2020 GMC Denali 1500 Flat Tow Setup

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Question:

New Carbon Pro 1500 Denali can be flat towed. I am looking to get the proper setup for flat towing, including braking set up and monitoring system. Thank you in advance.

asked by: David A

0

Expert Reply:

To flat tow your GMC Sierra 1500 you'll need base plates, a tow bar, safety cables, a wiring harness, supplemental braking system and possibly a high/low adapter if the installed height of the base plate is more than 3 inches higher or lower than the receiver height of the motorhome.

For base plates, the Roadmaster # RM-523198-4 you'd looked at would be a fine choice. From what I've seen online, the weight of the Sierra 1500 Denali maxes out at around 5000 lbs, in which case the Roadmaster Falcon All Terrain Towbar, part # RM-522 would work well for you. The tow bar features non binding, self centering arms which makes hooking up the car to the tow bar easy, even if you're not on a completely flat surface or the vehicle isn't lined up perfectly behind the motorhome. For safety cables, use # RM-643.

To wire the truck, I'd recommend a diode system like the # RM-15267, as well as the recommended battery quick disconnect, part # RM-766. For a braking system, I like the permanently mounted options unless you're not planning on keeping the vehicle for very long. For a motorhome with hydraulic brakes, use the Demco Stay In Play, part # SM99251 or the Air Force One for motorhomes with air brakes, part # SM99243.

I've linked to the products recommended above, as well as to available installation videos and a help article that will assist in determining if you need a high/low adapter.

expert reply by: Mike L

0

Answer 1

You are correct that the Roadmaster Automatic Battery Disconnect #RM-766 cannot be used with diesel engine vehicles like your GMC Sierra. The issue is the high compression ratio of diesels that cause the engine to surge up to 10 times that of gas…

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Answer 2

We do indeed have the correct battery disconnect switch for your 2023 Chevy Silverado 1500 with a diesel engine. I checked directly with Roadmaster and the correct part for your Chevy is the following: - Roadmaster Battery Disconnect with Switch -…

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Answer 3

According to the owners manual for your 2021 GMC Sierra 1500, disconnecting the battery is the only option to prevent the electric parking brake from activating when you flat tow your truck. We have the Battery Disconnect #RM-766 for gas engines or…

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Answer 4

By removing the negative battery cable you are disconnecting the battery from the chassis of your vehicle. If you begin to remove the positive side before the negative and your wrench would make contact with any part of the vehicle, then you could…

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Answer 5

Yes, the Roadmaster base plate kit part #RM-521453-5 does fit the 2024 Jeep Rubicon X 4xe with the factory steel bumper with the factory winch. We had a customer with this exact setup and they informed us it fit and worked great.

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Answer 6

Yes, you'll need the Roadmaster Direct-Connect Base Plate Kit #RM-523198-5 for your 2024 GMC Sierra 1500 Denali. If you haven't picked out the rest of your flat towing components then I have the following recommendations: Tow Bar: etrailer…

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Answer 7

A 2023 Chevy Silverado 1500 will need to have 4WD and a two-speed transfer case, which will need to be placed in neutral, in order to safely flat tow. Your owner's manual will have a list of instructions to follow to switch your transfer case…

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Answer 8

As long as you are not exceeding the 85 amps at 12 volts per diode max load then you can definitely use the configuration in your diagram. I spoke with my contact at Roadmaster who said that the connections are not watertight but the internal…

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Answer 9

The basic flat towing components for your 2022 GMC Sierra 1500 AT4 include a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. There may be a few other parts to make…

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Answer 10

Since you have a Blue Ox tow bar the base plate kit you'd want for your 2021 GMC Sierra 1500 is the Blue Ox base plate kit part #BLU54VR which is a confirmed fit for your truck and would work directly for your truck.

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Answer 11

There are base plates and a light kit that fit your 2023 GMC Sierra 1500; the base plates are from Blue Ox and fit all models of '23 Sierra 1500, including your Denali. The correct part is the following: - Blue Ox Base Plate Kit #BLU35XR Then for…

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2020 GMC Denali 1500 Flat Tow Setup

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