RV Towing Safety: Choosing the Right Dinghy Brakes, the Right Car & More

Many RVers opt to tow a lightweight vehicle behind their motorhome. Having a car makes it easier to see nearby attractions and eat in restaurants without having to lug around a huge RV. Parking a car is certainly easier, even for the most experienced RVer. As long as you tow safely, bringing along a small car is a great idea. The convenience of a having a car does, however, put some strain on your braking capability, no matter how lightweight that vehicle is. There will be extra weight being pulled, regardless, so it’s important to have an auxiliary braking system on a dinghy setup.

Choose the Right Dinghy Braking SystemRV towing

You have your choice of many different kinds of braking systems and they come in a range of prices. Do the research and see which fits your needs. Basically, all braking systems fall into one of two categories: built-in and portable. The built-in systems connect to the motorhome’s brake system. A portable unit would be installed on the driver’s seat floor, which then clamps to the brake pedal.

  • Installation can range from easy to complicated. A permanently installed system should always be done by a professional. Some of the most popular brands, which range in pricing, include: Brake Buddy Vantage Select, Brake Buddy Stealth, Blue Ox Patriot Portable Supplemental Braking System, Roadmaster Brakemaster, Invisibrake, Danco Manufacturing RVibrake 2, SMI Air Force One Braking System, Stay-In-Play Duo Braking System and Delta Force.
  • Most brake systems have a breakaway switch and cable too.

Towing Facts

Towing a car is not very different from towing a heavy trailer to a truck. There are a few notable differences, however. First, it’s connect to the motorhome but it’s not a fixed connection. Also, all four wheels of the car being towed remain on the ground, which requires some “steering” on the part of the car.

Unless you are able to brake during a stop, there needs to be stopping power that will compensate not only for the motorhome but also the dinghy. If the hitch or tow bar fails, the braking device needs to bring the dinghy to a stop. This is why your braking system is important and you should familiarize yourself with how it works before taking a long trip.

RV towingTowing Laws

In most states, it’s required to have brakes on anything towed behind another vehicle. Weight restrictions vary from state to state but many require vehicles and trailers over a certain weight to have brakes or must stop within a specific distance. Your best bet is to have the braking system since most areas you drive through require it. Otherwise, you need to carefully research the areas you’ll be driving through and note down required distances for stopping.

Choosing a Vehicle

First, make sure your car is dinghy-towable. Some cars do not receive lubrication when the engine is not running. If you tow this type of car you will damage it severely when towing at highway speed limits.

A handy annual guide published by Motorhome lists all the current vehicles that can be towed. It also gives vehicle weight, transmission, speed and distance limits. These limits need to be taken seriously. If a car is listed as not towable past 60 miles an hour it really cannot do 65 without incurring damage.

Important Tips

After you’ve taken care of all that we mentioned above, you’ll have to take a few precautionary steps before you head out for a long drive. For tips on what to do and what not to when towing a car behind an RV, visit this very informative article here.

Also, this guide is a good first step in determining whether or not there are other procedures required to tow your vehicle. In some cases, transmission preparation, ignition-key positioning, fuse removal and other steps are required.

Baseplates and Tow Bar

A baseplate mounts to the frame under the front of the car and attaches to a tow bar. Sometimes, the baseplate is bolt-on or it may require the removal of the front of the vehicle. Do some research to see if there is a baseplate made for your specific vehicle.

Most people use tow bars that mount to the motorhome and connect to the car being towed. Make sure your tow bar is rated for the weight of your vehicle.

LightsRV towing

There is no way of plugging your tow vehicle into your motorhome to have running lights and turn signal. Your brake lights will work if you have them set up to a braking system, but for your other lights to work, you have three choices:

  1. Getting one-way diodes hardwired into the tow car’s electrical system.
  2. Installing independent bulbs in the taillight fixtures of the tow vehicle to mimic a trailer connection.
  3. Using auxiliary lights like tow-truck drivers use.

In all three cases, it’s best to have a professional do the installation.


You’ll want to have Specialty RV Insurance on your motorhome because standard Auto Insurance will not cover you properly in the case of an accident. RV Insurance doesn’t have to be expensive either. Speak with an Insurance Specialist about bundling your RV and Auto Insurance on your towable for a discount: (866) 501-7335

The information in this article was obtained from various sources. This content is offered for educational purposes only and does not represent contractual agreements, nor is it intended to replace manuals or instructions provided by the manufacturer or the advice of a qualified professional. The definitions, terms and coverage in a given policy may be different than those suggested here and such policy will be governed by the language contained therein. No warranty or appropriateness for a specific purpose is expressed or implied.

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