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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 2013 - 2019 Cadillac ATS Excluding 'V' models. 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 Cadillac ATS (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 Cadillac ATS (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 |
|---|---|---|
| 2013 - 2019 | Cadillac ATS | Excluding 'V' models |
Yes, the 13 - 19 Cadillac ATS Excluding 'V' models Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11311 (Part #5W-CHW-226) is designed to fit the 2013-2019 Cadillac ATS.
The 13 - 19 Cadillac ATS Excluding 'V' models Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11311 (Part #5W-CHW-226) fits the following vehicles: 2013-2019 Cadillac ATS. Always verify your specific year, make, and model before ordering.
The 13 - 19 Cadillac ATS Excluding 'V' models Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11311 (Part #5W-CHW-226) fits 2013-2019 Cadillac ATS models. The 2019 model year is the last year covered by this part number. For newer models, check for an updated version.
The 13 - 19 Cadillac ATS Excluding 'V' models Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11311 (Part #5W-CHW-226) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, CURT part number 11311 is designed for 2013-present Cadillac ATS in both sedan and coupe body styles. Verify your vehicle matches this specification before purchasing.
The CURT 11311 is rated for a maximum of 2,000 lbs trailer weight and 200 lbs tongue weight when used as a weight-carrying hitch. However, you must never exceed your vehicle manufacturer's recommended towing capacity, which may be lower. Check your vehicle's owner manual for the final towing limit.
The CURT 11311 is designed for use with ballmount #45022 (D-230). Euro mount options are also available: #45571 (1 7/8" ball) and #45572 (2" ball).
Required tools include: T-15 Torx bit socket, ratchet, socket set (7mm, 10mm, 13mm, 15mm, and 3/4"), pry bar, spray lubricant, cut-off wheel, tape measure, marker, aviation shears, and a torque wrench. Safety glasses must be worn at all times during installation.
Two people may be required to ease installation. While one person may be able to complete the job, having a second person is recommended, particularly when raising the hitch and exhaust into position simultaneously in step 9.
No, drilling is not required. The hitch uses existing holes in the vehicle frame. However, plastic fascia trimming and heat shield trimming are required.
Two areas require trimming: (1) the plastic fascia at the bottom of the vehicle must be trimmed approximately 1-3/8" on each side to allow hitch side plate reinstallation, and (2) the heat shield must be trimmed to allow access to both frame rails. The studs that secured the heat shield to the frame rails must also be cut off.
The exhaust system must be lowered but not fully removed. You must remove the exhaust hanger brackets (2 bolts on each side from the frame rails) and the rubber exhaust hangers (4 places on sedans, 3 places on coupes). The exhaust support strap may also need to be removed to allow the exhaust to hang lower. After hitch installation, the exhaust is raised back into position and the support strap is reattached.
Fishwiring is a technique where the 1/2" carriage bolts and spacer blocks are threaded up through slots in the vehicle frame and down through the attaching holes in the hitch side plates. This allows the bolts to be positioned correctly before the hitch is raised into final position. The fishwire (a flexible wire guide) helps guide the bolts through the frame slots from below.
All 1/2" hardware (the carriage bolts and flange hex nuts) must be torqued to 110 lb-ft. Use a torque wrench to ensure proper tightening.
The kit includes: (4) 1/2-13 UNC grade 8 carriage bolts, 1-1/2" long (part 10-10287); (4) 1/2-13 UNC grade 8 serrated flange hex nuts (part 20-00062); (4) 0.250 x 1.00 x 3.00" square hole spacers (part CM-SP6); and (4) 1/2" x 30" fishwire (part 1_2 x 30 FISHWIRE). Additionally, (6) heat shield nuts are retained from vehicle removal for reinstallation.
There are 14 screws that secure the plastic fascia to the bottom of the vehicle. On coupe models, these fasteners are removed with a 7mm socket.
There are 8 nuts that secure the heat shield to the vehicle. After removal, 6 of these nuts must be retained for reinstallation after the heat shield is trimmed.
All 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. Refer to the CURT catalog or www.curtmfg.com for further information on these straps.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. This ongoing inspection helps maintain the integrity and safety of the installation.
CURT Manufacturing warrants this product to be free of defects in material and workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective, CURT may repair or replace it at their option when returned prepaid with proof of purchase. Alteration, misuse, or improper installation voids the warranty.
Yes, the CURT 11311 is designed for 2013-present Cadillac ATS sedans and coupes. Maximum towing capacity is 2,000 lbs trailer weight and 200 lbs tongue weight, but never exceed your vehicle manufacturer's recommended limit.
No drilling is required. The hitch uses existing frame holes. However, you must trim the plastic fascia (approximately 1-3/8" each side) and the heat shield, and cut off the heat shield studs from the frame rails.
