Is it safe to tow with a tow bar?
In many cases, towing with a tow bar can be safe when both vehicles are properly equipped and within manufacturer limits, but it is not universally safe. The safety depends on the towed vehicle’s drivetrain, transmission type, and the towing method used. Always consult the owner's manuals and local regulations.
To understand the safety considerations, this article explains how tow bars work, the kinds of vehicles they are most compatible with, the essential safety checks, and viable alternatives if your setup isn’t appropriate.
How tow bars work
A tow bar creates a rigid link between the towing vehicle and the towed vehicle, allowing a controlled pull when moving. The system typically involves base plates mounted to the towed vehicle, a tow bar connected to the tow vehicle’s hitch, and electrical/ braking components to synchronize signals and braking between both vehicles. Safety chains and proper lighting are usually required to ensure visibility and redundancy in case of a connection failure. This setup is commonly used when towing behind RVs, trucks, or other motorized tow vehicles.
Is it safe for all vehicles?
Not every vehicle is designed for flat towing with a tow bar. Vehicles with automatic transmissions, all-wheel drive, or advanced electronics may have restrictions that prevent safe flat towing, or may require special equipment (such as a driveshaft disconnect, a tow dolly, or a trailer) to avoid drivetrain damage. Manual transmission cars are generally more tolerant of certain tow-bar configurations, but every model must be checked in the owner’s manual for specific instructions and limitations.
Drivetrain and compatibility
For automatics, flat towing can cause transmission damage unless the manufacturer specifies it as towable and provides exact procedures. Some automatics require the drivetrain to be disconnected or a separate lubrication method during towing. Manual transmissions are often towable with the transmission in neutral, but this varies by model. AWD/4WD layouts may require driveshaft disconnection or avoidance of flat towing altogether. Always verify with the vehicle manufacturer before towing.
Safety checks and setup
Before you tow with a tow bar, perform the following checks to ensure the system is properly installed and safe for the road ahead.
- Verify vehicle compatibility with the intended towing method and confirm weight ratings for both vehicles (GVWR, GCWR, and tow capacity).
- Ensure the tow bar, base plates, hitch hardware, and any adapters are rated for the combined weight and correctly installed.
- Connect all electrical systems so the towed vehicle’s brake lights, turn signals, and running lights operate in sync with the tow vehicle. Install a supplementary braking system if required by the setup.
- Attach safety chains or cables in a secure, crossed pattern and maintain appropriate slack to allow steering and turns without dragging.
- Check tires, fluids, battery health, and release the parking brake on the towed vehicle (and/or follow manufacturer guidance on parking brake and neutral gear for automatics/manuals).
- Confirm steering on the towed vehicle is unlocked and that it can steer freely without binding or binding at the wheels.
- Perform a short test drive at a low speed to verify all connections, lights, brakes, and steering operate correctly.
If any item cannot be satisfied, do not proceed with a tow bar setup and seek professional guidance. Improperly connected or misrated gear significantly increases risk on the road.
Legal and insurance considerations
Regulations regarding towing with a tow bar vary by country, state, or province. Most jurisdictions require functioning tail lights, brake lights, and turn signals on the towed vehicle, and may mandate a braking system, safety chains, and proper lighting under all conditions. Insurance coverage can be affected if the towing arrangement does not comply with manufacturer recommendations or local laws. Always verify legal requirements and policy coverage before undertaking a tow.
Alternatives to tow bars
If a tow bar is not appropriate for the vehicle or situation, consider these alternatives which can offer safer or more compliant options for transporting a vehicle.
- Tow dolly (two wheels on the ground): The towed vehicle’s front wheels rest on a dolly, reducing drivetrain stress for many automatics. This method is common when flat towing is not advised.
- Trailer or car carrier: A full trailer carries the entire vehicle, providing maximum protection for the drivetrain but requiring more space, better licensing, and stronger towing equipment.
- Professional towing service: A specialized service can handle equipment and safety compliance for long moves or uncertain vehicle compatibility.
Choosing the right method depends on the vehicle design, distance, and local regulations. In some cases a tow bar is appropriate; in others a dolly or trailer is safer or legally required.
What experts say and practical tips
Experts emphasize always consulting the towed vehicle’s owner’s manual and the towing vehicle’s manual, using equipment that is properly rated, and maintaining the system through regular inspections. They also stress planning ahead for emergencies on the road, including having roadside assistance options and a clear driving plan when towing.
Summary
Tow bars can be a safe and practical solution for moving a vehicle when used with compatible vehicles, appropriate equipment, and adherence to manufacturer guidance and local laws. They are not universally safe for every vehicle or situation, so always verify drivetrain compatibility, weight limits, and required safety features before towing. When in doubt, explore alternatives such as a dolly or trailer, or consult a professional to ensure a secure and compliant tow.
Is it safe to tow a car with a tow strap?
It's not a good way to tow a vehicle as both vehicle drivers needs to be very good drivers and in sync with the others driving to ensure that they don't cause an accident or damage to either vehicle as the tow strap points of contact are under much higher stress and pressure than when towing with a tow bar.
How do I protect my transmission while towing?
Simply put the vehicle in park and tow. If all four wheels are on the ground, your vehicle must be equipped with a proper towing device, to keep the transmission from turning without proper lubrication. Simply putting the vehicle in neutral will not prevent it from sustaining damage.
Can you tow with a tow bar?
A tow bar is a device that connects a vehicle to an RV for flat towing. It uses a shank, pivoting arms and attachment tabs to couple the two vehicles together. The towed vehicle is called the dinghy, and it becomes a sort of trailer when connected to the RV.
What is the 80% rule when towing?
The "80% towing rule" is a popular guideline suggesting that the weight of a fully loaded trailer should not exceed 80% of your vehicle's maximum towing capacity. This provides a safety margin for factors like passengers, cargo, and adverse road conditions, helping to minimize wear and tear on your vehicle's components and ensuring more stable and controlled towing.
This video explains the 80/20 towing rule and its importance: 1mDrivin' and Vibin'YouTube · Nov 23, 2021
Why follow the 80% rule?
- Safety Margin: The 80% rule creates a buffer for factors you might not account for, such as passengers, gear, miscalculating weight, and poor weather.
- Component Protection: Towing at the full capacity puts significant stress on your vehicle's engine, transmission, brakes, and suspension. Staying under the 80% limit can help prevent premature wear and damage.
- Vehicle Control: By not maxing out your towing capacity, you maintain better control of the vehicle, which is crucial for safety, especially in emergencies or less-than-ideal driving conditions.
- Peace of Mind: It provides a more comfortable and confident towing experience, knowing you aren't operating at the absolute limit of your vehicle's capabilities.
How to apply the 80% rule
- Find your vehicle's max towing capacity: This is the maximum weight specified by the manufacturer, often listed on a sticker on the driver's side door jamb or in the owner's manual.
- Calculate 80% of that capacity: Multiply your vehicle's maximum towing capacity by 0.80. For example, a vehicle with a 10,000 lb towing capacity should not pull a trailer weighing more than 8,000 lbs.
- Determine your fully loaded trailer's weight: This includes the trailer's dry weight plus the weight of all cargo, water, and propane.
- Compare: Ensure your fully loaded trailer's weight is at or below the 80% limit you calculated.
