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Tekonsha
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2005 - 2007 Buick Terraza
Confirmed to Fit
2005 - 2009 Chevrolet Uplander
Confirmed to Fit
2005 - 2009 Pontiac Montana SV6
Confirmed to Fit
2005 - 2007 Saturn Relay
Confirmed to Fit
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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: | 118396 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 0.65 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: | 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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4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2005 - 2007 | Buick Terraza | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2005 - 2009 | Chevrolet Uplander | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2005 - 2009 | Pontiac Montana SV6 | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
| 2005 - 2007 | Saturn Relay | Tow Harness T: Connector Assembly Drilling Required Install Time is 15 minutes |
The Tekonsha T-One T-Connector Harness, 4-Way Flat TK118396 (Part #TK118396) fits the following vehicles: 2005-2007 Buick Terraza; 2005-2009 Chevrolet Uplander; 2005-2009 Pontiac Montana SV6; 2005-2007 Saturn Relay. Always verify your specific year, make, and model before ordering.
Yes, the Tekonsha T-One T-Connector Harness, 4-Way Flat TK118396 (Part #TK118396) is designed to fit the 2005-2007 Buick Terraza.
The Tekonsha T-One T-Connector Harness, 4-Way Flat TK118396 (Part #TK118396) fits 2005-2007 Buick Terraza models. The 2009 model year is the last year covered by this part number. For newer models, check for an updated version.
The Tekonsha T-One T-Connector Harness, 4-Way Flat TK118396 (Part #TK118396) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector is a taillight integration harness that allows a trailer to connect to a vehicle's existing taillight wiring. It plugs between the vehicle's taillight socket and wiring harness, routing power to a 4-flat connector for the trailer while maintaining the vehicle's original taillight function. All connections must be complete for the T-Connector to function properly.
The manual does not specify which vehicle models, years, cab styles, or bed lengths are compatible with this T-Connector. Contact the manufacturer or consult a fitment database to confirm compatibility with your specific vehicle before purchasing.
You will need: T-30 Torx bit and driver, trim panel remover, Phillips head screwdriver, and a drill with a 3/32" drill bit. These tools are required for removing taillight assemblies, accessing interior trim, and drilling the grounding hole if an existing ground stud is not available.
The T-Connector includes an eyelet and screw for securing the white ground wire, and cable ties for securing the harness under the bumper. The manual does not specify the quantity of cable ties or other hardware details.
The manual does not specify whether the battery must be disconnected. Consult your vehicle's owner's manual or contact the manufacturer for guidance on electrical safety before beginning installation.
No. The first step requires opening the tailgate to access and remove the vehicle's taillight assemblies by removing the two T-30 Torx head bolts on each side.
1. Remove the vehicle's taillight assemblies by removing the two T-30 Torx head bolts on each side. 2. Disconnect the wire harness from both taillight sockets. 3. Plug the T-Connector end with the yellow wire between the mating plugs on the driver's side taillight socket and vehicle wiring harness. 4. Repeat this connection on the passenger's side with the T-Connector end containing the green wire. All connections must be complete for the T-Connector to function properly.
From the driver's side, route the T-Connector end with the green wire and the 4-flat connector down through the opening between the vehicle bumper and body. Route the green wire end to the passenger's side and route the 4-flat connector underneath the bumper. Route the green wire end up through the opening on the passenger side, being careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. An optional interior routing is available: route the wire inside the vehicle through interior trim panels and down the threshold plate, then up and through the passenger side trim panel and out through the grommet hole.
Secure the remainder of the T-Connector harness under the bumper with the cable ties provided, being careful to avoid any areas that would cut or pinch the wire. When reinstalling trim panels and taillight housings, position the vehicle wiring harness between the housing and the vehicle body, and be careful not to pinch or cut the wires.
Only if a suitable existing ground stud is not available near the connector. If you must drill, you will drill a 3/32" hole to secure the white ground wire using the eyelet and screw provided. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
The standard installation does not require interior trim removal; the harness routes through the opening between the bumper and body. However, an optional interior routing is available that requires partially removing lower interior trim panels on each side of the vehicle. You may choose either routing method based on your preference.
The manual does not specify a torque value for the T-30 Torx head bolts that secure the taillight assemblies. Consult your vehicle's owner's manual for the correct torque specification.
The T-Connector has a yellow wire end that connects to the driver's side taillight socket, a green wire end that connects to the passenger's side taillight socket, a white wire that serves as the ground connection, and a 4-flat connector that connects to the trailer. The manual does not specify the individual functions of the yellow and green wires beyond their connection points.
Do not exceed the lower of your towing manufacturer's rating or: maximum 1 stop/turn light per side at 7.5 amps, and maximum tail lights at 7.5 amps. Overloading the circuit can cause fires. Consult your vehicle's owner's manual and instruction sheet for additional information on your specific towing capacity.
Avoid hot pipes, heat shields, the fuel tank, and any other points that may pinch or break the wire. Do not pinch or cut wires when reinstalling plastic trim panels, thresholds, storage covers, or floor coverings. Secure wires under the bumper with cable ties to prevent damage. When drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury, and do not drill into any exposed surfaces.
Test and verify installation with a test light or trailer once installed. All connections must be complete for the T-Connector to function properly. If using a test light, check that all trailer lights illuminate correctly. If using a trailer, verify that all brake lights, turn signals, and tail lights function as expected.
The manual does not specify any post-installation maintenance, retorque intervals, or periodic inspection requirements. Consult the manufacturer or your vehicle's owner's manual for guidance on long-term maintenance.
The manual does not specify compatible vehicle models or years. Contact the manufacturer or check a fitment database with your vehicle's year, make, model, cab style, and bed length to confirm compatibility.
Yes. You must open the tailgate and remove the taillight assemblies by removing two T-30 Torx bolts on each side to access the taillight sockets.
Only if an existing ground stud is not available. If drilling is needed, you drill a single 3/32" hole for the white ground wire. Always verify what is behind the surface before drilling.
Do not exceed 7.5 amps per stop/turn light (1 per side) or 7.5 amps for tail lights, or your vehicle's towing manufacturer rating, whichever is lower. Overloading can cause fires.
Test with a test light or trailer to verify all connections are complete and functioning. Check that brake lights, turn signals, and tail lights work correctly.
Avoid hot pipes, heat shields, fuel tanks, and pinch points. Do not drill into exposed surfaces. Secure wires with provided cable ties to prevent damage.
Verify that all connections are complete. The manual states that all connections must be complete for the T-Connector to function properly. Check that the yellow wire is fully plugged into the driver's side taillight socket and vehicle wiring harness, and that the green wire is fully plugged into the passenger's side taillight socket and vehicle wiring harness. Test with a test light or trailer to confirm all lights function. If connections are complete and lights still do not work, consult the manufacturer.
Stop using the T-Connector immediately to prevent electrical shorts or fires. Reroute the wires to avoid hot pipes, heat shields, the fuel tank, and any other pinch points. Use the optional interior routing if exterior routing is causing pinch points. Secure all wires with the provided cable ties under the bumper. Inspect the wires for damage; if insulation is compromised, contact the manufacturer for a replacement.
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Matt
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
Total for 4 items:
$142.94
