Flat Towing a Car With a Tow Bar or A-Frame: What to Check
Flat towing a car behind a motorhome or truck can make recreational towing simpler than hauling a trailer. Still, a car towing bar is only one part of a safe setup. Whether you use a tow bar or an A-frame, four-wheels-down towing depends on manufacturer approval, proper base plates, the correct steering state, supplemental braking, working lights, and careful checks before every trip.
How a Tow Bar or A-Frame Connects Two Vehicles
Flat towing a car means pulling it behind a motorhome, pickup, or other tow vehicle with all four of the car's wheels rolling on the pavement. No dolly or trailer carries either axle, so the towed car acts like a trailer that steers itself. A towing bar for a car, or a rigid A-frame, is the link that carries pulling and braking forces between the two vehicles. Those forces should enter the car only through approved attachment points built to handle sustained loads, never through trim pieces or random brackets.
The setup has several distinct parts. The hitch receiver on the tow vehicle accepts the tow bar's shank. Two arms reach forward to the car. On a folding car towing bar they are often adjustable, while a traditional A-frame is fixed. At the car, attachment hardware connects the arms to base plates or another approved mounting structure. Safety cables, a breakaway line, and a lighting connection run alongside as separate systems. Even a well-built connection, however, tells you nothing about whether the car itself can be towed with its wheels turning.
Verify Approval for the Exact Car and Drivetrain
Before you buy car towing bars or mounting hardware, find the recreational-towing section of the owner's manual for your exact model year, transmission, and drivetrain. A model can be approved in one configuration and prohibited in another. Transmission type alone doesn't settle the question. Some automatic transmissions depend on an engine-driven pump for drivetrain lubrication, so turning output shafts with the engine off may starve internal parts of oil. All-wheel-drive and four-wheel-drive vehicles may have transfer cases that need a specific neutral setting, and some can't be flat towed at all.
Shifting into Neutral doesn't by itself make towing a car with a tow bar safe, because gears, bearings, and clutches may still turn without oil circulating. Even when towing is approved, the manufacturer may set a maximum speed or distance, require running the engine at intervals, or call for removing a fuse or following a particular shift sequence. Follow those instructions exactly instead of borrowing numbers from another vehicle. If the manual is silent, vague, or contradictory, get written, vehicle-specific clarification from the manufacturer or a dealer service department before you try flat towing.
Check Base Plates, Attachment Points, and Weight Ratings
Base plates are brackets made for a specific vehicle. They mount behind or through the front fascia and bolt to structural members, which gives the tow bar a strong, correctly positioned connection. This sends towing loads into the frame or subframe rather than the bumper cover. Whether you use a folding tow bar or an A-frame for towing a car, every piece in the chain needs documented compatibility: the car, the base plate kit, the bar, any adapters or drop receivers, and the hitch. Unconfirmed combinations can leave you with mismatched pins, poor geometry, or undersized parts.
Next, compare actual weights with published ratings. Check the tow vehicle's towing capacity and gross combined weight rating. Then weigh the loaded car and the loaded motorhome or truck instead of relying on brochure curb weights. Every link must be rated for the towed weight, including the receiver, tow bar, base plates, and safety cables. Don't assume a recovery eye, bumper beam, or convenient-looking opening can handle sustained highway towing. A qualified installer should mount and inspect the structural attachments. Don't fabricate, drill, or modify brackets yourself.
Confirm Steering, Ignition, and Battery Requirements
When the tow vehicle turns, the towed car's front wheels have to steer freely so the car follows its path instead of dragging its tires sideways. An engaged steering lock can hold the wheels straight. That scrubs the tires, puts extra stress on the tow bar, and makes the car track poorly. Many manufacturers therefore specify an ignition state that leaves the steering unlocked. Because that requirement differs from one vehicle to the next, use the documented steering and ignition setting for your car rather than a key position that supposedly works everywhere, and never bypass a steering lock.
Modern electronics add further conditions. An electronic parking brake may need a specific release procedure. Some electronic gear selectors return to Park automatically when power or the ignition state changes. Leaving the ignition in an accessory mode can drain the battery over a long travel day, and a weak battery can then affect the approved gear or steering state. While parked, confirm that the dashboard shows the indicators and modes your documentation describes. Take any unexpected message or behavior you can't explain to a qualified service technician.
Account for Braking, Lights, and Safety Connections
A tow bar connects the vehicles, but it does nothing to slow the car. Without supplemental braking, the tow vehicle's brakes have to stop both vehicles. That lengthens stopping distances and pushes the car hard against the hitch in a sudden stop. A supplemental braking system applies the car's own brakes in response to the tow vehicle's deceleration. Braking and lighting rules can vary by jurisdiction and often depend on towed weight. Check the requirements everywhere along your route as well as the vehicle and equipment instructions.
Safety cables or chains and a breakaway system do different jobs. Cables keep the car attached if the tow bar or its pins separate, and they need to be routed so they can't drag or bind. A breakaway system applies the car's brakes if it comes loose completely. The car also needs an approved lighting arrangement, such as a wiring kit or add-on lamps, that operates its tail, brake, and turn signal lights. Test each function while parked. Get qualified help with cable routing, breakaway attachment, or brake setup whenever something is unclear.
Know What to Inspect Before Departure and When to Stop
Before every departure, walk around the whole combination while it's parked. Look for cracks, bends, or worn parts on the hitch, tow bar arms, and base plates. Confirm that the arms show their locked indicators and that every pin is fully seated with its retaining clip in place. Check that the safety cables and breakaway lanyard are connected. Have a helper confirm the tail, brake, and turn signals. Finally, make sure the car is in its prescribed transmission, ignition, steering, and parking brake state.
A visual check has limits. It can't confirm hidden mounting strength, how well the supplemental brake actually works, or whether the drivetrain is being lubricated. That's why documented approval and professional installation matter. Follow your equipment's limits on backing up and turning, and plan fuel and rest stops with pull-through exits so you never need a prohibited maneuver. Stop safely if you notice unexpected resistance, poor tracking, new noises, loose connections, or warning messages. After any damage or doubt about the setup, have everything inspected professionally instead of improvising a roadside fix.