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Recommended Flat Towing Set Up for a 2024 GMC Canyon Denali  

Question:

Hello Jerred, I have a new 2024 GMC Canyon Denali. I will be towing it behind a 2019 Tiffin Allegro 33aa. The RV came with a brand new Blue Ox BX4370 and BX88357 kit. I have the wiring harness from the RV to the tow vehicle. Essentially I need everything from the front of the truck to the tail lights. Can you suggest what I would need to order? Thank you, Wayne

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Expert Reply:

Congrats on the new truck Wayne! I would be happy to make suggestions but I wanted to address one of the parts you got with your RV. The Blue Ox Off-Road Bumper Adapters item # BX88357 that came with your RV attaches to specific bumpers rated to be flat towed that have D-rings. We do not have anything like that.

Unless the new Canyon's come with an option for D-rings instead of tow hooks you'll need to find an aftermarket bumper or use a traditional base plate like item # RM48GR. If you go this route you'll also have to use the Roadmaster Base Plate Adapter Brackets for Blue Ox RV-Mounted Tow Bars item # RO64FR. This will allow you to use your Blue Ox Ascent Tow Bar item # BX4370 with the item # RM48GR.

Additionally, they make the Canyon's right next door to our office and I have only seen ones with tow hooks. Those can't be used for flat towing. The item # RM48GR base plate installs in place of the hooks. It is the only one available for the 2024 Canyons which is why you need the adapter item # RO64FR.

To Flat Tow your 2024 GMC Canyon Denali you will need the following parts:

Wiring Harness - Roadmaster Universal Hy-Power Diode Wiring Kit item # RM-152

Connector and Bracket - RoadMaster 6-Wire Trailer Connector item # RM-910030-7 and Bracket item # RM-910030-5

Battery Disconnect - Roadmaster Battery Disconnect with Switch for Towed Vehicle item # RM-766

Supplemental Braking System - Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes item # SM99251

expert reply by:
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Jerred H
Mike B. profile picture

Mike B.

6/1/2024

One other question Jerred, do I need a battery charge line from the coach Since the Demco is using truck battery power to operate the Demco Stay In Play? Thanks a bunch.

JerredH profile picture
Etrailer Expert

Jerred H.

6/3/2024

@MikeB Roadmaster says you don't need one however if you're running into issues you can install the Roadmaster Battery Charge Line Kit for Towed Vehicles item # RM-156-25.
MikeB profile picture

Mike B.

6/3/2024

@JerredH Thanks a bunch Jerred. Also apologies for posting this under the wrong name. I opened the 2024 Canyon Q&A thinking it was mine. Thanks for addressing it.
Bob W. profile picture

Bob W.

2/10/2025

The 2024 has a push button starter. How do you unlock the steering so you can tow? Also do you now how to put the transfer case in natural. Right now I have a Demco Commander 11 can I still use that bar?

JerredH profile picture
Etrailer Expert

Jerred H.

2/10/2025

@BobW Hey Bob! If you look at pages 318, 319, and 320 in your 2024 GMC Canyon's owner's manual you will find an extremely detailed break down of the set up procedure that will answer both of your questions. The Demco Commander II item # DM9511012 will indeed work but you'll need to use either the etrailer base plate item # e97FV or the Demco item # DM27YV.

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