Adhere the black converter box using the provided double-sided tape or cable ties. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating, and potential fire.
Route the black power wire from the vehicle battery as shown on the last page of the manual (page 4). The wire must be 12 GA or larger. Route it to avoid any pinch points and hot or rotating components. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the power wire from sharp edges. Secure the power wire to the vehicle chassis using the provided cable ties.
The wiring harness uses the following colour code: Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight. The custom wiring harness has a yellow wire for the driver side and a green wire for the passenger side. The converter box also has a white ground wire and a black power wire that connects to the vehicle battery positive terminal.
The battery connection must be fuse-protected with a maximum of 10 amps. The fuse holder included with the kit has a 15 amp fuse maximum. Install the fuse after all other steps are complete. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Signal circuits (left turn and right turn): 5.0 amps per side. Tail/Running circuits: 7.5 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
Attach the ring terminal of the white ground wire to the vehicle body using the screw provided. If necessary, drill a 3/32 inch hole to mount the ground wire. Ensure the connection is secure and on a clean, bare metal surface of the vehicle chassis.
Do not lay tools across the positive battery terminal (typically noted with red covers or a '+' symbol), as this can cause a ground short resulting in sparks and/or electrical shocks. Disconnect the negative battery terminal before wiring the power wire. The battery connection must be fuse-protected with a 10-amp maximum. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Before drilling, check for miscellaneous items that may be behind or under any surface. This prevents personal injury or property damage. The only drilling required is a 3/32 inch hole for the white ground wire connection if an existing mounting point is not available.
Once the 12 volt power wire is connected to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. All steps must be followed to ensure the product will function properly.
Reinstall all items removed during installation. If the negative battery terminal was disconnected at the beginning, reconnect it. Install the provided 4-flat dust cover to help prevent corrosion. When in use, route the 4-flat connector to the center of the vehicle and out of the trunk. When not in use, roll up and store in a convenient, out-of-the-way location inside the trunk.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. The manual does not specify an inspection interval or other maintenance procedures.
When in use, route the 4-flat connector to the center of the vehicle and out of the trunk. When not in use, roll up and store in a convenient, out-of-the-way location inside the trunk.
The installation difficulty level is rated as Easy. However, the manual notes that installation difficulty levels are based on time and effort involved and may vary depending on the installer's level of expertise, the condition of the vehicle, and having proper tools and equipment.
The Curt 56488 is designed for SUVs and vans with 12 volt negative ground electrical systems. Confirm your vehicle's electrical system type in your owner's manual, then check with the manufacturer or a fitment database for your specific vehicle model and year.
You will need: ratchet, 10mm socket, socket extension, T-45 Torx bit, panel trim removal tool, cutting tool, wire crimper, wire stripper, flathead screwdriver, and electrical tape.
Yes. Disconnect the negative battery terminal before beginning installation and keep it disconnected until all wiring is complete and you are ready to test the system.
The battery connection must be fuse-protected with a maximum of 10 amps. Exceeding this rating can cause loss of warranty, overheating, and potential fire.
Mount the black converter box on a flat clean surface behind the trunk liner on the driver side, away from spray and debris from the rear wheels and road. Use the provided double-sided tape or cable ties. Mounting in an unprotected area can cause product failure, overheating, and potential fire.
Periodically inspect all wires and connections to ensure there is no visible damage or loose connections.
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