Flat Tow Parts For 2019 GMC Acadia

Question:

What is the recommended parts to tow my Acadia behind my motor home. What about the Ascent tow bar?

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Expert Reply:

I looked up the owners manual for you 2019 GMC Acadia and it says that both FWD and AWD models with the 3.6L V6 can be towed with all 4 wheels on the ground. If you have the 2.4L L4 it states that it is not designed to be towed with all 4 wheels on the ground. I recommend that you verify what the owners manual states and verify how your Acadia is equipped. The manual will also outline the procedure of how to put your Acadia into tow mode before your trip.

To flat tow your Acadia there are 5 main components you'll need. A base plate, a tow bar, tow bar wiring, safety cables and a supplemental braking system.

The Blue Ox Ascent Tow Bar # BX4370 you referenced will work for your Acadia and a base plate that is also confirmed to fit your Acadia is the Blue Ox base plate with removable arms # BX1728. Typically it's easiest to get a tow bar and base plate from the same manufacturer so there is no need for adapters.

I have always like Roadmaster's tow bars, so I'll list my recommendations below. If you are set on the Blue Ox Ascent, I recommend getting the Blue Ox base plate, but all the other parts will still be compatible.

The base plate is the attachment point on your Acadia for the tow bar to hook up to. Assuming that you have the 3.6L V6, I recommend the Roadmaster Direct-Connect Base Plate Kit # RM-523189-5. I have always like Roadmaster base plates, they seem to install easier than most, and they have removable arms so when your not towing your Acadia it will have a clean look. The base plate determines which tow bar you can use without the need of an adapter.

The tow bar is what actually connects your motor home to the Acadia. I recommend Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522. It's compatible with the base plate I recommended and I really like this tow bar. It's non binding so it's much easier to unhook compared to binding tow bars. The old binding style tow bars can be a hassle to unhook because of the pressure that's put of the attachment pins. But the Falcon all terrain has built in levers to take the pressure off and make unhooking a breeze.

Tow bar wiring is what sends the light signals from your motor home to the Acadia so that when you are driving everyone can know your intentions; driving at night with your tail lights on, or changing lanes. Just like when towing a trailer you need lights at the back. I recommend Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-152-98146-7. The kit includes all the wiring and connectors to get it installed, and even the umbilical cable to connect the back of the motor home to the front of your Acadia.

Safety cables are a secondary safety device that are required whenever towing and the RoadMaster 76" Single Hook, Straight Safety Cables # RM-645-76 would work perfect. They are rated for 8K lbs, and are straight cables so they will fit into the guides on the tow bar to take up some slack and prevent them from dragging the ground.

Finally a supplemental braking systems allows the Acadia to slow and stop itself, so you're not relying on the motor home to do all the work and it helps prevent premature wear.

If you motor home has air brakes I recommend Demco SBS Air Force One Supplemental Braking System # SM99243, if your motor home has hydraulic brakes I recommend Demco SBS Stay-IN-Play DUO Supplemental Braking System # SM99251. Both are 1 time set up systems, so once they are installed there is not an additional step or procedure to do each time you tow. Both are a proportional braking system, which means that it will apply the brakes to your Acadia at the same time and intensity as you apply the brakes to the motor home. So it provides a reliable, smooth braking action with no false braking.

The air force one uses air pressure from the air brakes on the motor home to apply the brakes on the Acadia. The stay and play duo uses the brake light signal from the motor home and an internal inertia sensor to detect how much the Acadia is slowing down to apply the brakes appropriately.

I linked all the parts above, along with several videos so you can see what your Acadia will look like when everything is finished.

expert reply by:
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Robert C

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