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Complete CURT Class 3 2" trailer hitch and 4-flat custom wiring kit engineered for the 2022 - 2026 Toyota Corolla Cross, w/o LED Taillights. Vehicle-specific fit, plug-and-play installation, all hardware and instructions included.
This custom kit fits the following vehicles:
All Hardware and Installation Instructions Included!
However you define adventure -- whether it's climbing onto the back of a mountain bike, hunting from the top of a tree stand or camping with the family a long way from nowhere -- CURT class 1 hitches provide a light-duty towing receiver to help you Bring It. Each is made to fit a specific vehicle, providing easier installation, a better fit and optimal towing capacity. Custom class 1 trailer hitches are available for a variety of smaller vehicle types, including the compact car, crossover, minivan and small SUV. This particular class 1 hitch is designed to be a custom hitch for certain years of the Toyota Corolla Cross (to verify vehicle compatibility, see the CURT application guide at curtmfg.com). Tested in accordance with SAE J684, it offers a weight carrying capacity of 2,000 lbs. GTW and 200 lbs. TW. It is equipped with 2" receiver tube opening to accept a ball mount shank or other hitch mount. This class 1 hitch also comes with all necessary mounting hardware. With its lightweight design and smaller receiver tube size, a class 1 hitch is especially useful for adding cargo space with a hitch-mounted bike rack or cargo carrier. They can also typically be used to tow small trailers such as a utility trailer, kayak trailer or teardrop camper (never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). Though CURT class 1 trailer hitches are only intended for light-duty towing, we apply the same principles of quality as we do to the rest of our rear mount hitches. Each class 1 hitch is made with hands-on engineering, high-strength steel and precise welding. We use a co-cured finish of liquid A-coat, inside and out, and durable black powder coat to provide a lasting defense against rust, chips and UV rays.
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 Toyota Corolla Cross (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®.'
Experts available to answer your questions
Call 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2022 - 2026 | Toyota Corolla Cross | w/o LED Taillights |
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Authorized DealerThe manual does not specify the vehicle make, model, or year. Contact CURT product support at 877.287.8634 or visit curtmfg.com to confirm fitment for your vehicle.
The CURT 11637 has a gross trailer weight (GTW) capacity of 2,000 lbs and a tongue weight (TW) capacity of 200 lbs. Never exceed your vehicle manufacturer's recommended towing capacity.
Required tools: ratchet, torque wrench, paint marker or masking tape, utility knife or aviation shears, 10mm socket, 12mm socket, 13mm socket, tape measure, flathead screwdriver, and Phillips screwdriver. A tools reference guide is available at curtmfg.com/trailer-hitch-installation.
The kit includes 8 hex head cap screws (M8) and 8 conical-toothed washers (3/8"). These fasteners are used to secure the hitch to the vehicle frame.
Installation requires removal of both taillights, the bumper beam (8 bolts), and the bumper cover. The bumper cover fascia must also be trimmed. Mudguards, if present, must be removed.
The manual does not specify whether the battery must be disconnected. Contact CURT product support at 877.287.8634 for guidance on electrical safety before beginning installation.
Open the rear hatch and use a 10mm socket to remove two screws from each taillight. Carefully slide each taillight rearward—it will make a snap sound when removed. Unplug the electrical connectors and set the taillights aside.
Remove four 10mm socket screws and two Phillips head screws from the bumper cover in the hatch area (Step 2). Remove mudguards if present (Step 3). Remove five plastic push rivets from each side in the wheel well area using a flathead screwdriver (Step 4). Pull the bumper cover outward to peel the wheel well liner to the tire for hand access. Remove the plastic push rivet at the top of the bumper cover on each side (Step 5). Unplug any electrical components. Finally, use a 12mm socket to remove the eight bolts securing the bumper beam (Step 6).
Place the hitch into position aligning with the bumper beam holes. Loosely install the supplied M8 bolts and conical washers as shown in the assembly diagram. Do not fully tighten at this stage.
Torque all M8 fasteners to 23 ft-lbs.
No drilling is required. The hitch aligns with existing bumper beam holes. However, trimming of the bumper cover fascia is required.
Measure and mark the center area of the fascia: 3 inches from each side and 2-5/8 inches from the top, with a 1-5/8 inch height. Before cutting, verify there are no electrical components in the marked area. After trimming, hold the bumper cover in position to check if further trimming is required.
Use a utility knife or aviation shears to trim the bumper cover fascia.
The manual instructs you to measure and mark the center area of the fascia before cutting and to be sure there are not electric components in the marked area. If you are unsure whether electrical components are present, contact CURT product support at 877.287.8634 or consult your vehicle's service manual.
Reinstall the bumper cover by reversing the removal steps. Reconnect any electrical components removed earlier. Reinstall the mudguards and taillights.
Wear safety glasses at all times while installing this product. Before trimming the bumper cover fascia, verify there are no electrical components in the marked cutting area. Never exceed your vehicle manufacturer's recommended towing capacity.
Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure. Verify all M8 fasteners are torqued to 23 ft-lbs.
The manual states that periodic inspection should be performed to ensure all mounting hardware remains tight and structural components are secure, but does not specify an inspection interval. Contact CURT product support at 877.287.8634 for recommended inspection frequency.
The manual does not specify a retorque interval. Contact CURT product support at 877.287.8634 for guidance on retorque schedules.
The Curt 56479 is a powered converter lead that converts your vehicle's factory taillight wiring to a 4-flat trailer connector. It allows you to connect a trailer with functioning lights to your passenger car without requiring permanent modifications to the vehicle's electrical system.
The Curt 56479 is designed for passenger cars with 12-volt negative ground electrical systems. The manual does not provide a specific vehicle compatibility list. Contact Curt Manufacturing or consult your vehicle's owner's manual to confirm compatibility with your specific make, model and year.
