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Complete CURT Class 1 1-1/4" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2012 - 2016 Chevrolet Sonic Sedan. 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 Chevy Sonic (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 1-1/4" 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 Chevy Sonic with tow package (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 |
|---|---|---|
| 2016 - 2020 | Chevrolet Sonic | Sedan |
Yes, the 16 - 20 Chevrolet Sonic Sedan Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11240 (Part #5W-CHW-650) is designed to fit the 2016-2020 Chevrolet Sonic.
The 16 - 20 Chevrolet Sonic Sedan Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11240 (Part #5W-CHW-650) fits 2016-2020 Chevrolet Sonic models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The 16 - 20 Chevrolet Sonic Sedan Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11240 (Part #5W-CHW-650) fits the following vehicles: 2016-2020 Chevrolet Sonic. Always verify your specific year, make, and model before ordering.
The 16 - 20 Chevrolet Sonic Sedan Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11240 (Part #5W-CHW-650) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, CURT hitch 11240 is designed for 2012-Present Chevrolet Sonic Sedan. The installation method is the same for all years in this range except 2017 models, which require hole enlargement as described in the manual.
Yes, CURT hitch 11240 fits 2017 and newer Chevrolet Sonic Sedans. However, 2017 models require a modification: the forward-most attachment hole on both sides must be enlarged to 1 inch using a drill and 1" drill bit. This enlarged hole then serves as the new access hole for the fishwire and carriage bolts.
The manual specifies a minimum trailer weight of 2000 lbs. and minimum tongue weight of 200 lbs. However, you must never exceed your vehicle manufacturer's recommended towing capacity. Consult your vehicle's owner manual for the maximum towing capacity of your specific Chevrolet Sonic Sedan.
Non-trailer (wheel-less) loads applied to this hitch must be supported by CURT 18050 stabilizing straps. Failure to properly support non-trailer loads will void the product warranty. See the CURT catalog or visit www.curtmfg.com for further information about the 18050 straps.
CURT hitch 11240 is designed for use with ballmount #D-20/45520. Euro mount options are also available: #45561 (1 7/8" ball) and #45562 (2" ball).
You will need: a ratchet, 11/16" socket, torque wrench, power drill, 1" drill bit, and safety glasses. The 1" drill bit is required only for 2017 models to enlarge the forward-most attachment holes.
The hitch includes: 4 carriage bolts (7/16-14 UNC, 1-1/2", Grade 8, yellow zinc), 4 spacers (.250 x .88 x 2.25"), 4 pieces of 7/16" fishwire, and 4 hex flange nuts (7/16-14 UNC, Grade 8, yellow zinc). All fasteners are Grade 8 and must be torqued to 70 ft.-lbs.
Two people may be required to ease installation. The manual recommends having a second person available, particularly when raising the hitch into position.
Safety glasses must be worn at all times while installing this product. If you are hesitant to undertake this task on your own, contact an authorized CURT installer for additional assistance. You can call CURT Technical Support at 877-287-8634 for help.
1. Fishwire the CM-SP2 spacers and 7/16-14 carriage bolts through the access hole in the frame rail and down through the attachment hole (2 places on each side). For 2017 models, enlarge the forward-most attachment hole to 1 inch and use it as the new access hole, reversing the fishwire in the access hole to use as the attachment point. 2. Raise the hitch into position, lifting the driver side first over the tailpipe, then the passenger side. 3. Secure with 7/16" hex flange nuts. 4. Torque all 7/16-14 fasteners to 70 ft.-lbs.
Drilling is required only for 2017 models. The forward-most attachment hole on both the driver and passenger sides must be enlarged to 1 inch using a power drill and 1" drill bit. This enlarged hole then serves as the new access hole for the fishwire and carriage bolts. For pre-2017 models, no drilling is required.
All 7/16-14 fasteners must be torqued to 70 ft.-lbs. This includes the carriage bolts and hex flange nuts. Use a torque wrench to ensure proper tightening.
Periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. The manual recommends regular inspection to maintain the integrity of the installation.
The manual recommends periodically checking the receiver hitch to ensure all fasteners are tight and all structural components are sound. While a specific interval is not provided, regular inspection before towing is a best practice.
Yes, CURT 11240 fits all 2012-Present Chevrolet Sonic Sedans. 2017 models require hole enlargement to 1 inch on both sides.
Ratchet, 11/16" socket, torque wrench, power drill, 1" drill bit (for 2017+ models), and safety glasses.
Yes, but only for 2017 models. The forward-most attachment hole on both sides must be enlarged to 1 inch using a 1" drill bit.
All 7/16-14 fasteners must be torqued to 70 ft.-lbs.
