Difference Between Curt Spectrum Brake Controllers for 2022 GMC Yukon SLT
Updated 12/29/2025 | Published 12/07/2025
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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
- Plug-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 4 Axles
- Indicator Lights
- Multiple Trailers
- CURT
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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.