Difference Between Curt Spectrum Brake Controllers for 2022 GMC Yukon SLT
Updated 12/29/2025 | Published 12/07/2025
Products Featured in This Question
Question:
What’s the difference between C36QV and C88YV For a 2022 GMC YUKON SLT 4X4
asked by: Benjamin N
Expert Reply:
Hi Benjamin; the difference is in the custom wiring harness that comes with each. It looks like there are two possible factory connections on your 2022 GMC Yukon so it will be up to you to determine which one you need. If the factory connector looks like it matches the gray and red connector in the attached picture you need the # C36QV. If it matches the white connector you need # C88YV.
What kind of trailer will you be towing?
(click to enlarge)
(click to enlarge)
Product Page this Question was Asked From
Curt Spectrum Brake Controller w/ Custom Harness - Dash Mounted Knob - Up to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 4 Axles
- Indicator Lights
- Multiple Trailers
- CURT
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Is There Downside to Going with 7500 Air Lift Kit Over 5000
- Q&A: Dimensions of Andersen Weight Distribution Shank
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Troubleshooting Curt Spectrum Brake Controller - No Lights On Control Knob
- Article: Brake Controller Installation: Starting from Scratch
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Q&A: Recommended Brake Controller For A 2024 Chevy Silverado 1500
- Q&A: Recommended Brake Controller for 2023 GMC Sierra's w/ Factory Tow Package
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Picking Out Andersen Weight Distribution System And Adjusting It For A Level Truck And Trailer
- Q&A: What Lights On Curt Spectrum Are Supposed to Activate When Pressing Brake Pedal and No Trailer?
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Article: Gooseneck to 5th Wheel Adapters
- Article: Where to Position the Trailer Axle?
Robin H.
12/29/2025
Hey Benjamin, were you able to figure out which factory connector your Yukon has for the brake controller? Knowing which harness worked could really help others with the same setup.