Two people may be required to ease installation, particularly when raising the hitch into position.
Wear safety glasses at all times. Never exceed your vehicle manufacturer's recommended towing capacity. All non-trailer loads must be supported by CURT 18050 stabilizing straps.
The CURT 56303 is a powered converter lead that converts vehicle taillight signals to trailer lighting signals. It includes a converter box that processes left turn (yellow wire), right turn (green wire), brake (red wire), and taillight (brown wire) signals for use with a 4-flat trailer connector. The system is designed for passenger cars with 12-volt negative ground electrical systems.
The CURT 56303 is designed for passenger cars with 12-volt negative ground electrical systems. The manual does not specify which vehicle makes or models are compatible. Contact CURT or consult your vehicle's owner's manual to confirm your vehicle has a 12-volt negative ground system before purchasing.
Required tools are: ratchet, cutting tool, 10mm socket, wire stripper, Phillips screwdriver, wire crimper, flat blade screwdriver, and panel trim removal tool. Proper tools will improve installation quality and reduce installation time.
The kit includes: a custom wiring harness with yellow and green wire ends, a black converter box, a white ground wire with ring terminal, a black power wire, a provided screw for grounding, double-sided tape for mounting the converter, cable ties for securing loose wires, a 4-flat dust cover, and a 15-amp fuse holder with 15-amp fuse.
Yes. You must disconnect the negative battery terminal before beginning installation. This is stated in Step 1 and reinforced in the Powered Converter Lead Instruction Sheet, which specifically warns to disconnect the negative battery cable before wiring the power wire.
Open the vehicle tailgate and remove all trunk floor coverings. Remove the scuff panel by pulling out on the bottom and then up. Remove the inspection cover on the driver side trunk liner by carefully removing two plastic push fasteners with a flathead screwdriver and one side fastener on the passenger side with a Phillips screwdriver. Pull back the felt liner to access the vehicle taillight wiring harness connectors.
Locate the vehicle taillight wiring harness connectors behind the trunk liner. The connectors will be similar to those on the custom wiring harness. 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 harness end with the green wire.
Drilling may be required for the ground wire connection. You may need to drill a 3/32" pilot hole for the provided screw if a suitable existing screw with nut is not available in the vehicle frame near the connector. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
Drill a 3/32" pilot hole if a suitable existing screw with nut is not available in the vehicle frame near the connector. The area should be free of rust, dirt and paint before drilling.
Signal circuits (left and right turn): 5.0 amps per side. Tail/Running circuits: 7.5 amps total. Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. The battery connection must be fuse-protected with a 15-amp maximum fuse. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
Yellow wire = Left turn signal. Green wire = Right turn signal. Red wire = Brake signal. Brown wire = Taillight/running light. The custom wiring harness has separate ends with yellow and green wires for the driver and passenger sides respectively.
Route the 12 GA black power wire from the vehicle battery to the converter, taking care 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 manual includes a diagram on the last page showing the routing path.
The battery connection must be fuse-protected with a 15-amp maximum fuse. A fuse holder with 15-amp fuse is provided. Install the fuse after all other installation steps are complete. Exceeding the 15-amp rating can cause loss of warranty, overheating and potential fire.
Secure the white ground wire using the ring terminal and provided screw to a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing screw is available, drill a 3/32" pilot hole. The area should be free of rust, dirt and paint before securing the ground wire.
Locate a flat clean surface 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. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating and potential fire.
The provided 4-flat dust cover helps prevent corrosion of the 4-flat connector. Install it after all other installation steps are complete.
When not in use, roll up the 4-flat connector and store it in a convenient, out of the way location. When in use, route the 4-flat to the center of the vehicle.
The maximum fuse rating is 15 amps. The battery connection must be fuse-protected with a 15-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire.
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" pilot hole for the ground wire screw.
Route the 12 GA black power wire to the vehicle battery location, taking care 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.
Reinstall all items removed during installation and reconnect the negative battery terminal. Install the provided 4-flat dust cover. Test for proper function by using a test light or connecting a properly wired trailer. Once installed, perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections.
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 warranty loss.
The CURT 56303 is designed for passenger cars with 12-volt negative ground electrical systems. Consult your vehicle's owner's manual or contact CURT to confirm compatibility before purchasing.
Yes, you must disconnect the negative battery terminal before beginning installation.
The maximum fuse rating is 15 amps. The battery connection must be fuse-protected with a 15-amp maximum fuse.
Use 12 GA wire or larger for the power wire routing from the vehicle battery to the converter.
The installation difficulty level is Moderate. Read all instructions thoroughly before beginning, and follow all steps to ensure proper function.
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