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2023 - 2025 Hyundai Palisade
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Quality Products
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Tekonsha T-One connector (also referred to as T-Connector) wiring harnesses are the fastest and easiest way to add an electrical connector to the back of your vehicle. These connectors are used to link the wiring from your vehicle to the trailer when towing. Tekonsha T-One connectors feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of T-One connectors. To install a Tekonsha T-One wiring harness, simply locate your vehicle's wiring harness connector typically behind the vehicle taillight - unplug the connection and insert the T-Connector into the vehicle's harness. It's that easy! So what are you waiting for? Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 118881 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.5 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, WHITE, YELLOW |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 18 AWG, .85 AVSS |
| POWER LEAD REQUIRED: | YES |
| ELECTRICAL SYSTEM TYPE: | 3-WIRE SYSTEM |
| HARDWARE INCLUDED: | YES |
Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2023 - 2025 | Hyundai Palisade | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
The 2023-2023 Hyundai Palisade Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118881 (Part #TK118881) fits 2023-2025 Hyundai Palisade models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2023-2023 Hyundai Palisade Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118881 (Part #TK118881) is designed to fit the 2023-2025 Hyundai Palisade.
The 2023-2023 Hyundai Palisade Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118881 (Part #TK118881) fits the following vehicles: 2023-2025 Hyundai Palisade. Always verify your specific year, make, and model before ordering.
The 2023-2023 Hyundai Palisade Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118881 (Part #TK118881) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® Connector 118881-037 is designed for Hyundai Palisade and KIA Telluride models.
Required tools: Trim Panel Remover, 10mm Socket & Ratchet or 10mm Wrench, Drill with 3/32" Drill Bit, Wire Crimpers, Wire Cutters, Philips Head Screwdriver, and Test-probe.
Yes. Disconnect the vehicle's Negative (-) battery cable before connecting the power wiring in Step 9. Reconnect it after the fuse holder and fuse are installed in Step 12.
Drilling may be required. You must locate a suitable grounding point near the black box. If an existing ground stud is not available, drill a 3/32" hole to secure the white ground wire. Do not drill into the vehicle floor or bed, and verify what is behind any surface before drilling.
A 15 amp fuse is required. Install it into the yellow fuse holder provided after connecting the power wiring.
Test and verify the installation with a test light or trailer. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. Do not exceed the lower of the towing manufacturer rating (in your vehicle owner's manual) or the product's amperage ratings.
The T-One® Connector is a trailer wiring connector system that integrates with your vehicle's taillight wiring to provide power for trailer lights. It uses a black box module mounted under the vehicle and connects to both driver and passenger side taillights via yellow and green wires, with a 4-Flat connector for the trailer.
The T-One® Connector 118881-037 is confirmed to fit Hyundai Palisade and KIA Telluride models. If you have a different vehicle, consult the manufacturer or a fitment database to confirm compatibility.
Yes. You must remove both driver and passenger side taillights to access the taillight wiring connectors. Open the rear hatch, remove the plastic screw covers, remove the mounting screws (2 per side) using a Phillips screwdriver, and carefully pull the taillights away from the vehicle. Reinstall them after connecting the T-One® Connector.
The T-One® Connector has two ends: one with a yellow wire for the driver's side and one with a green wire for the passenger's side. Insert each end between the vehicle's taillight connector and the taillight socket. Ensure all connector surfaces are clean and free of dirt before insertion. The yellow wire connects to the driver's side taillight pocket, and the green wire connects to the passenger's side taillight pocket.
Mount the black box underneath the vehicle behind the rear bumper fascia on the driver's side using the double-sided tape provided. Clean the mounting surface with a 50-50 mixture of rubbing alcohol and water before mounting. Ensure the epoxy side of the module points toward the ground to prevent water buildup.
Locate a suitable grounding point near the black box, such as an existing ground stud. If one is not available, drill a 3/32" hole and secure the white wire using the eyelet and screw provided. Clean dirt and rustproofing from the area before securing. Do not drill into the vehicle floor or bed.
Disconnect the vehicle's Negative (-) battery cable. Remove the fuse from the yellow fuse holder provided. Cut the fuse holder wire and attach the ring terminal to the vehicle's Positive (+) battery cable. Connect the other end of the fuse holder to the black 12 ga. wire using the yellow butt connector provided. Route the black 12 ga. wire from the front of the vehicle rearward along the frame rail, avoiding hot pipes, heat shields, and the fuel tank. Connect the other end to the black power wire on the T-One® Connector's black box using the yellow butt connector. Finally, reconnect the vehicle's Negative (-) battery cable and install the 15 amp fuse.
