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Complete CURT Class 2 1-1/4" trailer hitch and 4-flat custom wiring kit engineered for the 2003 - 2008 Toyota Matrix Excluding XR and XRS. 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!
Whatever the next checkpoint is on your adventure -- whether it's getting your bike on the trail before sunrise or making it to the campground before dark -- CURT class 2 hitches let you Bring It with confidence. These receiver hitches are made to handle most light-duty towing applications and offer a custom fit for your vehicle. Typically used on full-size cars, crossovers, compact SUVs, minivans or even compact pickup trucks, a CURT class 2 trailer hitch complements the design of smaller vehicles. This particular class 2 hitch is made to be a custom hitch for certain years of the Pontiac Vibe and Toyota Matrix (to verify vehicle compatibility, see application info). It offers a weight carrying capacity of 2,500 lbs. GTW and 250 lbs. TW. Class 2 trailer hitches can typically be used to tow a variety of lightweight trailers, such as a small utility trailer, small fishing boat trailer or popup camper (NOTE: Never exceed the lowest weight capacity of any towing component). They are also perfect for adding cargo space to your vehicle with a bike rack or cargo carrier. This class 2 hitch features a 1-1/4" receiver tube to accept a ball mount shank or other hitch-mounted accessory. For safety, it is tested in accordance with SAE J684. A custom trailer hitch design requires extra care, and as such, CURT class 2 hitches are engineered using real vehicles and hands-on research. We use high-strength steel, robotic welding and rigorous testing to produce hitches that are built to fit your lifestyle. To ensure that each hitch will be a reliable extension of your vehicle, we also finish our hitches in a co-curing of liquid A-coat and black powder coat, giving them long-lasting rust and wear resistance.
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 Matrix and Echo (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 |
|---|---|---|
| 2003 - 2008 | Toyota Matrix | Excluding XR and XRS |
The hitch weight is 24,880 lbs.
Yes, Curt part number 12221 is designed for Pontiac Vibe and Toyota Matrix all models.
The Toyota Matrix XR and XRS lower valance may require minor trimming to accommodate the hitch. Heat shield modification may also be required on either frame rail.
You will need a ratchet, 10" extension, 19mm socket, and a torque wrench.
The hitch includes 4 hex bolts (M12x1.25, 30mm, Class 10.9, zinc-plated, part number 10-10419) and 4 conical toothed washers (1/2", part number 30-00149).
No, drilling is not required. The hitch uses existing weld nuts in the frame rails.
The Curt 12221 is designed for use with ball mount part number D-55001 or 45501.
Torque the M12x1.25 hex bolts to 86 lb-ft.
1. Raise the hitch into position over the exhaust and align the slots in the hitch with the weld nuts in the frame rails closest to the rear end of the vehicle. 2. Install the hex bolts and conical toothed washers into the weld nuts. 3. Torque the bolts to 86 lb-ft.
Do not exceed your vehicle manufacturer's recommended towing capacity. The manual specifies a gross load capacity when used as a weight-carrying hitch, but the exact values are not clearly visible in the provided documentation. Contact Curt Technical Support at 1-877-287-8634 for your specific vehicle's capacity.
All non-trailer loads applied to this hitch must be supported by auxiliary stabilizing straps. Failure to properly support non-trailer loads will void the product warranty.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound.
Yes, it fits all Pontiac Vibe and Toyota Matrix models. Toyota Matrix XR and XRS may require minor lower valance trimming.
No drilling required. The hitch uses existing frame rail weld nuts.
Ratchet, 10" extension, 19mm socket, and torque wrench.
Torque M12x1.25 hex bolts to 86 lb-ft.
Non-trailer loads must be supported by auxiliary stabilizing straps. Improper support voids the warranty.
Periodically check that all fasteners are tight and structural components are sound.
Part number 55522 is designed for Toyota Matrix and Toyota Echo vehicles only. It will not fit other Toyota models or years. Verify your vehicle model before purchasing.
The 55522 is a T-Connector that integrates with your vehicle's taillight wiring harness to provide a connection point for towing or trailer lighting. It includes a black box connector unit and a harness with yellow and green wire ends for driver and passenger side connections.
The kit includes a T-Connector harness with yellow and green wire ends, a black box connector unit, double-sided tape, cable ties, an eyelet, and a screw for grounding. You will need to supply a 3/32" drill bit and a drill.
Yes. You will need a drill and a 3/32" drill bit to create the grounding hole. The manual does not specify other tools, but you may need basic hand tools to remove interior panels and access the wiring harness.
Open the rear tailgate and remove the cargo nets, cargo floor hatch, and spare tire cover. Unscrew the nut holding the spare tire cover. Remove the access panel doors on both sides to reach the vehicle's wiring connectors. Set all removed items aside carefully to avoid damage.
Open the trunk and remove the threshold panel. Partially remove the corner felt trunk liner on both sides to expose the vehicle's taillight wiring harness.
Locate the taillight wiring harness on both driver and passenger sides. Separate the existing connector carefully without breaking the locking tabs. Ensure all connector surfaces are clean and free of dirt. Insert the T-Connector end with the yellow wire (driver's side) between the vehicle wiring connectors and lock into place. Repeat on the passenger's side with the T-Connector end containing the green wire. Verify that connectors are fully inserted with locking tabs in place.
The yellow wire T-Connector end is routed up through the access hole on the driver's side between the spare tire and the rear threshold, then inserted between the vehicle's driver-side taillight wiring connectors.
The green wire T-Connector end is routed to the passenger's side and inserted between the vehicle's passenger-side taillight wiring connectors, following the same procedure as the yellow wire on the driver's side.
Yes. You must drill a 3/32" hole to secure the white grounding wire. Locate a suitable grounding point, clean any dirt from the area, drill the hole, and secure the white wire using the eyelet and screw provided.
Drill a 3/32" hole for the white grounding wire.
Before drilling, verify that miscellaneous items hidden behind or under any surface are not present. This will avoid damage to hidden components and prevent personal injury.
Mount the T-Connector black box using the double-sided tape provided. Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage, rattling, and to avoid any areas that would cut or pinch the wire.
Use the cable ties provided to secure the remainder of the T-Connector harness. Route the harness carefully to prevent damage or rattling and to avoid any areas that would cut or pinch the wire.
Replace both access panels, the spare tire cover, cargo floor hatch, and cargo nets.
Store the 4-Flat in the trunk or rear cargo area when not in use.
The Curt 55522 is designed for Toyota Matrix and Toyota Echo only. It will not fit other Toyota models.
You need a drill and a 3/32" drill bit. All other required parts (tape, cable ties, eyelet, screw) are included.
Yes. You must drill a 3/32" hole to secure the white grounding wire. Before drilling, verify that no hidden items are behind or under the surface.
On a Toyota Matrix: remove cargo nets, cargo floor hatch, spare tire cover, and access panel doors. On a Toyota Echo: remove the threshold panel and partially remove the corner felt trunk liner on both sides.
Separate the vehicle's taillight wiring connectors on both sides. Insert the yellow wire T-Connector end on the driver's side and the green wire end on the passenger's side between the vehicle connectors. Ensure locking tabs are fully in place and connectors are clean.
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