You need: T-15 Torx socket, ratchet, socket set (7mm, 10mm, 13mm, 15mm, 3/4"), pry bar, spray lubricant, cut-off wheel, tape measure, marker, aviation shears, torque wrench, and safety glasses.
The exhaust must be lowered but not fully removed. Remove the hanger brackets and rubber hangers, and possibly the support strap. After hitch installation, raise the exhaust back into position and reattach the support strap.
All 1/2" hardware must be torqued to 110 lb-ft using a torque wrench.
All non-trailer loads must be supported by CURT 18050 stabilizing straps. Failure to do so voids the warranty. See www.curtmfg.com for details.
Periodically verify that all fasteners are tight and all structural components are sound.
Yes, the Curt 56180 T-Connector wiring harness is designed for the Cadillac ATS. The manual covers installation on this vehicle model.
The Curt 56180 is a T-Connector wiring harness with a converter module that integrates with your Cadillac ATS taillight wiring to provide trailer lighting control. It includes a converter box that processes the vehicle's lighting signals and outputs a 4-flat connector for trailer use.
The manual does not explicitly require battery disconnection before installation. However, the installation does involve connecting a power wire from the battery with a 10 amp fuse. For safety, consider disconnecting the battery before working with electrical connections, or consult the vehicle manufacturer's guidance.
Open the trunk and remove: all trunk floor covers, the rear scuff panel (by removing two cargo loops and pulling out at the bottom and up at the top), and plastic fasteners holding the felt trunk liner in place on both sides. You will pull back the felt trunk liner to access the taillight wiring harness connectors but do not need to fully remove it.
On the driver's side, pull back the felt trunk liner to locate the vehicle's taillight wiring harness connectors. Separate the connectors carefully without damaging the locking tabs. Insert the T-Connector end with the yellow wire between the separated connectors, ensuring the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the T-Connector end with the green wire.
Drilling may be required for the ground wire connection. The manual instructs you to locate a suitable grounding point such as an existing screw with nut in the vehicle's frame. If no existing screw is available, drill a 3/32" hole and secure the eyelet of the white ground wire using the provided screw. Always verify that miscellaneous items are not hidden behind or under any surface before drilling to avoid damage and personal injury.
If an existing screw with nut is not available, drill a 3/32" hole to secure the eyelet of the white ground wire using the provided screw.
The Curt 56180 uses the following wire colours: yellow wire on the T-Connector end for the driver's side taillight connection, green wire on the T-Connector end for the passenger's side taillight connection, white wire for the ground connection, and black wire for the power connection from the battery.
The battery connection must be fuse protected at a maximum of 10 amps. Exceeding this rating can cause loss of warranty, overheating and potential fire. Do not exceed the lower of your tow vehicle's lamp load rating or the product's signal circuit limit of 3.0 amps per side and tail/running light limit of 6.0 amps total.
The Curt 56180 has the following maximum amperage ratings: Signal circuits – 3.0 amps per side; Tail/Running Lights – 6.0 amps total. Do not exceed these ratings or the lower of your tow vehicle's lamp load rating. Exceeding these limits can cause loss of warranty, overheating and potential fire.
The converter module must be mounted inside the tow vehicle or in a protected area similar to a vehicle interior. Mount it on a flat spot behind the felt trunk liner using the double-sided tape provided. Failure to mount the module in a protected area can cause loss of warranty, product failure including lamp malfunction, overheating and potential fire.
Use the provided cable ties to secure any loose wires, particularly when routing the T-Connector end with the green wire to the passenger side behind the removed scuff panel.
Route the 4-flat connector out from under the felt trunk liner to the center of the vehicle when in use. Roll it up and store in an out-of-the-way location when not in use.
Reinstall all items removed during installation: trunk floor covers, rear scuff panel, and plastic fasteners holding the felt trunk liner in place. Ensure the converter module is securely mounted, all connectors are fully inserted with locking tabs in place, and all wires are secured with cable ties.
The Curt 56180 includes: a T-Connector harness with yellow and green wire ends, a white ground wire with eyelet, a black power wire, a black converter box, double-sided tape for mounting the converter box, a screw for the ground wire connection, and cable ties for securing loose wires.
The manual does not specify required tools. However, based on the installation steps, you will likely need: a drill with a 3/32" bit (if drilling is required for the ground wire), a screwdriver (to remove trunk components and secure the ground wire), and possibly a wrench or socket (if tightening the ground wire screw to an existing frame screw with nut). Consult the included CME-PCL-INS sheet for battery connection routing details.
Yes, the Curt 56180 is designed for the Cadillac ATS.
10 amps maximum. Exceeding this rating can cause overheating and fire.
Inside the vehicle or in a protected area similar to a vehicle interior. Mounting it outside can cause product failure, lamp malfunction, overheating and fire.
Signal circuits: 3.0 amps per side. Tail/Running lights: 6.0 amps total. Do not exceed these or your vehicle's lamp load rating.
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