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Tekonsha
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2020 - 2023 Tesla Grand Vitara
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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: | 118869 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.65 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: | YES |
| 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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2020 - 2023 | Tesla Grand Vitara | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Yes, the 2020-2023 Tesla 3 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118869 (Part #TK118869) is designed to fit the 2020-2023 Tesla Grand Vitara.
The 2020-2023 Tesla 3 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118869 (Part #TK118869) fits the following vehicles: 2020-2023 Tesla Grand Vitara. Always verify your specific year, make, and model before ordering.
The 2020-2023 Tesla 3 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118869 (Part #TK118869) fits 2020-2023 Tesla Grand Vitara models. The 2023 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2020-2023 Tesla 3 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118869 (Part #TK118869) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® Connector is a vehicle towing connector that provides electrical connections between a tow vehicle and a trailer. It intercepts the vehicle's taillight wiring on both driver and passenger sides and routes power through a black box unit mounted in the trunk, allowing trailer lights to function when connected via the 4-flat connector.
The manual shows installation on a Tesla Model 3 as an example. For compatibility with your specific vehicle, contact the manufacturer or check the product fitment database, as the manual does not provide a complete vehicle compatibility list.
Required tools are: trim panel remover, Phillips head screwdriver, 8mm socket or wrench, drill with 3/32" drill bit, wire crimpers, wire cutters, and test probe. These tools are needed to remove interior panels, access wiring, drill the grounding hole, and test the installation.
The kit includes: double-sided tape for mounting the black box, cable ties for securing the harness, a white wire with eyelet and screw for grounding, a yellow fuse holder with 15 amp fuse, a yellow butt connector for connecting the power wire, and the T-One® Connector harness with yellow and green wire ends. The 4-flat connector should be stored in the rear cargo area when not in use.
Yes. Step 10 requires you to disconnect the vehicle's negative (-) battery cable before connecting the power wire to the positive battery terminal. After all connections are complete and the fuse is installed, you reconnect the negative battery cable in step 14.
Locate the panel below the windshield wipers and remove it to access the vehicle's battery. Be careful not to break any mounting tabs when removing this panel.
Open the trunk and pull back the felt liners on both driver and passenger sides to expose the taillight wiring connectors. On the driver's side, insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors and lock into place, being careful not to damage the locking tabs. Repeat on the passenger's side with the green wire end. Ensure connectors are fully inserted with locking tabs in place.
Mount the black box on the driver's side of the trunk using the double-sided tape provided. Secure the remainder of the harness with the cable ties provided to prevent damage or rattling, being careful to avoid areas that would cut or pinch the wire.
Yes, drilling is required for the grounding connection. You must drill a 3/32" hole near the black box to secure the white ground wire using the eyelet and screw provided. However, you may use an existing ground stud instead if one is available. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury, and do not drill into any exposed surfaces. Clean dirt and rustproofing from the area before securing the ground wire.
Starting from the front of the vehicle, route the black 12 ga. wire rearward along the frame rail, avoiding hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Locate the vent on the driver's side in the rear cargo area and route the wire through this vent from underneath up into the cargo area. The manual suggests using a fish wire through the vent to pull the power wire from underneath the vehicle for ease of installation.
The T-One® Connector uses a 15 amp fuse. The fuse holder is provided with the kit and is installed in step 10 by connecting the ring terminal to the vehicle's positive (+) battery cable, then connecting the other end of the fuse holder to the black 12 ga. wire using the yellow butt connector. The 15 amp fuse is installed in step 14 after all connections are complete.
The T-One® Connector uses four wire colors: yellow (driver's side taillight connector), green (passenger's side taillight connector), black (12 gauge power wire from battery), and white (ground wire). The yellow and green wires connect to the vehicle's taillight wiring connectors. The black wire connects to the vehicle's positive battery terminal via the fuse holder. The white wire connects to a ground point near the black box.
Always wear safety glasses during installation. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into exposed surfaces. When routing the black power wire, avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Do not exceed the towing manufacturer's rating or the product's amperage ratings, as overloading circuits can cause fires. Read and follow all warnings and cautions printed on the tow vehicle's battery.
After installation is complete, 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. All connections must be complete for the T-One® Connector to function properly.
Reinstall all plastic trim panels, threshold, floor covering, and other items that were removed during installation, being careful not to pinch or cut the wires. Store the 4-flat connector in the rear cargo area when not in use.
Yes, disconnect the negative battery cable before connecting the power wire to the positive terminal. Reconnect it after the fuse is installed.
15 amp fuse. Install it in the fuse holder after all connections are complete.
Do not exceed the lower of the towing manufacturer's rating (in your vehicle owner's manual) or the specific amperage ratings stated on the product. The manual does not specify the product's amperage rating.
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Ann
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