The manual specifies that the Curt 56479 is designed for passenger cars. The wiring location guide provided is for passenger cars only. Compatibility with trucks, SUVs or other body styles is not addressed in the manual. Contact the manufacturer to confirm fitment on your vehicle type.
You will need: ratchet, 10mm socket, socket extension, cutting tool, wire crimper, wire stripper, electrical tape, and a 3/32" drill bit (if drilling a ground hole). A fish wire or equivalent (cut-up wire hanger, stiff wire, rope or string) is also required to route wiring through blind holes.
The kit includes: a black converter box, yellow, green, white, red and brown wires, a 4-flat dust cover, double-sided tape, zip ties, a ground screw, a ring terminal, a fuse holder with 10-amp fuse, and butt connectors. The manual does not specify the exact quantity of each item.
Yes. Step 1 requires you to locate the vehicle battery in the engine compartment on the driver side and disconnect the negative battery terminal. Fasten this wire down and away from the battery while completing the installation. The battery must remain disconnected until Step 9, when you reconnect the negative terminal after all other work is complete.
The installation 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 whether proper tools and equipment are available.
Open the rear hatch and locate the taillight fasteners on the driver side. Using a 10mm socket, remove the two bolts in the taillight trim. Then pull the taillight straight back. Locate the vehicle taillight wiring connectors, which will be similar to those on the custom wiring product. Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Set the taillight aside in a safe place. Repeat this process on the passenger side.
Fish wiring is a technique to push or pull an electrical wire through a blind hole. Make sure the wire is long enough to stick out on the other side. Insert the fish wire through the blind hole and locate it on the other side. Use tape to secure the harness to the fish wire and pull back up. If the fish wire or harness gets hung up, you may need to push back down, wiggle it around, or twist the wire to loosen it. Fish wire can be anything from a cut-up wire hanger, stiff wire, rope or string depending on what is needed.
Route a fish wire down between the bumper cover in the further rear opening of the bumper cover and the body of the vehicle. Repeat on the other side. Connect the yellow wire to the fish wire and pull up to the factory harness connector. Insert the custom wiring end with the yellow wire between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place.
Route the housing with the green wire above the bumper mount and along the back side of the bumper to the passenger side of the vehicle. Zip tie as needed along the bumper.
Not necessarily. On the driver side, locate a grounding point such as an existing screw or bolt in the frame of the vehicle. If no suitable existing fastener is available, you may drill a 3/32" pilot hole. The area should be free from rust, dirt, and paint—use an abrasive pad or paper to remove rust and paint. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
If you need to drill a ground hole, drill a 3/32" pilot hole. This hole is for securing the white ground wire with the ring terminal using the provided ground screw.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. This is a critical safety step to prevent hitting hidden wiring, fuel lines, brake lines or other components.
Signal circuits: 3.0 amps per side. Tail/Running circuits: 6.0 amps total. 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.
Use a 10mm socket to remove the two bolts in the taillight trim on each side of the vehicle.
Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight. These wires connect to the corresponding circuits in your vehicle's taillight system.
Route a 12-gauge wire or larger to the vehicle battery location, taking care to avoid any pinch points and hot or rotating components. Use an existing grommet, add a grommet, or use silicone to protect the power wire from sharp edges when passing through sheet metal. Connect the black wire to the positive battery terminal (+) using a ring terminal. The battery connection must be fuse-protected with a 10-amp maximum fuse. Install the fuse after all other steps are complete. Do not lay tools across the positive battery terminal, as this can cause a ground short, resulting in sparks and/or electrical shocks.
The maximum fuse rating is 10 amps. The battery connection must be fuse-protected with a 10-amp max fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire.
Use 12-gauge wire or larger for the power connection from the battery to the converter.
Attach the ring terminal of the white ground wire to the vehicle body using an existing screw or bolt in the frame, or using the provided ground screw in a 3/32" hole if necessary. The area should be free from rust, dirt, and paint—use an abrasive pad or paper to clean it.
If using the converter as a powered module for a two-wire system, the red brake wire must be grounded.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. The product has the following electrical ratings: Signal circuits 3.0 amps per side, and Tail/Running circuits 6.0 amps total. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
No. The Curt 56479 is designed for 12-volt negative ground systems only. It is not compatible with 24-volt systems or positive ground systems.
Once the custom harness is installed, verify that it is functioning by attaching the 4-flat connector to any trailer with functioning lights. You can also test for proper function using a test light or connecting a properly wired trailer.
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. Verify that the harness is functioning by attaching the 4-flat to any trailer with functioning lights.
Install the 10-amp fuse after all other installation steps are complete. Do not install the fuse until the power wire is fully routed, connected and secured.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. This helps maintain proper function and prevent electrical issues.
The provided 4-flat dust cover helps prevent corrosion of the connector. Install it after completing the installation.
The Curt 56479 is designed for passenger cars with 12-volt negative ground electrical systems. The manual does not provide a specific vehicle compatibility list. Contact Curt Manufacturing or your vehicle manufacturer to confirm fitment.
Yes. Disconnect the negative battery terminal before beginning installation and keep it disconnected until Step 9, when you reconnect it after all other work is complete.
Drilling is not always required. You can use an existing screw or bolt in the vehicle frame for the ground connection. If no suitable fastener exists, drill a 3/32" pilot hole. Always check for hidden items before drilling.
The maximum fuse rating is 10 amps. The battery connection must be fuse-protected with a 10-amp max fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire.
Use 12-gauge wire or larger for the power connection from the battery to the converter.
The Curt 56479 is designed for 12-volt negative ground systems only. It is not compatible with 24-volt systems or positive ground systems.
Periodically inspect all wires and connections to ensure there is no visible damage or loose connections.
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