Can The Curt TriFlex NEXT Trailer Brake Controller Be Installed On A 2020 Buick Enclave?

Updated 07/28/2026 | Published 07/17/2026

Products Featured in This Question

Universal Wiring Adapter for Curt Trailer Brake Controllers

(463)

$15.99

Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional

(1243)

$141.95

Question:

Please tell me the Curt part number for a Quick Plug Harness that will connect a Curt brake controller 51146 to my 2020 Buick Enclave that has factory installed trailering package.

asked by: William C

Expert Reply:

Hey William, thanks for reaching out. You can use the Curt TriFlex NEXT Trailer Brake Controller # C24VV (51146) in your 2020 Buick Enclave, but Curt doesn't offer a custom pigtail for that vehicle. You can still install the controller, but it will mean hardwiring in a new plug.

What you'll need to do is cut off the factory brake control plug and wire in the Universal Wiring Adapter for Curt Trailer Brake Controllers # C51515. That'll allow for plug-in installation of the Curt brake controller. That way you can unplug and remove the controller if needed.

What kind of trailer will you be hauling?

expert reply by: Jesse M

Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional
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Universal Wiring Adapter for Curt Trailer Brake Controllers
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William C.

7/28/2026

Curt Mfg. has recommended a universal harness #51531 which has some a few more features than #51515. I'm uncertain which is the best for my 2020 Buick Enclave. Could you provide some clarification? My cell phone number is 952-807-2552.

Jesse M.

7/28/2026

@WilliamC Both will work. The 51531 comes with the same pigtail as the 51515, only the 51531 includes four quick-splice connectors and zip ties for securing the wire. That said, the 51531 isn't something we carry here, so the # C51515 is what I recommend. You'll just need to grab a few heat-shrink butt connectors, and you'll be good to go. I don't really trust those quick-splice connectors anyways.