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2022 - 2023 Chevrolet Bolt EUV
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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: | 118845 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.65 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| 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 |
|---|---|---|
| 2022 - 2023 | Chevrolet Bolt EUV | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Yes, the 2022-2023 Chevrolet Bolt EUV Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118845 (Part #TK118845) is designed to fit the 2022-2023 Chevrolet Bolt EUV.
The 2022-2023 Chevrolet Bolt EUV Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118845 (Part #TK118845) fits 2022-2023 Chevrolet Bolt EUV models. The 2023 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2022-2023 Chevrolet Bolt EUV Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118845 (Part #TK118845) fits the following vehicles: 2022-2023 Chevrolet Bolt EUV. Always verify your specific year, make, and model before ordering.
The 2022-2023 Chevrolet Bolt EUV Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118845 (Part #TK118845) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, the T-One T-Connector (118845-037) is designed for the Chevrolet Bolt EUV. The installation manual is specific to this vehicle model.
The T-One T-Connector is a wiring harness that connects between the vehicle's factory tail light connectors to provide a 4-flat trailer connector. It allows you to connect a trailer to your vehicle's electrical system for brake lights, turn signals, and running lights.
You will need: trim panel remover, 10mm socket and ratchet or 10mm wrench, drill with 3/32" bit, wire crimpers, wire cutters, Phillips head screwdriver, and a test probe. Safety glasses are also required.
Open the rear hatch and temporarily remove the rear threshold plate, privacy screen, storage covers, and floor covering. Open the rear door and fold the rear seat forward. On the driver's side, remove the cargo hooks using a 10mm socket or wrench, then partially pull back the interior trim panel carefully to avoid damaging mounting tabs or clips.
The T-Connector harness containing the brown wire plugs in between the vehicle's mating connectors on the driver's side. This is the first electrical connection made during installation.
Mount the T-One T-Connector's black box-module on a flat surface in an out-of-the-way location to prevent damage or rattling. The exact location is not specified in the manual but should be chosen to avoid interference with vehicle operation and occupant safety.
Yes. You must drill a 3/32" hole to secure the white ground wire. 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 do not drill into any exposed surfaces.
Locate a suitable grounding point near the connector, such as the vehicle's frame or crossmember. Clean dirt and rustproofing from the area, drill a 3/32" hole, and secure the white wire using the eyelet and screw provided. Do not drill into the vehicle floor or bed.
Route the T-Connector ends with yellow and green wires along the driver's side cargo area threshold. Locate the center vent and route the harness out through the vent to the rear fascia. Then route the yellow wire connector end along the rear fascia to the driver's side tail light pocket, and the green wire connector end to the passenger's side tail light pocket.
Insert each T-Connector end (yellow for driver's side, green for passenger's side) between the vehicle's mating tail light wiring connectors and lock into place. Be careful not to damage the locking tabs during insertion.
Disconnect the vehicle's negative battery cable. Remove the fuse from the yellow fuse holder provided. Cut the fuse holder wire, attach the ring terminal, and secure it to the vehicle's positive battery cable. Connect the other end of the fuse holder to the black 12 gauge wire using the yellow butt connector provided. Route the black 12 gauge power wire from the T-Connector box along the exterior frame or existing wiring along thresholds into the engine compartment to the battery, avoiding areas that may pinch or break the wire. Reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
Install a 15 amp fuse into the yellow fuse holder provided. This fuse protects the circuit and must be installed after the battery is reconnected.
The power wire from the T-Connector box is black 12 gauge wire. A matching black 12 gauge wire is provided to extend from the T-Connector box to the battery.
Route the black power wire along the exterior frame or follow existing wiring along thresholds into the engine compartment, avoiding areas that may pinch or break the wire. If routing through a grommet and along the exterior of the vehicle, carefully avoid hot pipes, heat shields, the fuel tank, and any other points that may pinch or break the wire.
Never cut into or attach any power wire or device to the high-power orange line, cables, or connectors. Serious injury can result. Always read and follow all warnings and cautions printed on the tow vehicle's battery.
Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage or rattling. Be careful to avoid any areas that would pinch, cut, or melt the wire.
All connections must be complete for the T-Connector to function properly. Test and verify 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.
Store the 4-flat connector in the rear cargo area when not in use. When in use, pull the 4-flat connector through the door and close the door.
Replace both access panels, spare tire cover, cargo floor hatch, and cargo nets that were removed during installation. Also reinstall the rear threshold plate, privacy screen, storage covers, and floor covering that were temporarily removed at the beginning.
Overloading circuits can cause fires. Do not exceed the stated product ratings. Do not exceed the lower of the towing manufacturer rating (including in your vehicle owner's manual) or the specific amperage ratings stated on the product. Always read the vehicle's owner's manual and instruction sheet for additional information.
Always wear safety glasses and use all safety precautions during installation.
The T-One T-Connector (118845-037) is designed for the Chevrolet Bolt EUV.
You need a trim panel remover, 10mm socket/wrench, drill with 3/32" bit, wire crimpers, wire cutters, Phillips screwdriver, test probe, and safety glasses.
A 15 amp fuse is installed in the yellow fuse holder provided with the kit.
Yes, you must disconnect the vehicle's negative battery cable before making the power wire connections. Reconnect it after installing the 15 amp fuse.
Never cut into or attach any device to the high-power orange line, cables, or connectors—serious injury can result. Also avoid routing the power wire near hot pipes, heat shields, or the fuel tank.
Test with a test light or trailer once all connections are complete. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition.
Verify that all connections are complete. Ensure the brown wire harness is fully seated between the vehicle's mating connectors on the driver's side. Confirm the yellow wire connector is locked into the driver's side tail light pocket connectors, and the green wire connector is locked into the passenger's side tail light pocket connectors. Check that the 15 amp fuse is installed in the yellow fuse holder. Verify the white ground wire is securely fastened to the vehicle frame. Test with a test light or trailer. If still not functioning, reset the vehicle electrical system by temporarily removing the key from the ignition.
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May 22, 2023
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