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CURT
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2015 - 2020 GMC Yukon XL
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Always the correct part
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Always the correct part
We know our products
Quality Products
Free Shipping!
| Shipping Weight | 2.000 |
| Axles | 1-4 |
| Mount Angles | Various |
| Warranty | Limited Lifetime |
| Display | OLED Screen |
| Finish | Black |
| Activation | Tri-axis inertia |
| Level Adjust | Auto |

CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
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Call 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2020 | GMC Yukon XL | — |
The 2015-2020 GMC Yukon XL All CURT Assure Proportional 1-4 Axel Auto Leveling Motion-Sensing Trailer Brake Controller (Part #CBC1-163) fits the following vehicles: 2015-2020 GMC Yukon XL. Always verify your specific year, make, and model before ordering.
Yes, the 2015-2020 GMC Yukon XL All CURT Assure Proportional 1-4 Axel Auto Leveling Motion-Sensing Trailer Brake Controller (Part #CBC1-163) is designed to fit the 2015-2020 GMC Yukon XL.
The 2015-2020 GMC Yukon XL All CURT Assure Proportional 1-4 Axel Auto Leveling Motion-Sensing Trailer Brake Controller (Part #CBC1-163) fits 2015-2020 GMC Yukon XL models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2015-2020 GMC Yukon XL All CURT Assure Proportional 1-4 Axel Auto Leveling Motion-Sensing Trailer Brake Controller (Part #CBC1-163) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT brake control harness (part numbers 51451 and 51452) is designed for Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon. Check your vehicle's make and model against this list. The manual does not specify which part number applies to which vehicle, so contact CURT at 877.287.8634 to confirm the correct part for your specific model.
The CURT brake control harness (51451 or 51452) is an electrical connector assembly that links a brake control unit to your vehicle's electrical system. It connects to an empty connection point in the vehicle's electrical junction box under the dash, left of the steering column, and then plugs into the brake control unit's quick connector. The harness enables the brake control unit to function properly.
The electrical junction box is located under the dash, to the left of the steering column. The CURT brake control harness connects to an empty vehicle connection point inside this box. You will need to remove the box cover to access the connection point.
1. Locate the black electrical junction box under the dash, left of the steering column, and remove its cover. 2. Find the empty vehicle connection point inside the box. 3. Insert the CURT harness connector into this connection point, ensuring it is fully inserted with locking tabs in place. 4. Insert the harness's black connector into the brake control unit's quick plug connector. 5. Secure the harness with the provided cable ties, avoiding pinch points. 6. Complete installation and testing per the brake control unit instruction manual.
When you insert the CURT harness connector into the vehicle's connection point, push it in completely until the locking tabs on the connector engage and lock into place. This ensures a secure, fully seated connection. The manual emphasizes this step to prevent loose connections that could cause the brake control harness to malfunction.
The CURT brake control harness comes with cable ties to secure the harness in place. The manual does not specify the quantity, size, or colour of the cable ties. Use them to secure the harness while avoiding pinch points that could damage the wiring.
Avoid pinch points when securing the harness with cable ties. Pinching the harness could damage the wiring and cause electrical faults or failure of the brake control system.
After installation, test the harness for proper function by following the test procedures in the brake control unit instruction manual. The CURT harness installation is complete once you have connected it to the vehicle's junction box and the brake control unit; the brake control unit manual will guide you through functional testing.
Yes. The CURT brake control harness is a connector assembly that links a brake control unit to your vehicle. The harness alone does not control brakes; it enables the brake control unit to communicate with your vehicle's electrical system. You must have a compatible brake control unit and install it according to its instruction manual.
Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon. Contact CURT at 877.287.8634 to confirm which part number applies to your specific model.
No drilling or modification is required. The harness connects to an existing empty connection point in the vehicle's electrical junction box under the dash, left of the steering column.
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