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2024 - 2025 Cadillac LYRIQ
Confirmed to Fit
2019 - 2025 Cadillac XT4
Confirmed to Fit
2024 - 2025 Chevrolet Blazer EV
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2024 - 2025 Chevrolet Equinox EV
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2024 - 2025 Honda Prologue
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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: | 118795 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.5 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | NO |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 16 GA. |
| POWER LEAD REQUIRED: | NO |
| ELECTRICAL SYSTEM TYPE: | 2-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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5 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2024 - 2025 | Cadillac LYRIQ | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 15 minutes |
| 2019 - 2025 | Cadillac XT4 | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 15 minutes |
| 2024 - 2025 | Chevrolet Blazer EV | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 15 minutes |
| 2024 - 2025 | Chevrolet Equinox EV | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 15 minutes |
| 2024 - 2025 | Honda Prologue | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 15 minutes |
The 2019-2024 Cadillac XT4 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118795 (Part #TK118795) fits 2024-2025 Cadillac LYRIQ models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2019-2024 Cadillac XT4 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118795 (Part #TK118795) is designed to fit the 2024-2025 Cadillac LYRIQ.
The 2019-2024 Cadillac XT4 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118795 (Part #TK118795) fits the following vehicles: 2024-2025 Cadillac LYRIQ; 2019-2025 Cadillac XT4; 2024-2025 Chevrolet Blazer EV; 2024-2025 Chevrolet Equinox EV; 2024-2025 Honda Prologue. Always verify your specific year, make, and model before ordering.
The 2019-2024 Cadillac XT4 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118795 (Part #TK118795) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part number 118795 is the T-One® Connector, a trailer wiring harness connector made by Horizon Global. It connects your vehicle's factory trailer harness to a 4-flat trailer connector, allowing you to tow a trailer with proper lighting control (tail, brake, and turn signals).
Yes, part number 118795 is compatible with Honda Prologue 2024-2025 model years.
Yes, part number 118795 is compatible with Chevrolet Equinox EV 2024-2025 model years.
Yes, part number 118795 is compatible with Chevrolet Blazer EV 2024-2025 model years.
Yes, part number 118795 is compatible with Cadillac XT4 2019-2025 model years.
Yes, part number 118795 is compatible with Cadillac LYRIQ 2024-2025 model years.
Yes, part number 118795 is compatible with Cadillac OPTIQ Sport 1 2025 model year.
The manual lists specific applications for 2019-2025 model years. For the most up-to-date information regarding additional application years and trim levels, visit the Horizon Global website at www.horizonglobal.com.
The hardware kit includes: a test light, a trim panel remover, and one 6-inch wire tie. A bracket or electrical box for mounting the 4-flat end is not included and must be sourced separately.
Yes. The bracket or electrical box for mounting the 4-flat end connector is not included with part number 118795 and must be purchased separately. You will need to mount the 4-flat end in an accessible location using your own bracket or electrical box.
The factory trailer harness connector is located under the vehicle in the center, behind the rear bumper fascia.
The manual does not explicitly require battery disconnection for this installation. However, it does state that for the initial test after installation, you should reset the vehicle electrical system by temporarily removing the key from the ignition. Always read and follow all warnings and instructions printed on your vehicle's battery before beginning work.
1. Locate the factory trailer harness connector under the vehicle, center, behind the rear bumper fascia. 2. Pull the female connector lock tab and remove the protective cap. Store the cap in the glove compartment with the instructions. 3. Check that connector mating surfaces are clean; clean if necessary. 4. Insert the T-One® Connector and lock into place, ensuring connectors are fully inserted with locking tabs in place. 5. Route the T-One® Connector harness rearward to the back of the bumper fascia. 6. Secure the harness with the provided cable ties, avoiding areas that would pinch, cut, or melt the wire. 7. Mount the 4-flat end in an accessible location with a bracket or electrical box (not included).
Pull the female connector lock tab on the factory harness and remove the protective cap. Check that the mating surfaces of both connectors are free of dirt and clean if necessary. Insert the T-One® Connector into the factory connector and lock into place. Ensure that the connectors are fully inserted with locking tabs in place.
Route the T-One® Connector harness rearward to the back of the bumper fascia. Secure the remainder of the harness with the cable ties provided, taking care to avoid any areas that would pinch, cut, or melt the wire.