The T-One® Connector uses four wire colors: yellow (driver's side taillight connection), green (passenger's side taillight connection), white (ground wire), and black (12 ga. power wire). Yellow butt connectors are provided for joining the fuse holder and power connections.
Route the yellow wire harness from underneath the vehicle up through the opening between the bumper and body to the driver's side taillight pocket. Route the green wire harness to the passenger's side, down and underneath the vehicle, then up through the same opening to the passenger's side taillight pocket. Route the black 12 ga. power wire from the front of the vehicle rearward along the frame rail. Use a fish wire between the taillight pocket and rear fascia to help pull the harness through. Avoid routing wires through hot pipes, heat shields, the fuel tank, or any points that may pinch or break the wire.
Route the 4-Flat harness underneath and to the center of the vehicle. Mount the 4-Flat end in an accessible location using a bracket or electrical box (not included with the product).
Always wear safety glasses during installation. Read and follow all warnings and cautions printed on the tow vehicle's battery. Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces, the vehicle floor, or bed. Be careful not to break mounting tabs when removing taillight covers. Avoid pinching or cutting wires when reinstalling taillights and other components. Do not exceed the towing manufacturer's rating or the product's amperage ratings, as overloading circuits can cause fires.
After installation, test and verify the system with a test light or by connecting a trailer. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. Ensure all connections are complete and secure. Verify that the 15 amp fuse is installed in the fuse holder. Check that the black box is properly mounted with the epoxy side pointing toward the ground.
The T-One® Connector includes: double-sided tape for mounting the black box, a white wire with eyelet and screw for grounding, a yellow fuse holder with a 15 amp fuse, two yellow butt connectors for power connections, and the connector harness with yellow and green wires for taillight integration.
Drill a 3/32" hole to secure the white ground wire using the eyelet and screw provided. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into the vehicle floor or bed, and clean dirt and rustproofing from the area before securing the wire.
For ease of installation, use a fish wire between the taillight pocket and rear fascia to pull the harness from underneath the vehicle out through the taillight pocket. This is recommended for both the driver's side (yellow wire) and passenger's side (green wire) harnesses.
Clean the flat mount surface area using a 50-50 mixture of rubbing alcohol and water before mounting the black box with the double-sided tape provided. This ensures proper adhesion and helps prevent water damage.
Using a trim panel tool or screwdriver, carefully remove the plastic screw covers that are covering the taillight mounting screws. Be careful not to break the mounting tabs during removal.
There are 2 mounting screws per side (driver's side and passenger's side), for a total of 4 screws. Remove them using a Phillips screwdriver.
When disconnecting the vehicle wiring harness from the taillight sockets, be careful not to break the locking tabs. Set the taillights aside safely during installation.
Yes. All connector surfaces must be clean and free of dirt before inserting the T-One® Connector ends into the vehicle and taillight connectors. This ensures proper electrical contact.
The power wire is 12 ga. (12 gauge). It connects from the vehicle's Positive (+) battery cable through the fuse holder to the black power wire on the T-One® Connector's black box.
If routing the wire through a grommet and along the exterior of the vehicle, be careful to avoid any hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. This applies to both the green wire (passenger side) and the black power wire.
Verify that all connections are complete and secure. Ensure the 15 amp fuse is installed in the fuse holder. Check that the black box is properly mounted with the epoxy side pointing toward the ground. Verify that the yellow wire is properly inserted between the vehicle and driver's side taillight connector, and the green wire is properly inserted between the vehicle and passenger's side taillight connector. Reset the vehicle electrical system by temporarily removing the key from the ignition, then test with a test light or trailer.
The black box is not mounted correctly. The epoxy side of the module must point toward the ground to prevent water buildup. Remount the black box using the double-sided tape provided, ensuring the epoxy side faces downward.
A repeatedly blown fuse indicates an overcurrent condition, which may be caused by a short circuit or overloading. Check all power connections for loose or damaged wires. Verify that the black 12 ga. power wire is not pinched or damaged along its route from the battery to the black box. Ensure the circuit is not exceeding the product's amperage rating or the towing manufacturer's rating. If the problem persists, discontinue use and consult the manufacturer.
Ensure all connector surfaces are clean and free of dirt before insertion. If the connectors still do not seat properly, verify that you are inserting the correct end of the T-One® Connector (yellow wire for driver's side, green wire for passenger's side) into the correct taillight pocket. Do not force the connectors; they should insert smoothly when properly aligned.
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Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
