Which Version of 2022 GMC Yukon Denali Can be Flat Towed behind Motorhome

Question:

I saw a question answered on here about the equipment needed to flat tow a 2022 Yukon Denali. Shopping for new tow vehicle. Getting mixed info on this vehicle. Can you tell me what transfer case it must have. GM component # would be great if that is possible?

asked by: Todd

Expert Reply:

I pulled up the owners manual of the 2022 GMC Yukon Denali and the only version that can be flat towed is the version that has 4 wheel drive with a two speed transfer case that has a neutral and 4 low setting. Any other setup cannot be flat towed. See page 362 of the owners manual to see the entire process to prepare it to be flat towed.

For your 2022 GMC Yukon Denali there is the Blue Ox Base Plate Kit # BLU58FR which is designed for all models besides the AT4. Or the Roadmaster Direct-Connect Base Plate Kit # RM59VR which will work as long as you do not have the diesel engine or AT4.

I do recommend the Roadmaster Automatic Battery Disconnect with Switch # RM-766 to use rather than having to open the hood and manually disconnect the battery while you are flat towing your Denali.

The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 will allow you to use the tail lights on your Denali rather than having to use magnetic lights. The additional wiring of the 6-way will also allow you to use a Charge Line Kit # RM-156-25 so the supplemental braking system you use will not wear down your battery.

If your motorhome has air brakes I recommend the Demco SBS Air Force One Supplemental Braking System # SM99243 otherwise you will want to use the Demco SBS Stay-IN-Play DUO Supplemental Braking System # SM99251. The braking system will help save your brakes on your motorhome and it is required by law in most every state.

expert reply by: Jameson C

Bluestreak64

4/21/2024

I have a GMC 2004 Yukon Denali big v/8, I have used a aftermarket transmission oil pump to pump while pulling behind my RV. The pump is no longer available can you please tell me what pump is available that ican use to replace my pump.