Store the protective cap in the glove compartment along with the installation instructions for future reference.
Always wear safety glasses and use all safety precautions during installation. Read and follow all warnings and cautions printed on the tow vehicle's battery. Do not touch the negative battery terminal to the positive battery terminal, as serious injury and damage to the vehicle's electrical system can occur. If your vehicle is equipped with the Start/Stop option, do not connect the module power wire to the support battery; only connect the module to the main vehicle battery. Failure to do so may result in damage.
Do not exceed the lower of the towing manufacturing rating stated in your vehicle owner's manual or the specific amperage ratings stated on the product. Overloading circuits can cause fires. Refer to your vehicle's owner's manual and the product documentation for the specific amperage ratings applicable to your vehicle.
If your vehicle is equipped with the Start/Stop option, do not connect the module power wire to the support battery. Only connect the module to the main vehicle battery. Failure to connect to the vehicle main battery may result in damage to the vehicle's electrical system.
Test and verify the installation with a test light or trailer once installed. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition. A test light is included in the hardware kit. All connections must be complete for the T-One® Connector to function properly.
To reset the vehicle electrical system, temporarily remove the key from the ignition. This should be done for the initial test after installation to verify that the T-One® Connector is functioning properly.
Perform a pre-trip inspection of the 4-way flat harness to ensure no damage to terminals and connection points for proper lighting connection and operation. Clean the 4-way flat connector after each use. Clean the connection and add dielectric grease (sold separately) to the terminal pins. Ensure the 4-way flat harness does not get pinched in door latches, trailer connection points, or allow contact with the road surface.
Yes. Clean the 4-way flat connector after each use. When cleaning, also clean the connection and add dielectric grease (sold separately) to the terminal pins to maintain proper electrical contact and prevent corrosion.
Dielectric grease is a non-conductive lubricant used to protect electrical connections from corrosion and moisture. The manual recommends adding dielectric grease to the terminal pins of the 4-way flat connector during maintenance. Dielectric grease is sold separately and is not included with part number 118795.
Ensure that the T-One® Connector ends are fully inserted and locked in place. If they are not fully seated, remove and reinsert them, making sure the locking tabs engage completely. Then remove the module's power fuse for 10 seconds and repeat the test.
Check the chassis grounds. Ensure that the ring terminals are in full contact with the vehicle chassis. If they are not making proper contact, clean the connection points and reseat the terminals. Then remove the module's power fuse for 10 seconds and repeat the test.
The installation may have activated circuit protection. Start the vehicle and turn off all functions: tail (headlights), brake, and turns. Then remove the module's power fuse for 10 seconds and repeat the test. If power is still absent, check that the fuse is fully inserted into the fuse holder and that the fuse has no breaks. Verify that the fuse holder is connected properly to the positive post of the battery.
Ensure that the module is connected to B+ (positive battery voltage). Using a tester or voltmeter, check for voltage on either side of the yellow butt connector near the module. If there is no voltage on the positive side, the fuse holder may not be properly connected to the positive post of the battery. If voltage is present on the positive side but not on the module side, the yellow connector may be loose or damaged. Remove the module's power fuse for 10 seconds and repeat the test.
Part number 118795 fits Honda Prologue 2024-25, Chevrolet Equinox EV and Blazer EV 2024-25, and Cadillac XT4 2019-25, LYRIQ 2024-25, and OPTIQ Sport 1 2025. For other models or years, visit www.horizonglobal.com.
The kit includes a test light, trim panel remover, and one 6-inch wire tie. A bracket or electrical box for mounting the 4-flat end must be purchased separately.
No drilling is required. The T-One® Connector plugs directly into the factory trailer harness connector located under the vehicle behind the rear bumper fascia.
Do not exceed the towing manufacturing rating in your vehicle owner's manual or the specific amperage ratings on the product. Overloading circuits can cause fires. If your vehicle has Start/Stop, connect the module only to the main vehicle battery, not the support battery.
Clean the 4-way flat connector after each use and add dielectric grease (sold separately) to terminal pins. Perform pre-trip inspections to check for damage. Ensure the harness is not pinched in door latches or in contact with the road surface.
Jennifer
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
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